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14-3-3 protein
16S rRNA methyltransferase RsmF
2',3'-cyclic nucleotide 3'-phosphodiesterase (CNP or CNPase)
2'-5'-oligoadenylate synthetase 1, domain 2, C-terminus
26S proteasome subunit RPN7
2-C-methyl-D-erythritol 4-phosphate cytidylyltransferase
[2Fe-2S] binding domain
2Fe-2S iron-sulfur cluster binding domain
2OG-Fe(II) oxygenase superfamily
2-oxoacid dehydrogenases acyltransferase (catalytic domain)
3'5'-cyclic nucleotide phosphodiesterase
3'-5' exonuclease
3' exoribonuclease family, domain 1
3' exoribonuclease family, domain 2
3-hydroxyacyl-CoA dehydrogenase, C-terminal domain
3-hydroxyacyl-CoA dehydrogenase, NAD binding domain
3-hydroxyanthranilic acid dioxygenase
40S ribosomal protein S4 C-terminus
4'-phosphopantetheinyl transferase superfamily
50S ribosome-binding GTPase
5'-AMP-activated protein kinase beta subunit, interaction domain
5-formyltetrahydrofolate cyclo-ligase family
5'-nucleotidase, C-terminal domain
5' nucleotidase, deoxy (Pyrimidine), cytosolic type C protein (NT5C)
5' nucleotidase family
60s Acidic ribosomal protein
6-O-methylguanine DNA methyltransferase, DNA binding domain
6-O-methylguanine DNA methyltransferase, ribonuclease-like domain
6-phosphofructo-2-kinase
6-phosphogluconate dehydrogenase, C-terminal domain
6-pyruvoyl tetrahydropterin synthase
7 transmembrane receptor (rhodopsin family)
7 transmembrane receptor (Secretin family)
7 transmembrane sweet-taste receptor of 3 GCPR
8-oxoguanine DNA glycosylase, N-terminal domain
A1 Propeptide
A20-like zinc finger
AAA domain
AAA domain (dynein-related subfamily)
ABC1 family
ABC transporter
ABC transporter transmembrane region
Abl-interactor HHR
Acetylcholinesterase tetramerisation domain
Acetyltransferase (GNAT) family
Acid Phosphatase
Aconitase C-terminal domain
Aconitase family (aconitate hydratase)
Actin
Actin-like protein 7A N-terminus
Activator of Hsp90 ATPase homolog 1-like protein
Activin types I and II receptor domain
Acyl CoA binding protein
Acyl-CoA dehydrogenase, C-terminal domain
Acyl-CoA dehydrogenase, middle domain
Acyl-CoA dehydrogenase, N-terminal domain
Acyl-CoA thioester hydrolase/BAAT N-terminal region
Acylphosphatase
Acyl transferase domain
ADAM cysteine-rich
Adaptin C-terminal domain
Adaptin N terminal region
Adaptor complexes medium subunit family
Adenomatous polyposis coli tumour suppressor protein
Adenosine/AMP deaminase
Adenosine/AMP deaminase N-terminal
Adenosine-deaminase (editase) domain
Adenosine deaminase z-alpha domain
Adenosylmethionine decarboxylase
Adenoviral fibre protein (knob domain)
Adenylate and Guanylate cyclase catalytic domain
Adenylate cyclase associated (CAP) C terminal
Adenylate kinase
Adenylate kinase, active site lid
Adenylate sensor of SNF1-like protein kinase
Adenylosuccinate lyase C-terminus
Adenylosuccinate synthetase
Adenylylsulphate kinase
Adhesion molecule, immunoglobulin-like
AdoMet dependent proline di-methyltransferase
ADP-ribosylation factor family
ADP-ribosyl cyclase
ADP-ribosylglycohydrolase
Agenet domain
Agouti protein
AhpC/TSA family
AICARFT/IMPCHase bienzyme
AIG1 family
AIG2-like family
AIMP2 lysyl-tRNA synthetase binding domain
AIR synthase related protein, C-terminal domain
AIR synthase related protein, N-terminal domain
Alcohol dehydrogenase GroES-like domain
Aldehyde dehydrogenase family
Aldehyde oxidase and xanthine dehydrogenase, a/b hammerhead domain
Aldo/keto reductase family
Aldose 1-epimerase
ALIX V-shaped domain binding to HIV
Alkaline phosphatase
Alpha-2-macroglobulin family
Alpha-2-macroglobulin family N-terminal region
Alpha-2-macroglobulin RAP, C-terminal domain
Alpha-2-macroglobulin RAP, N-terminal domain
Alpha amylase, catalytic domain
Alpha amylase, C-terminal all-beta domain
Alpha/beta hydrolase family
alpha/beta hydrolase fold
Alpha crystallin A chain, N terminal
Alpha galactosidase A
Alpha-haemoglobin stabilising protein
Alpha-macro-globulin thiol-ester bond-forming region
A-macroglobulin complement component
A-macroglobulin receptor
Amidinotransferase
Amidohydrolase
Amidohydrolase family
Aminomethyltransferase folate-binding domain
Aminopeptidase P, N-terminal domain
Amino terminal of the G-protein receptor rhodopsin
Amino-terminal Zinc-binding domain of ubiquitin ligase E3A
Aminotransferase class I and II
Aminotransferase class-III
Amino-transferase class IV
Aminotransferase class-V
Ammonium Transporter Family
AMP-binding enzyme
AMP-binding enzyme C-terminal domain
Amyloid A4 N-terminal heparin-binding
AN1-like Zinc finger
Anaphase-promoting complex APC subunit CDC26
Anaphase-promoting complex, cyclosome, subunit 3
Anaphase-promoting complex, cyclosome, subunit 4
Anaphase-promoting complex subunit 1
Anaphase-promoting complex, subunit 10 (APC10)
Anaphase-promoting complex subunit 11 RING-H2 finger
Anaphase-promoting complex subunit 5
Anaphase promoting complex subunit 8 / Cdc23
Anaphylotoxin-like domain
Angiotensin-converting enzyme
Animal haem peroxidase
Ankyrin repeat
Ankyrin repeats (3 copies)
Ankyrin repeats (many copies)
Annexin
Anticodon binding domain
APC 15 residue motif
APC cysteine-rich region
Aph-1 protein
APOBEC-like N-terminal domain
Apolipoprotein A1/A4/E domain
Apolipoprotein C-I (ApoC-1)
Apolipoprotein C-II
Apolipoprotein CIII (Apo-CIII)
ApoM domain
Apoptosis-inducing factor, mitochondrion-associated, C-term
Apoptosis inhibitory protein 5 (API5)
Apoptosis preventing protein
Apoptosis regulator M11L like
Apoptosis regulator proteins, Bcl-2 family
Apyrase
ARD/ARD' family
Arf6-interacting domain of mitotic kinesin‐like protein 1
Arfaptin-like domain
Arginase family
Argininosuccinate lyase C-terminal
Arginosuccinate synthase
Arginyl tRNA synthetase N terminal domain
ArgK protein
Argonaute linker 1 domain
Argonaute linker 2 domain
ARID/BRIGHT DNA binding domain
Armadillo-associated region on APC
Armadillo/beta-catenin-like repeat
Arrestin (or S-antigen), C-terminal domain
Arrestin (or S-antigen), N-terminal domain
Arylesterase
ASF1 like histone chaperone
Asparaginase
Aspartate/ornithine carbamoyltransferase, Asp/Orn binding domain
Aspartate/ornithine carbamoyltransferase, carbamoyl-P binding domain
Aspartyl/Asparaginyl beta-hydroxylase
Aspartyl protease
Astacin (Peptidase family M12A)
Ataxin-1 and HBP1 module (AXH)
Ataxin-2 C-terminal region
ATP
ATP1G1/PLM/MAT8 family
ATPase family associated with various cellular activities (AAA)
ATP-binding dynein motor region D5
ATP citrate lyase citrate-binding
ATP cone domain
ATP dependent DNA ligase C terminal region
ATP dependent DNA ligase domain
ATP-dependent protease La (LON) substrate-binding domain
ATP-NAD kinase
Atrial natriuretic peptide
Atypical Arm repeat
Aurora-A binding
Autophagy protein Apg5
Autophagy protein Apg6
Autophagy protein Atg8 ubiquitin like
Autophagy-related protein 13
B12 binding domain
B3/4 domain
BAAT / Acyl-CoA thioester hydrolase C terminal
Bacterial extracellular solute-binding protein
Bacterial extracellular solute-binding proteins, family 5 Middle
Bacterial transferase hexapeptide (six repeats)
BadF/BadG/BcrA/BcrD ATPase family
BAFF-R, TALL-1 binding
BAG domain
BAH domain
Band 3 cytoplasmic domain
BAR domain
BAR domain of APPL family
Barrier to autointegration factor
B-box zinc finger
B-cell receptor-associated protein 31-like
Bcl-2 homology region 4
Bcl-x interacting, BH3 domain
BCMA, TALL-1 binding
BCORL-PCGF1-binding domain
Bcr-Abl oncoprotein oligomerisation domain
BED zinc finger
Beige/BEACH domain
Beta-1 integrin binding protein
Beta2-adaptin appendage, C-terminal sub-domain
Beta-2-glycoprotein-1 fifth domain
beta-acetyl hexosaminidase like
Beta-amyloid peptide (beta-APP)
beta-amyloid precursor protein C-terminus
Beta-catenin-interacting protein ICAT
Beta defensin
Beta-galactosidase jelly roll domain
Beta/Gamma crystallin
Beta-ketoacyl synthase, C-terminal domain
Beta-ketoacyl synthase, N-terminal domain
Beta-lactamase superfamily domain
Beta-microseminoprotein (PSP-94)
beta-N-acetylglucosaminidase
Beta-trefoil DNA-binding domain
BH3 interacting domain (BID)
Biliverdin reductase, catalytic
Binding domain of DNA repair protein Ercc1 (rad10/Swi10)
Binding region of GANP to ENY2
Biopterin-dependent aromatic amino acid hydroxylase
Biotin carboxylase C-terminal domain
Biotin-requiring enzyme
BNR repeat-like domain
Bone marrow stromal antigen 2
Bovine leukaemia virus receptor (BLVR)
BPS (Between PH and SH2)
BRCA1 C Terminus (BRCT) domain
BRCA2 repeat
BRCT domain, a BRCA1 C-terminus domain
BRICHOS domain
BRK domain
BRO1-like domain
Bromodomain
Bromodomain associated
BSD domain
BTB And C-terminal Kelch
BTB/POZ domain
BTG family
BTK motif
bZIP Maf transcription factor
bZIP transcription factor
C1q domain
C2 domain
C2 domain in Dock180 and Zizimin proteins
C2 domain of PTEN tumour-suppressor protein
C2H2-type zinc finger
C2H2 type zinc-finger (2 copies)
C2H2-type zinc-finger domain
C2HE / C2H2 / C2HC zinc-binding finger
C-5 cytosine-specific DNA methylase
Ca2+ insensitive EF hand
CAAX prenyl protease N-terminal, five membrane helices
Cadherin domain
CAF1 family ribonuclease
Calcineurin-like phosphoesterase
Calcineurin-like phosphoesterase superfamily domain
Calcitonin / CGRP / IAPP family
Calcium-activated BK potassium channel alpha subunit
Calcium binding and coiled-coil domain (CALCOCO1) like
Calcium-binding EGF domain
Calcium/calmodulin dependent protein kinase II association domain
Calpain family cysteine protease
Calpain large subunit, domain III
Calponin homology (CH) domain
Calreticulin family
Calsequestrin
Calx-beta domain
CAMSAP CH domain
CAP-Gly domain
Carbamoyl-phosphate synthase L chain, ATP binding domain
Carbamoyl-phosphate synthase L chain, N-terminal domain
Carbohydrate-binding module 48 (Isoamylase N-terminal domain)
Carbohydrate phosphorylase
Carbon-nitrogen hydrolase
Carboxylesterase family
Carboxyl transferase domain
Carboxypeptidase activation peptide
Carboxypeptidase regulatory-like domain
Carnitine O-palmitoyltransferase N-terminus
CASC3/Barentsz eIF4AIII binding
Casein kinase II regulatory subunit
Caspase domain
Caspase recruitment domain
Catalase
Catenin-beta-like, Arm-motif containing nuclear
Cathelicidin
Cathepsin propeptide inhibitor domain (I29)
Cation-independent mannose-6-phosphate receptor repeat
CBL proto-oncogene N-terminal domain 1
CBL proto-oncogene N-terminus, EF hand-like domain
CBL proto-oncogene N-terminus, SH2-like domain
CBS domain
CCAAT-binding transcription factor (CBF-B/NF-YA) subunit B
CCR4-Not complex component, Not1
CCR4-NOT transcription complex subunit 1 CAF1-binding domain
CCR4-NOT transcription complex subunit 1 TTP binding domain
CD36 family
CD47 immunoglobulin-like domain
CD4, extracellular
CD80-like C2-set immunoglobulin domain
Cdc37 C terminal domain
Cdc37 Hsp90 binding domain
Cell-cycle alteration and expression-elevated protein in tumour
Cell differentiation family, Rcd1-like
Cell division cycle-associated protein 8
Cell division protein 48 (CDC48), domain 2
Cell division protein 48 (CDC48), N-terminal domain
Cell division protein anillin
CENP-B N-terminal DNA-binding domain
CENP-S associating Centromere protein X
Centromere kinetochore component CENP-T histone fold
Centromere protein M (CENP-M)
Centrosome microtubule-binding domain of Cep57
Cep120 protein
Cerebral cavernous malformation protein, harmonin-homology
Chaperonin 10 Kd subunit
CHCH domain
CH-like domain in sperm protein
Cholecystokinin A receptor, N-terminal
Choline/Carnitine o-acyltransferase
Choline/ethanolamine kinase
CHORD
Chromo (CHRromatin Organisation MOdifier) domain
Chromo shadow domain
Chromosome passenger complex (CPC) protein INCENP N terminal
Chromosome segregation protein Spc25
Churchill protein
CHY zinc finger
CIDE-N domain
Ciliary neurotrophic factor
CITED
CLASP N terminal
Class I Histocompatibility antigen, domains alpha 1 and 2
Class II Aldolase and Adducin N-terminal domain
Class II histocompatibility antigen, alpha domain
Class II histocompatibility antigen, beta domain
Class II MHC-associated invariant chain trimerisation domain
Clathrin adaptor complex small chain
Clathrin-binding domain of Huntingtin-interacting protein 1
Clathrin propeller repeat
Clostridial binary toxin B/anthrax toxin PA
Clostridial neurotoxin zinc protease
Clp protease
CoA binding domain
Coagulation Factor Xa inhibitory site
CoA-ligase
Coatomer gamma subunit appendage platform subdomain
Coatomer subunit gamma-1 C-terminal appendage platform
Cobalamin adenosyltransferase
Cocaine and amphetamine regulated transcript protein (CART)
CO dehydrogenase flavoprotein C-terminal domain
Coenzyme A transferase
Cofilin/tropomyosin-type actin-binding protein
Coiled-coil and interaction region of P66A and P66B with MBD2
Coiled-coil N-terminus of APC, dimerisation domain
Coiled-coil N-terminus of cGMP-dependent protein kinase
'Cold-shock' DNA-binding domain
Colipase, N-terminal domain
Collagenase NC10 and Endostatin
Collagen triple helix repeat (20 copies)
Connexin
Conserved carboxylase domain
Copper amine oxidase, enzyme domain
Copper amine oxidase, N2 domain
Copper amine oxidase, N3 domain
Copper-binding of amyloid precursor, CuBD
Copper/zinc superoxide dismutase (SODC)
Coproporphyrinogen III oxidase
COQ9
Cor1/Xlr/Xmr conserved region
Core binding factor beta subunit
Core histone H2A/H2B/H3/H4
Corticotropin-releasing factor family
CPL (NUC119) domain
CPSF A subunit region
CRAL/TRIO domain
CRAL/TRIO, N-terminal domain
Creatinase/Prolidase N-terminal domain
Creb binding
Crisp
CRISPR-associated protein (Cas_Cas2CT1978)
CRM1 C terminal
CS domain
c-SKI Smad4 binding domain
CSL zinc finger
CSN8/PSMD8/EIF3K family
CST, Suppressor of cdc thirteen homolog, complex subunit STN1
C-terminal associated domain of TOPRIM
C-terminal domain of 1-Cys peroxiredoxin
C-terminal domain of bromodomain protein 4
C-terminal domain of RIG-I
C-terminal general transcription factor TFIIE alpha
C-terminal leucine zipper domain of cyclic nucleotide-gated channels
C-terminal region of aryl-sulfatase
C-terminal region of peptidase_M24
C terminal SARAH domain of Mst1
C-terminal tandem repeated domain in type 4 procollagen
C-terminal topoisomerase domain
C-terminus of bacterial fibrinogen-binding adhesin
C-terminus of histone H2A
CTP synthase N-terminus
C-type lysozyme/alpha-lactalbumin family
CUB domain
CUE domain
Cullin binding
Cullin family
Cullin protein neddylation domain
Cupin-like domain
Cupin superfamily protein
CUT1-like DNA-binding domain of SATB
CutC family
CUT domain
CW-type Zinc Finger
CXCR4 Chemokine receptor N terminal
CXXC zinc finger domain
Cyclic nucleotide-binding domain
Cyclin C-terminal domain
Cyclin, C-terminal domain
Cyclin-dependent kinase 2-associated protein
Cyclin-dependent kinase 5 activator protein
Cyclin-dependent kinase inhibitor
Cyclin-dependent kinase inhibitor 3 (CDKN3)
Cyclin-dependent kinase regulatory subunit
Cyclin, N-terminal domain
Cyclophilin type peptidyl-prolyl cis-trans isomerase/CLD
Cys/Met metabolism PLP-dependent enzyme
Cystatin domain
Cysteine dioxygenase type I
Cysteine-rich secretory protein family
Cystic fibrosis TM conductance regulator (CFTR), regulator domain
Cystine-knot domain
CYTH domain
Cytidine and deoxycytidylate deaminase zinc-binding region
Cytidylyltransferase-like
Cytochrome b5-like Heme/Steroid binding domain
Cytochrome c
Cytochrome P450
Cytokine interleukin-12p40 C-terminus
Cytoplasmic Fragile-X interacting family
Cytosine specific DNA methyltransferase replication foci domain
Cytoskeletal-regulatory complex EF hand
DALR anticodon binding domain
DAN domain
Daxx N-terminal Rassf1C-interacting domain
Dcp1-like decapping family
DEAD/DEAH box helicase
Death domain
Death effector domain
Degradation arginine-rich protein for mis-folding
Dehydrogenase E1 component
Delta-aminolevulinic acid dehydratase
Delta serrate ligand
DENN (AEX-3) domain
Deoxyhypusine synthase
Deoxynucleoside kinase
Dermcidin, antibiotic peptide
Diacylglycerol kinase catalytic domain
Diacylglycerol kinase N-terminus
Diaphanous FH3 Domain
Diaphanous GTPase-binding Domain
Dihydrodipicolinate synthetase family
Dihydrofolate reductase
Dihydroorotate dehydrogenase
Dihydrouridine synthase (Dus)
DIL domain
Dimerisation domain
Dimerisation domain of Male-specific-Lethal 1
Dipeptidyl peptidase IV (DPP IV) N-terminal region
Disintegrin
D-isomer specific 2-hydroxyacid dehydrogenase, catalytic domain
Divergent CRAL/TRIO domain
DIX domain
DJ-1/PfpI family
DM DNA binding domain
DMPK coiled coil domain like
DNA-dependent RNA polymerase
DNA-directed RNA polymerase N-terminal
DNA double-strand break repair and V(D)J recombination protein XRCC4
DNA Fragmentation factor 45kDa, C terminal domain
DNA gyrase B
DNA gyrase/topoisomerase IV, subunit A
DnaJ central domain
DnaJ C terminal domain
DnaJ domain
DNA ligase 3 BRCT domain
DNA ligase IV
DNA ligase N terminus
DNA mismatch repair protein, C-terminal domain
DNA mismatch repair protein Mlh1 C-terminus
DNA / pantothenate metabolism flavoprotein
DNA polymerase alpha/epsilon subunit B
DNA polymerase alpha subunit B N-terminal
DNA Polymerase alpha zinc finger
DNA polymerase beta palm
DNA polymerase beta thumb
DNA polymerase family A
DNA polymerase family B
DNA polymerase family B, exonuclease domain
DNA polymerase subunit Cdc27
DNA repair metallo-beta-lactamase
DNA repair protein REV1 C-terminal domain
DNA replication and checkpoint protein
DNA replication complex GINS protein SLD5 C-terminus
DNA replication factor CDT1 like
DNA/RNA non-specific endonuclease
DNA topoisomerase
Dock homology region 2
DOCK N-terminus
Domain found in Dishevelled, Egl-10, and Pleckstrin (DEP)
Domain found in IF2B/IF5
Domain of Kin17 curved DNA-binding protein
Domain of unknown function (DUF1731)
Domain of unknown function (DUF1866)
Domain of Unknown Function (DUF1907)
Domain of unknown function (DUF1908)
Domain of unknown function (DUF1917)
Domain of unknown function (DUF1968)
Domain of unknown function (DUF3337)
Domain of unknown function (DUF3439)
Domain of unknown function (DUF3452)
Domain of unknown function (DUF3453)
Domain of unknown function (DUF3480)
Domain of unknown function (DUF3513)
Domain of unknown function (DUF3635)
Domain of unknown function (DUF3819)
Domain of unknown function (DUF4414)
Domain of unknown function (DUF4430)
Domain of unknown function (DUF4927)
Domain of unknown function (DUF4976)
Domain of unknown function DUF59
Domain of unknown function (DUF758)
Domain of Unknown Function (DUF902)
Doublecortin
Double-stranded RNA binding motif
Dpy-30 motif
DSBA-like thioredoxin domain
dsDNA Poxvirus
DSS1/SEM1 family
Dual specificity phosphatase, catalytic domain
Dual specificity protein phosphatase, N-terminal half
DUSP domain
dUTPase
DWNN domain
Dynamin central region
Dynamin family
Dynamin GTPase effector domain
Dynein heavy chain and region D6 of dynein motor
Dynein heavy chain, N-terminal region 2
Dynein light chain type 1
E1-E2 ATPase
E2 binding domain
E2 domain of amyloid precursor protein
E2 (early) protein, N terminal
E2F/DP family winged-helix DNA-binding domain
E2F transcription factor CC-MB domain
e3 binding domain
E3 ubiquitin ligase EDD
EAP30/Vps36 family
Early Protein (E6)
Early transcription elongation factor of RNA pol II, NGN section
EB1-like C-terminal motif
EBP50, C-terminal
Ecotin
EF-1 guanine nucleotide exchange domain
EF hand
EF-hand
EF-hand domain
EF-hand domain pair
EGF domain
EGF-like domain
EGFR receptor inhibitor Mig-6
eIF3 subunit 6 N terminal domain
eIF4-gamma/eIF5/eIF2-epsilon
Electron transfer flavoprotein domain
Electron transfer flavoprotein FAD-binding domain
ELM2 domain
Elongation factor G C-terminus
Elongation Factor G, domain II
Endonuclease/Exonuclease/phosphatase family
Endonuclease V
Endoplasmic Reticulum Oxidoreductin 1 (ERO1)
Endoplasmic reticulum protein ERp29, C-terminal domain
Endoribonuclease L-PSP
Endothelin family
Enhancer of rudimentary
Enolase C-terminal domain-like
Enolase, C-terminal TIM barrel domain
Enolase, N-terminal domain
Enoyl-CoA hydratase/isomerase
ENT domain
ENTH domain
Envelope glycoprotein GP120
Ephrin
Ephrin receptor ligand binding domain
Ephrin type-A receptor 2 transmembrane domain
ERAP1-like C-terminal domain
ERCC3/RAD25/XPB C-terminal helicase
ERCC4 domain
eRF1 domain 1
eRF1 domain 3
ERp29, N-terminal domain
Erv1 / Alr family
Erythroid krueppel-like transcription factor, transactivation 1
Erythroid krueppel-like transcription factor, transactivation 2
Erythropoietin receptor, ligand binding
Erythropoietin/thrombopoietin
ESCO1/2 acetyl-transferase
ESCRT-II complex subunit
EspF protein repeat
Est1 DNA/RNA binding domain
Ets-domain
Eukaryotic and archaeal DNA primase, large subunit
Eukaryotic and archaeal DNA primase small subunit
Eukaryotic aspartyl protease
Eukaryotic cobalamin-binding protein
Eukaryotic DNA topoisomerase I, catalytic core
Eukaryotic DNA topoisomerase I, DNA binding fragment
Eukaryotic elongation factor 5A hypusine, DNA-binding OB fold
Eukaryotic glutathione synthase, ATP binding domain
Eukaryotic initiation factor 4E
Eukaryotic phosphomannomutase
Eukaryotic porin
Eukaryotic translation initiation factor 4E binding protein (EIF4EBP)
Eukaryotic-type carbonic anhydrase
EVE domain
Exonuclease
Exosome complex exonuclease RRP4 N-terminal region
Exosome component EXOSC1/CSL4
Exportin 1-like protein
Extracellular link domain
Ezrin/radixin/moesin family
F5/8 type C domain
F-actin binding
F-actin capping protein alpha subunit
FAD binding domain
FAD binding domain in molybdopterin dehydrogenase
FAD binding domain of DNA photolyase
FAD dependent oxidoreductase
FANCL C-terminal domain
FANCM to MHF binding domain
Fanconi Anaemia group E protein FANCE
Fanconi anemia group F protein (FANCF)
Fas apoptotic inhibitory molecule (FAIM1)
Fasciclin domain
F-box associated region
F-box domain
F-box-like
FDF domain
FERM central domain
FERM C-terminal PH-like domain
FERM N-terminal domain
Ferredoxin-fold anticodon binding domain
Ferric reductase NAD binding domain
Ferritin-like domain
Ferrochelatase
Fes/CIP4, and EFC/F-BAR homology domain
FF domain
FG-GAP repeat
FGGY family of carbohydrate kinases, C-terminal domain
FGGY family of carbohydrate kinases, N-terminal domain
FHA domain
Fibrillar collagen C-terminal domain
Fibrillarin
Fibrinogen alpha/beta chain family
Fibrinogen beta and gamma chains, C-terminal globular domain
Fibroblast growth factor
Fibronectin binding repeat
Fibronectin type I domain
Fibronectin type II domain
Fibronectin type III domain
Fic/DOC family
Filamin/ABP280 repeat
Fingers domain of DNA polymerase lambda
FIP domain
First C2 domain of RPGR-interacting protein 1
Fis1 C-terminal tetratricopeptide repeat
Fis1 N-terminal tetratricopeptide repeat
FKBP-type peptidyl-prolyl cis-trans isomerase
Flavin containing amine oxidoreductase
Flavodoxin
Flavodoxin-like fold
flt3 ligand
FLYWCH zinc finger domain
FMN-dependent dehydrogenase
Focal adhesion targeting region
Folate receptor family
Folliculin C-terminal domain
Follistatin/Osteonectin-like EGF domain
FOP N terminal dimerisation domain
Forkhead domain
Formamidopyrimidine-DNA glycosylase H2TH domain
Formamidopyrimidine-DNA glycosylase N-terminal domain
Formin Homology 2 Domain
Formyl transferase
Formyl transferase, C-terminal domain
Frataxin-like domain
Frizzled/Smoothened family membrane region
Fructose-1-6-bisphosphatase
Fructose-bisphosphate aldolase class-I
FTO catalytic domain
FTO C-terminal domain
FtsH Extracellular
FtsJ-like methyltransferase
Fumarase C C-terminus
Fumarylacetoacetate (FAA) hydrolase family
Fumble
Furin-like cysteine rich region
Furin-like repeat, cysteine-rich
FYVE-type zinc finger
FYVE zinc finger
Fz domain
GAF domain
gag gene protein p24 (core nucleocapsid protein)
Galactokinase galactose-binding signature
Galactoside-binding lectin
Gamma-glutamyl cyclotransferase, AIG2-like
Gamma-glutamyltranspeptidase
Gar1/Naf1 RNA binding region
GATA zinc finger
GAT domain
GDNF/GAS1 domain
GDP-fucose protein O-fucosyltransferase
GDP/GTP exchange factor Sec2p
GDP-mannose 4,6 dehydratase
GDSL-like Lipase/Acylhydrolase family
Gelsolin repeat
Gem-associated protein 7 (Gemin7)
Gemin6 protein
Geminin
GGL domain
GHMP kinases C terminal
GHMP kinases N terminal domain
GINS complex protein
Globin
Glucosamine-6-phosphate isomerases/6-phosphogluconolactonase
Glucose-6-phosphate dehydrogenase, C-terminal domain
Glucose-6-phosphate dehydrogenase, NAD binding domain
Glucose / Sorbosone dehydrogenase
Glucosidase II beta subunit-like protein
Glu/Leu/Phe/Val dehydrogenase, dimerisation domain
Glutamate/Leucine/Phenylalanine/Valine dehydrogenase
Glutaminase
Glutamine amidotransferase class-I
Glutamine synthetase, beta-Grasp domain
Glutamine synthetase, catalytic domain
Glutaredoxin
Glutathione peroxidase
Glutathione S-transferase, C-terminal domain
Glutathione S-transferase, N-terminal domain
Glyceraldehyde 3-phosphate dehydrogenase, C-terminal domain
Glyceraldehyde 3-phosphate dehydrogenase, NAD binding domain
Glycine cleavage T-protein C-terminal barrel domain
Glycogen recognition site of AMP-activated protein kinase
Glycolipid transfer protein (GLTP)
Glycophorin A
Glycoprotein hormone
Glycosyl hydrolase family 1
Glycosyl hydrolase family 20, catalytic domain
Glycosyl hydrolase family 20, domain 2
Glycosyl hydrolase family 47
Glycosyl hydrolases family 18
Glycosyl hydrolases family 2
Glycosyl hydrolases family 2, sugar binding domain
Glycosyl hydrolases family 2, TIM barrel domain
Glycosyl hydrolases family 31
Glycosyl hydrolases family 35
Glycosyl hydrolases family 39
Glycosyl transferase family 2
Glycosyltransferase family 29 (sialyltransferase)
Glycosyl transferase family 41
Glycosyltransferase family 43
Glycosyltransferase family 6
Glycosyl transferase family 8
Glycosyl transferase family, a/b domain
Glycosyl transferase family, helical bundle domain
Glyoxalase/Bleomycin resistance protein/Dioxygenase superfamily
Glyoxalase-like domain
Glypican
GMP-PDE, delta subunit
GMP synthase C terminal domain
Golgi phosphoprotein 3 (GPP34)
Gonadotropin hormone receptor transmembrane region
GPCR-Autoproteolysis INducing (GAIN) domain
GPCR proteolysis site, GPS, motif
G-protein alpha subunit
GRAM domain
Granulin
Granulocyte colony-stimulating factor
Granulocyte-macrophage colony-stimulating factor
Grap2 and cyclin-D-interacting
GRASP55/65 PDZ-like domain
GRIP domain
Groucho/TLE N-terminal Q-rich domain
Growth factor receptor domain IV
GTF2I-like repeat
GTPase-activator protein for Ras-like GTPase
GTPase binding
GTP cyclohydrolase I
Gtr1/RagA G protein conserved region
Guanylate-binding protein, C-terminal domain
Guanylate-binding protein, N-terminal domain
Guanylate kinase
Guanylin precursor
GUCT (NUC152) domain
GYF domain
HAD-hyrolase-like
Haemagglutinin-neuraminidase
Haemolysin-III related
Hairy Orange
haloacid dehalogenase-like hydrolase
Haloacid dehalogenase-like hydrolase
Ham1 family
HCaRG protein
HCO3- transporter family
HD domain
HEAT-like repeat
HEAT repeat
HEAT repeats
Heat shock factor binding protein 1
Heavy-metal-associated domain
HEC/Ndc80p family
HECT-domain (ubiquitin-transferase)
Hedgehog amino-terminal signalling domain
Helically-extended SH3 domain
Helicase conserved C-terminal domain
Helix-hairpin-helix domain
Helix-hairpin-helix motif
Helix-loop-helix DNA-binding domain
Helix-turn-helix
HELP motif
Heme oxygenase
Hemopexin
Hepatocyte growth factor-regulated tyrosine kinase substrate
Hepatocyte nuclear factor 1 (HNF-1), N terminus
Hepcidin
HEPN domain
Hepsin, SRCR
Herpesvirus glycoprotein D/GG/GX domain
Heterogeneous nuclear ribonucleoprotein M
Hexokinase
HhH-GPD superfamily base excision DNA repair protein
HIF-1 alpha C terminal transactivation domain
HIN-200/IF120x domain
HIRAN domain
Histidine kinase-, DNA gyrase B-, and HSP90-like ATPase
Histidine phosphatase superfamily (branch 1)
Histidine phosphatase superfamily (branch 2)
Histidyl-tRNA synthetase
Histone acetylation protein
Histone acetyl transferase HAT1 N-terminus
Histone-binding protein RBBP4 or subunit C of CAF1 complex
Histone chaperone Rttp106-like
Histone deacetylase domain
Histone-like transcription factor (CBF/NF-Y) and archaeal histone
Histone methylation protein DOT1
Histone RNA hairpin-binding protein RNA-binding domain
HIT domain
HIT zinc finger
HIUase/Transthyretin family
HMG-box domain
HMG (high mobility group) box
HMG (high mobility group) box 5
HMGL-like
Homeobox domain
Homeobox KN domain
Homeodomain leucine-zipper encoding, Homez
Homeo-prospero domain
Homocysteine S-methyltransferase
Homodimerisation domain of SGTA
Homodimerisation region of STAR domain protein
homogentisate 1,2-dioxygenase
HORMA domain
Hormone receptor domain
HPC2 and ubinuclein domain
HRDC domain
HSCB C-terminal oligomerisation domain
HSF-type DNA-binding
Hsp20/alpha crystallin family
Hsp70 protein
Hsp90 protein
hTAFII28-like protein conserved region
Human growth factor-like EGF
Hus1-like protein
Hyaluronidase
Hydrolytic ATP binding site of dynein motor region D1
Hydroxymethylglutaryl-coenzyme A reductase
Hydroxymethylglutaryl-coenzyme A synthase C terminal
Hydroxymethylglutaryl-coenzyme A synthase N terminal
Hypothetical methyltransferase
IBR domain, a half RING-finger domain
ICOS V-set domain
ICP0-binding domain of Ubiquitin-specific protease 7
Ig-like C2-type domain
Ig-like domain from next to BRCA1 gene
Ig-like domain on T-cell surface glycoprotein CD3 epsilon chain
I-kappa-kinase-beta NEMO binding domain
IKI3 family
I/LWEQ domain
Immunoglobulin C1-set domain
Immunoglobulin C2-set domain
Immunoglobulin domain
Immunoglobulin I-set domain
Immunoglobulin V-set domain
Immunoreceptor tyrosine-based activation motif
impB/mucB/samB family
impB/mucB/samB family C-terminal domain
IMP dehydrogenase / GMP reductase domain
Importin beta binding domain
Importin-beta N-terminal domain
IMS family HHH motif
Indoleamine 2,3-dioxygenase
Inhibitor of Apoptosis domain
Inhibitor of growth proteins N-terminal histone-binding
Initiation factor 2 subunit family
Inner centromere protein, ARK binding region
Inositol 1, 3, 4-trisphosphate 5/6-kinase
Inositol 1,4,5-trisphosphate/ryanodine receptor
Inositol monophosphatase family
Inositol polyphosphate 5-phosphatase clathrin binding domain
Inositol polyphosphate kinase
Insulinase (Peptidase family M16)
Insulin/IGF/Relaxin family
Insulin-like growth factor binding protein
Integral peroxisomal membrane peroxin
Integrin alpha
Integrin alpha cytoplasmic region
Integrin, beta chain
Integrin beta cytoplasmic domain
Integrin beta tail domain
Intercellular adhesion molecule (ICAM), N-terminal domain
Interferon alpha/beta domain
Interferon-alpha/beta receptor, fibronectin type III
Interferon gamma receptor (IFNGR1)
Interferon-induced 6-16 family
Interferon-regulatory factor 3
Interferon regulatory factor transcription factor
Interleukin 10
Interleukin 11
Interleukin-1 / 18
Interleukin-13
Interleukin 15
Interleukin-17
Interleukin 17 receptor D
Interleukin-17 receptor, fibronectin-III-like domain 1
Interleukin 2
Interleukin 22 IL-10-related T-cell-derived-inducible factor
Interleukin 23 subunit alpha
Interleukin-28A
Interleukin-3
Interleukin 33
Interleukin 34
Interleukin 4
Interleukin-4 receptor alpha chain, N-terminal
Interleukin 5
Interleukin-6/G-CSF/MGF family
Interleukin-6 receptor alpha chain, binding
Interleukin 7/9 family
Intermediate filament protein
Intron-binding protein aquarius N-terminus
Inward rectifier potassium channel
Ion channel
IPT/TIG domain
IQ calmodulin-binding motif
Iron-binding zinc finger CDGSH type
Iron/manganese superoxide dismutases, alpha-hairpin domain
Iron/manganese superoxide dismutases, C-terminal domain
IRSp53/MIM homology domain
Isocitrate/isopropylmalate dehydrogenase
JAB1/Mov34/MPN/PAD-1 ubiquitin protease
Jacalin-like lectin domain
Janus/Ocnus family (Ocnus)
JmjC domain, hydroxylase
jmjN domain
JNK-interacting protein  leucine zipper II
Josephin
Jumping translocation breakpoint protein (JTB)
Kazal-type serine protease inhibitor domain
KCNQ voltage-gated potassium channel
Kelch motif
KH domain
KIAA1045 RING finger
Kinase associated domain 1
Kinase binding protein CGI-121
Kinase non-catalytic C-lobe domain
Kinesin-associated
Kinesin motor domain
Kinetochore component CENP-S
KIX-binding domain of forkhead box O, CR2
KIX domain
KOW motif
KR domain
Kringle domain
Ku70/Ku80 beta-barrel domain
Ku70/Ku80 C-terminal arm
Ku70/Ku80 N-terminal alpha/beta domain
Ku C terminal domain like
Kunitz/Bovine pancreatic trypsin inhibitor domain
L1 transposable element
L27_1
L27_2
L27 domain
L27_N
lactate/malate dehydrogenase, alpha/beta C-terminal domain
lactate/malate dehydrogenase, NAD binding domain
La domain
LAG1, DNA binding
Lamin-B receptor of TUDOR domain
Laminin B (Domain IV)
Laminin EGF domain
Laminin G domain
Laminin N-terminal (Domain VI)
Lamin Tail Domain
Lanthionine synthetase C-like protein
Latexin
LBP / BPI / CETP family, C-terminal domain
LBP / BPI / CETP family, N-terminal domain
LCCL domain
Lecithin
Lecithin retinol acyltransferase
Lectin C-type domain
Legume-like lectin family
LEM domain
Lens epithelium-derived growth factor (LEDGF)
Leo1-like protein
Leptin
Leucine carboxyl methyltransferase
Leucine rich repeat
Leucine-rich repeat
Leucine Rich repeat
Leucine Rich Repeat
Leucine rich repeat C-terminal domain
Leucine rich repeat N-terminal domain
Leucine Rich repeats (2 copies)
Leucine rich repeats (6 copies)
Leucine zipper of domain CC2 of NEMO, NF-kappa-B essential modulator
Leukotriene A4 hydrolase, C-terminal
LIF / OSM family
Ligand-binding domain of nuclear hormone receptor
Ligated ion channel L-glutamate- and glycine-binding site
LIM domain
Limkain b1
linker between RRM2 and RRM3 domains in RBM39 protein
linker histone H1 and H5 family
Lipase
Lipocalin / cytosolic fatty-acid binding protein family
Lipocalin-like domain
Lipoxygenase
LisH
Liver-expressed antimicrobial peptide 2 precursor (LEAP-2)
LNR domain
Lon protease (S16) C-terminal proteolytic domain
Low-density lipoprotein receptor domain class A
Low-density lipoprotein receptor repeat class B
Low molecular weight phosphotyrosine protein phosphatase
LPS binding domain of CAP18 (C terminal)
LRR adjacent
LSM domain
Lung surfactant protein D coiled-coil trimerisation
Lyase
Lysine methyltransferase
LysM domain
Lysophospholipase catalytic domain
Lysosome-associated membrane glycoprotein (Lamp)
MA3 domain
Mab-21 protein
MAC/Perforin domain
Macro domain
Macrophage colony stimulating factor-1 (CSF-1)
Macrophage migration inhibitory factor (MIF)
Mad1 and Cdc20-bound-Mad2 binding
Mad3/BUB1 homology region 1
Maf1 regulator
Maf-like protein
MAGE family
Mago nashi protein
Major intrinsic protein
Malic enzyme, NAD binding domain
Malic enzyme, N-terminal domain
Malonyl-CoA decarboxylase (MCD)
MAM domain, meprin/A5/mu
MamL-1 domain
Mammalian defensin
Man1-Src1p-C-terminal domain
Mandelate racemase / muconate lactonizing enzyme, N-terminal domain
MANEC domain
MaoC like domain
MAPEG family
MATH domain
Matrixin
Mature-T-Cell Proliferation I type
mbt repeat
Mediator complex subunit 25 PTOV activation and synapsin 2
Membrane-associated apoptosis protein
Membrane dipeptidase (Peptidase family M19)
Memo-like protein
Menin
Metallo-beta-lactamase superfamily
Metallo-peptidase family M12
Metallopeptidase family M24
Methyl-CpG binding domain
Methylmalonic aciduria and homocystinuria type C family
Methylmalonyl-CoA mutase
Methylpurine-DNA glycosylase (MPG)
Methyltransferase domain
MG2 domain
MGS-like domain
MH1 domain
MH2 domain
MHC-I family domain
Mib_herc2
Microtubule associated protein (MAP65/ASE1 family)
Microtubule-binding protein MIP-T3
Microtubule-binding stalk of dynein motor
Middle or third domain of peptidase_M16
Mid domain of argonaute
MIF4G domain
MIF4G like
MIR domain
MIT (microtubule interacting and transport) domain
Mitochondrial 28S ribosomal protein S30 (PDCD9)
Mitochondrial 28S ribosomal protein S32
Mitochondrial 39-S ribosomal protein L47 (MRP-L47)
Mitochondrial branched-chain alpha-ketoacid dehydrogenase kinase
Mitochondrial glycoprotein
Mitochondrial ribosomal protein L27
Mitochondrial ribosomal protein L28
Mitochondrial ribosomal protein L51 / S25 / CI-B8 domain
Mitochondrial ribosomal subunit
Mitosis protein DIM1
Mitotic checkpoint protein
MIZ/SP-RING zinc finger
ML domain
Mo25-like
MoaE protein
Mob1/phocein family
Molybdopterin-binding domain of aldehyde dehydrogenase
Mono-functional DNA-alkylating methyl methanesulfonate N-term
MORN repeat
Mouse development and cellular proliferation protein Cullin-7
MOZ/SAS family
Mre11 DNA-binding presumed domain
MRG
mRNA capping enzyme
mRNA capping enzyme, catalytic domain
mRNA capping enzyme, C-terminal domain
mRNA-decapping enzyme C-terminus
MSP (Major sperm protein) domain
mTERF
Multicopper oxidase
MutS domain I
MutS domain II
MutS domain III
MutS domain V
Myb-like DNA-binding domain
Myelin basic protein
MYM-type Zinc finger with FCS sequence motif
MYND finger
Myo-inositol oxygenase
Myosin head (motor domain)
Myosin N-terminal SH3-like domain
Myosin tail
Myotubularin-like phosphatase domain
Myristoyl-CoA
MyTH4 domain
NAB conserved region 2 (NCD2)
N-acetylmuramoyl-L-alanine amidase
N-acetyltransferase
NAD binding domain of 6-phosphogluconate dehydrogenase
NAD-binding of NADP-dependent 3-hydroxyisobutyrate dehydrogenase
NAD dependent epimerase/dehydratase family
NAD-dependent glycerol-3-phosphate dehydrogenase C-terminus
NAD-dependent glycerol-3-phosphate dehydrogenase N-terminus
NAD(P)-binding Rossmann-like domain
NAD(P)H-binding
NADP oxidoreductase coenzyme F420-dependent
NAD(P) transhydrogenase beta subunit
NAD synthase
NAT, N-acetyltransferase, of N-acetylglutamate synthase
NB-ARC domain
Nbl1 / Borealin N terminal
Ndr family
Negative factor, (F-Protein) or Nef
Neogenin C-terminus
Nerve growth factor family
Neuralized
Neurotransmitter-gated ion-channel ligand binding domain
Neurotransmitter-gated ion-channel transmembrane region
Neutral/alkaline non-lysosomal ceramidase, N-terminal
NF-kappa-B essential modulator NEMO
NHR1 homology to TAF
NHR2 domain like
Nicastrin
Nicotinate phosphoribosyltransferase (NAPRTase) family
Niemann-Pick C1 N terminus
NifU-like domain
Nitric oxide synthase, oxygenase domain
Nitroreductase family
NLI interacting factor-like phosphatase
NmrA-like family
NNMT/PNMT/TEMT family
Noggin
Non-repetitive/WGA-negative nucleoporin C-terminal
NOPS (NUC059) domain
NOT2 / NOT3 / NOT5 family
NOTCH protein
N-terminal barrel of NtMGAM and CtMGAM, maltase-glucoamylase
N-terminal CTNNB1 binding
N-terminal domain of argonaute
N-terminal domain of E3 ubiquitin-protein ligase HECW1 and 2
N-terminal domain of galactosyltransferase
N-terminal domain of oxidoreductase
N-terminal domain of ribose phosphate pyrophosphokinase
N-terminal glutamine amidase
N-terminal half of MaoC dehydratase
N-terminal of ubiquitin carboxyl-terminal hydrolase 37
N-terminal region of glycosyl transferase group 7
N terminus of Notch ligand
NTPase
Nuclear envelope localisation domain
Nuclear factor hnRNPA1
Nuclear pore protein 84 / 107
Nuclear receptor coactivator
Nuclear transport factor 2 (NTF2) domain
Nucleocytoplasmic shuttling protein for mRNA cap-binding EIF4E
Nucleophosmin C-terminal domain
Nucleoplasmin
Nucleoporin autopeptidase
Nucleoside 2-deoxyribosyltransferase
Nucleoside diphosphate kinase
Nucleosome assembly protein (NAP)
Nucleotide hydrolase
Nucleotidyltransferase domain
NUDE protein, C-terminal conserved region
NUDIX domain
NUDIX, or N-terminal NPxY motif-rich,  region of KRIT
Nuf2 family
Nup358/RanBP2 E3 ligase domain
Nup53/35/40-type RNA recognition motif
OB-fold nucleic acid binding domain
O-Glycosyl hydrolase family 30
Olfactomedin-like domain
O-methyltransferase
O-phosphoseryl-tRNA(Sec) selenium transferase, SepSecS
Origin recognition complex subunit 2
Ornithine cyclodeaminase/mu-crystallin family
Ornithine decarboxylase antizyme
Orotidine 5'-phosphate decarboxylase / HUMPS family
OST-HTH/LOTUS domain
OTU-like cysteine protease
Oxidative-stress-responsive kinase 1 C terminal
Oxidoreductase FAD-binding domain
Oxidoreductase family, NAD-binding Rossmann fold
Oxidoreductase NAD-binding domain
Oxoglutarate and iron-dependent oxygenase degradation C-term
Oxygenase domain of the 2OGFeDO superfamily
p190-A and -B Rho GAPs FF domain
P21-Rho-binding domain
p25-alpha
P53 DNA-binding domain
P53 tetramerisation motif
P53 transactivation motif
PAAD/DAPIN/Pyrin domain
PA domain
PADR1 (NUC008) domain
Paf1
Paired amphipathic helix repeat
'Paired box' domain
Palmitoyl protein thioesterase
Pancreatic hormone peptide
Pancreatic ribonuclease
PAN domain
Papain family cysteine protease
Parathyroid hormone family
ParB-like nuclease domain
Partner and localizer of BRCA2 WD40 domain
PAS domain
PAS fold
PAXX, PAralog of XRCC4 and XLF, also called C9orf142
PAZ domain
PB1 domain
PCI domain
PCNA-associated factor
PDGF/VEGF domain
PDZ domain
PDZ domain (Also known as DHR or GLGF)
Pectinacetylesterase
Pellino
Pentapeptide repeats (9 copies)
Pentaxin family
Peptidase C13 family
Peptidase C1-like family
Peptidase C26
Peptidase C65 Otubain
Peptidase family C101
Peptidase family C54
Peptidase family M1
Peptidase family M13
Peptidase family M20/M25/M40
Peptidase family M28
Peptidase family M3
Peptidase family M48
Peptidase family M49
Peptidase inhibitor clitocypin
Peptidase M16C associated
Peptidase M16 inactive domain
Peptide hormone
Peptidyl-tRNA hydrolase PTH2
Peroxin-3
Pex19 protein family
pfkB family carbohydrate kinase
PFU (PLAA family ubiquitin binding)
Phage lysozyme
PHAX RNA-binding domain
PHD-finger
PHD finger protein 12 MRG binding domain
PHD-like zinc-binding domain
PH domain
PH domain associated with Beige/BEACH
PHD-zinc-finger like domain
Phenylalanine zipper
Phi29 scaffolding protein
Phorbol esters/diacylglycerol binding domain (C1 domain)
Phosducin
Phosphatidylethanolamine-binding protein
Phosphatidylinositol 3- and 4-kinase
Phosphatidylinositol 3-kinase regulatory subunit P85 inter-SH2 domain
Phosphatidylinositol-4-phosphate 5-Kinase
Phosphatidylinositol-specific phospholipase C, X domain
Phosphatidylinositol-specific phospholipase C, Y domain
Phosphatidylinositol transfer protein
Phosphoenolpyruvate carboxykinase
Phosphofructokinase
Phosphoglucose isomerase
Phosphoglycerate kinase
Phosphoinositide 3-kinase C2
Phosphoinositide 3-kinase family, accessory domain (PIK domain)
Phosphoinositide-specific phospholipase C, efhand-like
Phospholamban
Phospholipase A2
Phospholipase/Carboxylesterase
Phosphomevalonate kinase
Phosphoribosylglycinamide synthetase, ATP-grasp (A) domain
Phosphoribosylglycinamide synthetase, C domain
Phosphoribosylglycinamide synthetase, N domain
Phosphoribosyl synthetase-associated domain
Phosphoribosyl transferase domain
Phosphoribulokinase / Uridine kinase family
Phosphorylase superfamily
Phosphotyrosine-binding domain
Phosphotyrosine interaction domain (PTB/PID)
Phosphotyrosyl phosphate activator (PTPA) protein
PHR domain
Phytanoyl-CoA dioxygenase (PhyH)
PI31 proteasome regulator N-terminal
PI3-kinase family, p85-binding domain
PI3-kinase family, ras-binding domain
PIN domain
PINIT domain
Pirin
Pirin C-terminal cupin domain
PITH domain
Piwi domain
PKD domain
pKID domain
Platelet-activating factor acetylhydrolase, isoform II
Platelet-derived growth factor, N terminal region
PLAT/LH2 domain
PLC-beta C terminal
Pleckstrin homology domain
Plectin repeat
Plectin/S10 domain
Plexin cytoplasmic RasGAP domain
Plexin repeat
P-loop containing dynein motor region D3
P-loop containing dynein motor region D4
Plus-3 domain
POLO box duplicated region
Poly-adenylate binding protein, unique domain
Poly(ADP-ribose) polymerase and DNA-Ligase Zn-finger region
Poly(ADP-ribose) polymerase catalytic domain
Poly(ADP-ribose) polymerase, regulatory domain
Poly(A) polymerase central domain
Poly A polymerase head domain
Poly(A) polymerase predicted RNA binding domain
Polyomavirus large T antigen C-terminus
Polypeptide deformylase
Polyprenyl synthetase
Polyribonucleotide nucleotidyltransferase, RNA binding domain
Porphobilinogen deaminase, C-terminal domain
Porphobilinogen deaminase, dipyromethane cofactor binding domain
Potassium voltage-gated channel
POU domain, class 2, associating factor 1
PPIC-type PPIASE domain
PPP5 TPR repeat region
PPPDE putative peptidase domain
pre-mRNA processing factor 4 (PRP4) like
Prenyltransferase and squalene oxidase repeat
Pre-pro-megakaryocyte potentiating factor precursor (Mesothelin)
pre-RNA processing PIH1/Nop17
Presenilin
Presenilin enhancer-2 subunit of gamma secretase
Pre-SET motif
Pre-T-cell antigen receptor
Prion/Doppel alpha-helical domain
PRMT5 arginine-N-methyltransferase
Pro-apoptotic Bcl-2 protein, BAD
Probable molybdopterin binding domain
Probable RNA and SrmB- binding site of polymerase A
PROCT (NUC072) domain
Profilin
Pro-kumamolisin, activation domain
Proliferating cell nuclear antigen, C-terminal domain
Proliferating cell nuclear antigen, N-terminal domain
Proline-rich nuclear receptor coactivator
Prolyl 4-Hydroxylase alpha-subunit, N-terminal region
Prolyl oligopeptidase family
Prolyl oligopeptidase, N-terminal beta-propeller domain
Proprotein convertase P-domain
Proteasome activator pa28 alpha subunit
Proteasome activator pa28 beta subunit
Proteasome assembly chaperone 3
Proteasome complex subunit Rpn13 ubiquitin receptor
Proteasome subunit
Proteasome subunit A N-terminal signature
Protein-arginine deiminase (PAD)
Protein-arginine deiminase (PAD) middle domain
Protein-arginine deiminase (PAD) N-terminal domain
Protein kinase C terminal domain
Protein kinase domain
Protein-L-isoaspartate(D-aspartate) O-methyltransferase (PCMT)
Protein of unknown function (DUF1241)
Protein of unknown function (DUF1394)
Protein of unknown function (DUF1395)
Protein of unknown function (DUF1649)
Protein of unknown function (DUF1669)
Protein of unknown function (DUF2464)
Protein of unknown function (DUF3583)
Protein of unknown function (DUF3588)
Protein of unknown function (DUF3591)
Protein of unknown function (DUF498/DUF598)
Protein of unknown function (DUF727)
Protein of unknown function (DUF775)
Protein of unknown function (DUF890)
Protein of unknown function (DUF933)
Protein of unknown function (DUF971)
Protein phosphatase 2A regulatory B subunit (B56 family)
Protein phosphatase 2C
Protein prenyltransferase alpha subunit repeat
Protein serine/threonine phosphatase 2C, C-terminal domain
Protein tyrosine kinase
Protein-tyrosine phosphatase
Protein-tyrosine phosphatase receptor IA-2
Prothymosin/parathymosin family
PRP8 domain IV core
PTB domain (IRS-1 type)
Pterin binding enzyme
PTHB1 N-terminus
PTN/MK heparin-binding protein family, N-terminal domain
PUA domain
PUB domain
PUL domain
Pumilio-family RNA binding repeat
Putative adherens-junction anchoring region of AbLIM
Putative esterase
Putative golgin subfamily A member 2-like protein 5
Putative GTPase activating protein for Arf
Putative methyltransferase
Putative peptidoglycan binding domain
Putative RNA methyltransferase
Putative tRNA binding domain
Putative zinc finger in N-recognin (UBR box)
PWI domain
PWWP domain
PX domain
Pyridine nucleotide-disulphide oxidoreductase
Pyridine nucleotide-disulphide oxidoreductase, dimerisation domain
Pyridoxal-dependent decarboxylase conserved domain
Pyridoxal-dependent decarboxylase, C-terminal sheet domain
Pyridoxal-dependent decarboxylase, pyridoxal binding domain
Pyridoxal-phosphate dependent enzyme
Pyridoxamine 5'-phosphate oxidase
Pyridoxine 5'-phosphate oxidase C-terminal dimerisation region
Pyrimidine 5'-nucleotidase (UMPH-1)
Pyrimidine nucleoside phosphorylase C-terminal domain
Pyrroline-5-carboxylate reductase dimerisation
Pyruvate kinase, alpha/beta domain
Pyruvate kinase, barrel domain
Qua1 domain
Quinolinate phosphoribosyl transferase, N-terminal domain
R3H domain
Rabaptin-like protein
Rab binding domain
Rabenosyn Rab binding domain
Rab-GTPase-TBC domain
Rad51
Rad52/22 family double-strand break repair protein
Rad9
Raf-like Ras-binding domain
RanBP1 domain
RanGAP1 C-terminal domain
Rapamycin binding domain
Rap/ran-GAP
Ras association (RalGDS/AF-6) domain
Ras family
RasGEF domain
RasGEF N-terminal motif
Ras of Complex, Roc, domain of DAPkinase
RAWUL domain RING finger- and  WD40-associated ubiquitin-like
Rb C-terminal domain
Rdx family
Receptor activity modifying family
Receptor family ligand binding region
Receptor L domain
RecQ mediated genome instability protein
Recq-mediated genome instability protein 1, C-terminal OB-fold
RecQ-mediated genome instability protein 2
RecQ zinc-binding
Redoxin
Regulated-SNARE-like domain
Regulator of chromosome condensation (RCC1) repeat
Regulator of G protein signaling domain
Regulator of G protein signalling-like domain
Regulator of Ty1 transposition protein 107 BRCT domain
Regulatory factor X-associated C-terminal binding domain
Regulatory region of Na+/H+ exchanger NHE binds to calmodulin
Regulatory subunit of type II PKA R-subunit
Rel homology dimerisation domain
Rel homology DNA-binding domain
Repair protein Rad1/Rec1/Rad17
Repeat domain in Vibrio, Colwellia, Bradyrhizobium and Shewanella
Repeat of unknown function (DUF1126)
Replication factor-A C terminal domain
Replication factor-A protein 1, N-terminal domain
Replication factor A protein 3
Replication protein A C terminal
Replication protein A OB domain
Reprolysin (M12B) family zinc metalloprotease
Repulsive guidance molecule (RGM) N-terminus
Retinal cGMP phosphodiesterase, gamma subunit
Retinoblastoma-associated protein A domain
Retinoblastoma-associated protein B domain
RFX DNA-binding domain
Rho Binding
Rhodanese-like domain
RhoGAP domain
RhoGEF domain
RHO protein GDP dissociation inhibitor
Ribonuclease 2-5A
Ribonuclease H2 non-catalytic subunit (Ylr154p-like)
Ribonuclease HII
Ribonuclease III domain
Ribonuclease T2 family
Ribonucleotide reductase, all-alpha domain
Ribonucleotide reductase, barrel domain
Ribonucleotide reductase, small chain
Ribosomal family S4e
Ribosomal L18p/L5e family
Ribosomal L32p protein family
ribosomal L5P family C-terminus
Ribosomal prokaryotic L21 protein
Ribosomal protein L10
Ribosomal protein L11 methyltransferase (PrmA)
Ribosomal protein L11, N-terminal domain
Ribosomal protein L11, RNA binding domain
Ribosomal protein L13
Ribosomal protein L14p/L23e
Ribosomal protein L16p/L10e
Ribosomal protein L17
Ribosomal protein L18e/L15
Ribosomal protein L20
Ribosomal protein L3
Ribosomal protein L33
Ribosomal protein L34
Ribosomal protein L35
Ribosomal protein L36
Ribosomal protein L4/L1 family
Ribosomal protein L5
Ribosomal protein L6
Ribosomal protein L7Ae/L30e/S12e/Gadd45 family
Ribosomal protein L9, N-terminal domain
Ribosomal protein S10p/S20e
Ribosomal protein S12/S23
Ribosomal protein S13/S18
Ribosomal protein S14p/S29e
Ribosomal protein S17
Ribosomal protein S19e
Ribosomal protein S2
Ribosomal protein S21e
Ribosomal protein S24e
Ribosomal protein S26e
Ribosomal protein S27
Ribosomal protein S27a
Ribosomal protein S28e
Ribosomal protein S30
Ribosomal protein S3, C-terminal domain
Ribosomal protein S5, C-terminal domain
Ribosomal protein S5, N-terminal domain
Ribosomal protein S6e
Ribosomal protein S7e
Ribosomal protein S7p/S5e
Ribosomal protein S8
Ribosomal protein S8e
Ribosomal protein S9/S16
Ribosomal Proteins L2, C-terminal domain
Ribosomal Proteins L2, RNA binding domain
Ribosomal RNA adenine dimethylase
Ribosomal S17
Ribosomal_S17 N-terminal
Ribosomal S3Ae family
Ribosomal subunit 39S
Ribosome-binding factor A
Ribulose-phosphate 3 epimerase family
Ricin-type beta-trefoil lectin domain
RIH domain
RII binding domain
Ring finger domain
RING-H2 zinc finger
RING-like domain
RING-type zinc-finger
RING/Ubox like zinc-binding domain
RING-variant domain
RINT-1 / TIP-1 family
RIO1 family
RmlD substrate binding domain
RNA binding activity-knot of a chromodomain
RNA binding domain
RNA binding motif
RNA-binding signal recognition particle 68
RNA cap guanine-N2 methyltransferase
RNA helicase (UPF2 interacting domain)
RNA polymerase I-associated factor PAF67
RNA polymerase II-binding domain.
RNA polymerase II elongation factor ELL
RNA polymerase III subunit RPC82
RNA polymerase III subunit RPC82 helix-turn-helix domain
RNA polymerase Rpb4
RNA polymerase Rpb8
RNA polymerase Rpc34 subunit
RNA recognition motif
RNA recognition motif (a.k.a. RRM, RBD, or RNP domain)
RNA recognition motif. (a.k.a. RRM, RBD, or RNP domain)
RNase H
Roadblock/LC7 domain
ROK family
RQC domain
RS4NT (NUC023) domain
RTP801 C-terminal region
Rubisco LSMT substrate-binding
RUN domain
Runt domain
RWD domain
S-100/ICaBP type calcium binding domain
S1 RNA binding domain
S25 ribosomal protein
S4 domain
Sad1 / UNC-like C-terminal
S-adenosyl-L-homocysteine hydrolase
S-adenosyl-L-homocysteine hydrolase, NAD binding domain
S-adenosylmethionine synthetase, central domain
S-adenosylmethionine synthetase, C-terminal domain
S-adenosylmethionine synthetase, N-terminal domain
SAF domain
SAICAR synthetase
SAM domain (Sterile alpha motif)
SAMP Motif
SAND domain
SAP30 zinc-finger
SAP domain
SAPK-interacting protein 1 (Sin1), Pleckstrin-homology
Saposin-like type B, region 1
Saposin-like type B, region 2
SBDS protein C-terminal domain
SCA7, zinc-binding domain
Scaffold protein Nfu/NifU N terminal
SCAN domain
Scavenger mRNA decapping enzyme C-term binding
Scavenger receptor cysteine-rich domain
Scd6-like Sm domain
Sclerostin (SOST)
SCO1/SenC
SCP-2 sterol transfer family
Sec1 family
Sec23/Sec24 beta-sandwich domain
Sec23/Sec24 helical domain
Sec23/Sec24 trunk domain
Sec23/Sec24 zinc finger
Sec63 Brl domain
Sec7 domain
Second Mitochondria-derived Activator of Caspases
Secreted protein acidic and rich in cysteine Ca binding region
SEFIR domain
Sema domain
Seminal vesicle autoantigen (SVA)
Sen15 protein
SEP domain
Septin
Serine aminopeptidase, S33
Serine carboxypeptidase
Serine carboxypeptidase S28
Serine hydrolase
Serine hydroxymethyltransferase
Serine rich protein interaction domain
Serine-threonine protein phosphatase N-terminal domain
Serpin (serine protease inhibitor)
Serum albumin family
Serum amyloid A protein
Seryl-tRNA synthetase N-terminal domain
SET domain
Seven in absentia protein family
SGF29 tudor-like domain
SH2 domain
SH3-binding, glutamic acid-rich protein
SH3 domain
SH3 terminal domain of 2nd SH3 on Neutrophil cytosol factor 1
Shal-type voltage-gated potassium channels
Sharpin PH domain
Shelterin complex subunit, TPP1/ACD
short chain dehydrogenase
Shwachman-Bodian-Diamond syndrome (SBDS) protein
Signal peptide binding domain
Signal recognition particle 14kD protein
Signal recognition particle 9 kDa protein (SRP9)
Signal recognition particle, alpha subunit, N-terminal
Signal transducer and activator of transcription 2 C terminal
Sin3 associated polypeptide p18 (SAP18)
Single-strand binding protein family
Sir2 family
SIS domain
SKI/SNO/DAC family
Skp1 family, dimerisation domain
Skp1 family, tetramerisation domain
Slow voltage-gated potassium channel
Smad anchor for receptor activation (SARA)
Small cytokines (intecrine/chemokine), interleukin-8 like
Smg-4/UPF3 family
SMP-30/Gluconolaconase/LRE-like region
Smr domain
Snare region anchored in the vesicle membrane C-terminus
Snf7
snoRNA binding domain, fibrillarin
Snurportin1
SOCS box
Sodium/hydrogen exchanger family
Somatomedin B domain
Somatotropin hormone family
Sortilin, neurotensin receptor 3,
Sortilin, neurotensin receptor 3, C-terminal
SOUL heme-binding protein
Spc24 subunit of Ndc80
Spc97 / Spc98 family
Spectrin repeat
Spermine/spermidine synthase
Spindle and kinetochore-associated protein 2
Spin/Ssty Family
Splicing factor 1 helix-hairpin domain
Splicing factor 3B subunit 1
Splicing factor SF3a60 binding domain
SPOC domain
Spondin_N
SpoU rRNA Methylase family
SPRY-associated domain
SPRY domain
SPT2 chromatin protein
Spt4/RpoE2 zinc finger
Squalene-hopene cyclase C-terminal domain
Squalene-hopene cyclase N-terminal domain
Squalene/phytoene synthase
SRF-type transcription factor (DNA-binding and dimerisation domain)
SRI (Set2 Rpb1 interacting) domain
SRP19 protein
SRP54-type protein, GTPase domain
ssDNA-binding domain of telomere protection protein
Ssu72-like protein
STAG domain
Stannin transmembrane
Stannin unstructured linker
Staphylococcal nuclease homologue
Staphylococcal/Streptococcal toxin, OB-fold domain
Staphylococcus aureus coagulase
Starch binding domain
START domain
STAT1 TAZ2 binding domain
STAT protein, all-alpha domain
STAT protein, DNA binding domain
STAT protein, protein interaction domain
Staufen C-terminal domain
Stem cell factor
Sterile alpha motif (SAM)/Pointed domain
Steroid receptor coactivator
Steroid receptor RNA activator (SRA1)
STIM1 Orai1-activating region
Striatin family
Structure-specific recognition protein (SSRP1)
Subtilase family
Succinylglutamate desuccinylase / Aspartoacylase family
Sugar (and other) transporter
Sulfatase
Sulfatase-modifying factor enzyme 1
Sulfotransferase domain
Sulfotransferase family
SUMO-activating enzyme subunit 2 C-terminus
Suppressor of Fused Gli/Ci N terminal binding domain
Suppressor of fused protein (SUFU)
Surp module
Survival motor neuron protein (SMN)
Survival motor neuron (SMN) interacting protein 1 (SIP1)
Sushi repeat (SCR repeat)
SWIB/MDM2 domain
SWIRM domain
Sybindin-like family
Synapsin, ATP binding domain
Synapsin, N-terminal domain
Synaptobrevin
Synaptotagmin-like mitochondrial-lipid-binding domain
Synphilin-1 alpha-Synuclein-binding domain
Syntaxin
Syntaxin 6, N-terminal
Syntaxin-like protein
Synuclein
TACI, cysteine-rich domain
TAFII55 protein conserved region
Tandem tudor domain within UHRF1
TAP42-like family
Tap, RNA-binding
TatD related DNase
Tau and MAP protein, tubulin-binding repeat
Taurine catabolism dioxygenase TauD, TfdA family
TAZ zinc finger
TB domain
T-box
Tc5 transposase DNA-binding domain
T-cell surface glycoprotein CD3 delta chain
T-cell surface glycoprotein CD3 zeta chain
TCL1/MTCP1 family
TCP-1/cpn60 chaperonin family
TEA/ATTS domain family
Telethonin protein
Telomerase activating protein Est1
Telomere repeat binding factor (TRF)
Telomeric single stranded DNA binding POT1/CDC13
Tetrahydrofolate dehydrogenase/cyclohydrolase, catalytic domain
Tetrahydrofolate dehydrogenase/cyclohydrolase, NAD(P)-binding domain
Tetratricopeptide repeat
Tetratricopeptide repeat protein 5 OB fold domain
TFIIB zinc-binding
TFIIE beta subunit core domain
TFIIH p62 subunit, N-terminal domain
TGF-beta propeptide
TGS domain
THAP domain
The ARF-like 2 binding protein BART
Thg1 C terminal domain
Thiamin pyrophosphokinase, catalytic domain
Thiamin pyrophosphokinase, vitamin B1 binding domain
ThiF family
Thioesterase superfamily
Thiolase, C-terminal domain
Thiolase, N-terminal domain
Thiopurine S-methyltransferase (TPMT)
Thioredoxin
Thioredoxin-like
Thioredoxin-like domain
Thrombomodulin like fifth domain, EGF-like
Thrombospondin C-terminal region
Thrombospondin type 1 domain
Thrombospondin type 3 repeat
THUMP domain
Thymidine kinase
Thymidylate kinase
Thymidylate synthase
Thymopoietin protein
Thymosin beta-4 family
Thyroglobulin type-1 repeat
Tie-2 Ig-like domain 1
Tim10/DDP family zinc finger
Tim44-like domain
Timeless protein C terminal region
TIP49 C-terminus
TIR domain
Tissue factor
Tissue inhibitor of metalloproteinase
Titin Z
TNFR/NGFR cysteine-rich region
TNF(Tumour Necrosis Factor) family
TOBE domain
Topoisomerase II-associated protein PAT1
Toprim domain
Touch receptor neuron protein Mec-17
TPR repeat
TRADD, N-terminal domain
TRAF-like zinc-finger
TRAF-type zinc finger
Transaldolase
Transcriptional Coactivator p15 (PC4)
Transcriptional regulator, SIX1, N-terminal SD domain
Transcription factor COE1 DNA-binding domain
Transcription factor COE1 helix-loop-helix domain
Transcription factor DP
Transcription factor e(y)2
Transcription factor IIA, alpha/beta subunit
Transcription factor S-II (TFIIS)
Transcription factor S-II (TFIIS), central domain
Transcription factor TFIIB repeat
Transcription factor TFIID (or TATA-binding protein, TBP)
Transcription factor TFIIH complex subunit Tfb5
Transcription initiation factor IIA, gamma subunit, helical domain
Transcription initiation factor IID, 18kD subunit
Transcription initiation factor IIF, alpha subunit (TFIIF-alpha)
Transcription initiation factor IIF, beta subunit
Transcription initiation factor TFIID subunit A
Transcription termination and cleavage factor C-terminal
Transferrin
Transferrin receptor-like dimerisation domain
Transforming growth factor beta like domain
Transforming growth factor beta receptor 2 ectodomain
Transforming growth factor beta type I GS-motif
Transglutaminase family
Transglutaminase family, C-terminal ig like domain
Transglutaminase-like superfamily
Transketolase, C-terminal domain
Transketolase, pyrimidine binding domain
Transketolase, thiamine diphosphate binding domain
Translationally controlled tumour protein
Translation initiation factor 1A / IF-1
Translation initiation factor eIF3 subunit
Translation initiation factor SUI1
Translin family
Transmembrane protein 173
Transmembrane proteins 14C
Transport protein particle (TRAPP) component
Transposase (partial DDE domain)
Trefoil (P-type) domain
TRF2-interacting telomeric protein/Rap1 - C terminal domain
Triosephosphate isomerase
tRNA (Guanine-1)-methyltransferase
tRNAHis guanylyltransferase
tRNA methyltransferase complex GCD14 subunit
tRNA pseudouridine synthase
tRNA synthetase B5 domain
tRNA synthetase class II core domain (G, H, P, S and T)
tRNA synthetases class I (E and Q), anti-codon binding domain
tRNA synthetases class I (E and Q), catalytic domain
tRNA synthetases class II core domain (F)
tRNA synthetases class II (D, K and N)
tRNA synthetases class I (I, L, M and V)
tRNA synthetases class I (R)
tRNA synthetases class I (W and Y)
Tropomodulin
Troponin
Trypsin
Trypsin Inhibitor like cysteine rich domain
Trypsin-like peptidase domain
Tryptophan 2,3-dioxygenase
Tub family
Tubulin binding cofactor C
Tubulin C-terminal domain
Tubulin/FtsZ family, GTPase domain
Tubulin-specific chaperone C N-terminal domain
Tubulin-tyrosine ligase family
Tudor domain
Tumour necrosis factor receptor stn_TNFRSF12A_TNFR domain
Tumour suppressor p53-binding protein-1 Tudor
Tumour-suppressor protein CtIP N-terminal domain
twin BRCT domain
Two-component sensor kinase N-terminal
Type III restriction enzyme, res subunit
Type I phosphodiesterase / nucleotide pyrophosphatase
Tyrosine hydroxylase N terminal
Tyrosine-protein kinase receptor C2 Ig-like domain
Tyrosine-rich domain of Sam68
Tyrosyl-DNA phosphodiesterase
U1 small nuclear ribonucleoprotein of 70kDa MW N terminal
U1 zinc finger
UBA domain
UBA-like domain
UB-associated-like domain of HOIP or E3 ubiquitin-protein ligase
UBA/TS-N domain
Ubiquitin-2 like Rad60 SUMO-like
Ubiquitin-binding domain
Ubiquitin-binding zinc-finger
Ubiquitin carboxyl-terminal hydrolase
Ubiquitin carboxyl-terminal hydrolase, family 1
Ubiquitin-conjugating enzyme
Ubiquitin family
Ubiquitin fold modifier 1 protein
Ubiquitin-fold modifier-conjugating enzyme 1
Ubiquitin fusion degradation protein UFD1
Ubiquitin interaction motif
Ubiquitin-like domain
Ubiquitin-like oligomerisation domain of SATB
Ubiquitin-specific protease C-terminal
Ubiquitin/SUMO-activating enzyme ubiquitin-like domain
U-box domain
UBX domain
UDP-glucoronosyl and UDP-glucosyl transferase
UDP-glucose/GDP-mannose dehydrogenase family, NAD binding domain
UDP-glucose/GDP-mannose dehydrogenase family, UDP binding domain
UEV domain
Ulp1 protease family, C-terminal catalytic domain
UNC-6/NTR/C345C module
Uncharacterised conserved protein
Uncharacterised protein family (UPF0113)
Uncharacterised protein family, YAP/Alf4/glomulin
Uncharacterized conserved protein (DUF2246)
Uncharacterized conserved protein (DUF2352)
Unconventional myosin-X coiled coil domain
u-PAR/Ly-6 domain
Uracil DNA glycosylase superfamily
Uroporphyrinogen decarboxylase (URO-D)
Uroporphyrinogen-III synthase HemD
Uso1 / p115 like vesicle tethering protein, head region
USP8 dimerisation domain
USP8 interacting
UTP--glucose-1-phosphate uridylyltransferase
Vacuolar protein sorting-associated protein 26
Vacuolar protein sorting-associated protein 35
Vacuolar protein sorting protein 36 Vps36
Variant SH3 domain
Vesicle transport v-SNARE protein N-terminus
Vesiculovirus matrix protein
VHS domain
Villin headpiece domain
Vinculin family
Vitamin B12 dependent methionine synthase, activation domain
Vitamin D binding protein, domain III
Vitamin K-dependent carboxylation/gamma-carboxyglutamic (GLA) domain
Voltage-dependent L-type calcium channel, IQ-associated
Voltage gated calcium channel IQ domain
Voltage gated calcium channel subunit beta domain 4Aa N terminal
von Hippel-Lindau disease tumour suppressor protein
von Willebrand factor type A domain
von Willebrand factor type C domain
Vps16, C-terminal region
Vps4 C terminal oligomerisation domain
Vps5 C terminal like
Vta1 like
WAP-type (Whey Acidic Protein) 'four-disulfide core'
WASP-binding domain of Sorting nexin protein
WD40 associated region in TFIID subunit, NTD2 domain
WD domain, G-beta repeat
WD-repeat region
WGR domain
WH1 domain
WH2 motif
WHEP-TRS domain
WIF domain
Wings apart-like protein regulation of heterochromatin
WW domain
WWE domain
XLF-Cernunnos, XRcc4-like factor, NHEJ component
XPA protein C-terminus
XPA protein N-terminal
XPC-binding domain
XPG I-region
XPG N-terminal domain
XRCC1 N terminal domain
Ydr279p protein family (RNase H2 complex component)
YT521-B-like domain
zf-RING of BARD1-type protein
Zinc-binding dehydrogenase
Zinc carboxypeptidase
Zinc finger, C2H2 type
Zinc finger, C2HC type
Zinc finger, C3HC4 type (RING finger)
Zinc finger, C4 type (two domains)
Zinc-finger (CX5CX6HX5H) motif
Zinc finger C-x8-C-x5-C-x3-H type (and similar)
Zinc-finger double-stranded RNA-binding
Zinc finger FYVE domain-containing protein 21 C-terminus
Zinc-finger of C2H2 type
zinc finger of C3HC4-type, RING
Zinc-finger of the MIZ type in Nse subunit
Zinc finger, ZZ type
Zinc knuckle
Zinc-ribbon
zinc RING finger of MSL2
Zn-finger in Ran binding protein and others
Zn-finger in ubiquitin-hydrolases and other protein
ZU5 domain

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