| 1 | Adenine content |
| 2 | Cytosine content |
| 3 | GC content |
| 4 | Guanine content |
| 5 | Keto (GT) content |
| 6 | Purine (AG) content |
| 7 | Thymine content |
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M Friedel, S Nikolajewa, J Suehnel, T Wilhelm.DiProDB: a database for dinucleotide properties. Nucleic Acids Research (Database issue) 37 (2009) D37-40."