Skip to main content

Advertisement

Table 3 Frequency (Columns A-C), Dufton's (1997) size/complexity score [29] (Columns D-F) and Trifonov (2004) chronology ranking [30] (Columns G-I) of amino acids of degeneracy greater than one that have major codons. (In [30] there is no ranking for the two-fold part of Ser (Ser2), but its initiation was placed somewhere between Thr and Ile.)

From: The action of selection on codon bias in the human genome is related to frequency, complexity, and chronology of amino acids

A B C D E F G H I
Amino acid Group Frequency per 10,000 codons Amino acid Group Size/complexity score Amino acid Group Chronology ranking
Leu4 A 786 Gly A 1 Gly A 3.5
Ala A 704 Ala A 4.76 Ala A 4
Gly A 663 Val B 12.28 Val B 6
Pro A 628 Ile A 16.04 Asp B 6.3
Val B 598 Leu4 A 16.04 Ser4 A 7.3
Thr A 526 Ser2 B 17.86 Pro A 7.6
Ser4 A 500 Ser4 A 17.86 Leu4 A 9.4
Asp B 479 Thr A 21.62 Thr A 9.9
Gln A 477 Pro A 31.8 Ser2 B  
Ile A 433 Asp B 32.72 Ile A 11
Phe B 365 Asn B 33.72 Asn B 11.3
Asn B 362 Gln A 37.48 Gln A 11.4
Ser2 B 326 Phe B 44 His B 13.3
Tyr B 266 Tyr B 57 Phe B 13.8
His B 261 Cys B 57.16 Cys B 14.2
Cys B 227 His B 58.7 Tyr B 15.2