Composite table


[Important Notice]
This table can browse both anticodon number and codon usage concurrently.
When you consider the correlation of codon usage with anticodon number (i.e., number of tRNA genes having the respective anticodon), you have to pay attention to "wobble pairing" between the codon third position and the anticodon first position. For example, G base at the anticodon first position can pair with either U or C at the codon third position, and thus one anticodon can recognize two codons. U at the anticodon first position can pair with either A or G at the codon third position, and thus the anticodon also can recognize two codons. Furthermore, there exist the cases where the anticodon first position is enzymatically modified resulting in change of the codon recognition pattern.
Number of tRNA genes / Codon usage (permillage)
T C A G
AA anti
codon		 tRNA codon usage AA anti
codon		 tRNA codon usage AA anti
codon		 tRNA codon usage AA anti
codon		 tRNA codon usage
T phe AAA 0 TTT 20.36 Ser AGA 47 TCT 8.22 Tyr ATA 0 TAT 16.80 Cys ACA 1 TGT 3.92 T
GAA 36 TTC 19.02 GGA 5 TCC 8.87 GTA 88 TAC 13.01 GCA 29 TGC 5.48 C
Leu TAA 15 TTA 17.06 TGA 25 TCA 8.10 ochre TTA 0 TAA 1.59 opal Sec TCA 0 TGA 1.20 A
CAA 29 TTG 14.24 CGA 16 TCG 10.70 amber CTA 0 TAG 0.52 Trp CCA 29 TGG 12.95 G
C Leu AAG 27 CTT 11.76 Pro AGG 28 CCT 7.44 His ATG 0 CAT 11.43 Arg ACG 31 CGT 13.29 T
GAG 0 CTC 14.68 GGG 0 CCC 8.50 GTG 36 CAC 10.19 GCG 0 CGC 22.13 C
TAG 19 CTA 5.59 TGG 58 CCA 8.36 Gln TTG 29 CAA 16.78 TCG 10 CGA 4.19 A
CAG 12 CTG 39.43 CGG 13 CCG 19.65 CTG 19 CAG 22.95 CCG 11 CGG 8.89 G
A Ile AAT 34 ATT 26.36 Thr AGT 21 ACT 9.04 Asn ATT 0 AAT 19.42 Ser ACT 0 AGT 8.46 T
GAT 0 ATC 26.93 GGT 7 ACC 20.88 GTT 45 AAC 18.48 GCT 32 AGC 14.16 C
TAT 10 ATA 7.41 TGT 22 ACA 10.48 Lys TTT 25 AAA 30.42 Arg TCT 20 AGA 4.54 A
Met CAT 77 ATG 24.53 CGT 10 ACG 14.01 CTT 35 AAG 17.51 CCT 17 AGG 2.36 G
G Val AAC 31 GTT 15.87 Ala AGC 35 GCT 15.44 Asp ATC 1 GAT 29.15 Gly ACC 0 GGT 19.36 T
GAC 16 GTC 19.47 GGC 0 GCC 32.29 GTC 56 GAC 25.04 GCC 48 GGC 32.60 C
TAC 18 GTA 11.50 TGC 30 GCA 17.59 Glu TTC 39 GAA 36.11 TCC 22 GGA 11.41 A
CAC 18 GTG 25.07 CGC 19 GCG 31.99 CTC 38 GAG 23.65 CCC 13 GGG 11.18 G



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