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GenScript Codon Usage Frequence Table Tool

** This online tool shows commonly used genetic codon frequency table in expression host organisms including Escherichia coli and other common host organisms.

Expression Host Organism:


Escherichia coli: (Genetic code: Standard)

Fields: Triplet | Amino acid | Fraction | Frequency/Thousand | (Number)

TTT F 0.58 22.1 ( 80995)  TCT S 0.17 10.4 ( 38027)  TAT Y 0.59 17.5 ( 63937)  TGT C 0.46  5.2 ( 19138)
TTC F 0.42 16.0 ( 58774)  TCC S 0.15  9.1 ( 33430)  TAC Y 0.41 12.2 ( 44631)  TGC C 0.54  6.1 ( 22188)
TTA L 0.14 14.3 ( 52382)  TCA S 0.14  8.9 ( 32715)  TAA * 0.61  2.0 (  7356)  TGA * 0.30  1.0 (  3623)
TTG L 0.13 13.0 ( 47500)  TCG S 0.14  8.5 ( 31146)  TAG * 0.09  0.3 (   989)  TGG W 1.00 13.9 ( 50991)

CTT L 0.12 11.9 ( 43449)  CCT P 0.18  7.5 ( 27340)  CAT H 0.57 12.5 ( 45879)  CGT R 0.36 20.0 ( 73197)
CTC L 0.10 10.2 ( 37347)  CCC P 0.13  5.4 ( 19666)  CAC H 0.43  9.3 ( 34078)  CGC R 0.36 19.7 ( 72212)
CTA L 0.04  4.2 ( 15409)  CCA P 0.20  8.6 ( 31534)  CAA Q 0.34 14.6 ( 53394)  CGA R 0.07  3.8 ( 13844)
CTG L 0.47 48.4 (177210)  CCG P 0.49 20.9 ( 76644)  CAG Q 0.66 28.4 (104171)  CGG R 0.11  5.9 ( 21552)

ATT I 0.49 29.8 (109072)  ACT T 0.19 10.3 ( 37842)  AAT N 0.49 20.6 ( 75436)  AGT S 0.16  9.9 ( 36097)
ATC I 0.39 23.7 ( 86796)  ACC T 0.40 22.0 ( 80547)  AAC N 0.51 21.4 ( 78443)  AGC S 0.25 15.2 ( 55551)
ATA I 0.11  6.8 ( 24984)  ACA T 0.17  9.3 ( 33910)  AAA K 0.74 35.3 (129137)  AGA R 0.07  3.6 ( 13152)
ATG M 1.00 26.4 ( 96695)  ACG T 0.25 13.7 ( 50269)  AAG K 0.26 12.4 ( 45459)  AGG R 0.04  2.1 (  7607)

GTT V 0.28 19.8 ( 72584)  GCT A 0.18 17.1 ( 62479)  GAT D 0.63 32.7 (119939)  GGT G 0.35 25.5 ( 93325)
GTC V 0.20 14.3 ( 52439)  GCC A 0.26 24.2 ( 88721)  GAC D 0.37 19.2 ( 70394)  GGC G 0.37 27.1 ( 99390)
GTA V 0.17 11.6 ( 42420)  GCA A 0.23 21.2 ( 77547)  GAA E 0.68 39.1 (143353)  GGA G 0.13  9.5 ( 34799)
GTG V 0.35 24.4 ( 89265)  GCG A 0.33 30.1 (110308)  GAG E 0.32 18.7 ( 68609)  GGG G 0.15 11.3 ( 41277)
 
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