Influenza A virus [gbvrl]: 40413 CDS's (16473114 codons)
fields: [triplet] [frequency: per thousand] ([number]) 
UUU 17.8(293396)  UCU 12.8(210832)  UAU 14.2(233240)  UGU  7.6(125361)
UUC 20.2(332322)  UCC 11.0(181613)  UAC 12.6(207199)  UGC 11.2(184026)
UUA  8.1(133967)  UCA 19.0(312168)  UAA  1.2( 19221)  UGA  0.8( 12569)
UUG 14.6(240030)  UCG  3.8( 61962)  UAG  0.5(  8905)  UGG 16.4(270035)

CUU 16.8(276221)  CCU 11.3(185417)  CAU  9.9(162471)  CGU  2.0( 33533)
CUC 12.2(200260)  CCC  7.3(119819)  CAC  7.2(118729)  CGC  3.2( 52445)
CUA 13.3(219434)  CCA 14.7(242107)  CAA 22.5(371086)  CGA  6.1( 99775)
CUG 14.8(243631)  CCG  4.7( 76633)  CAG 18.4(302804)  CGG  5.6( 91717)

AUU 23.7(389594)  ACU 18.3(301672)  AAU 31.3(515196)  AGU 14.4(237994)
AUC 18.1(298586)  ACC 13.2(217249)  AAC 23.5(387110)  AGC 15.3(252010)
AUA 24.4(402080)  ACA 27.7(455971)  AAA 35.9(591384)  AGA 31.7(521693)
AUG 37.8(622324)  ACG  4.9( 80019)  AAG 22.2(365188)  AGG 18.2(299901)

GUU 13.4(220590)  GCU 15.4(254219)  GAU 26.1(429380)  GGU  9.9(162838)
GUC 11.1(183609)  GCC 12.6(207403)  GAC 20.2(332513)  GGC  9.0(148927)
GUA 12.5(205254)  GCA 24.2(398856)  GAA 40.5(667159)  GGA 29.8(491304)
GUG 19.6(323574)  GCG  4.5( 74308)  GAG 31.2(513739)  GGG 18.1(298542)
Coding GC 43.85% 1st letter GC 46.79% 2nd letter GC 40.45% 3rd letter GC 44.30%
Format:
Genetic codes (NCBI)
Codon Usage Table with Amino Acids
A style like CodonFrequency output in GCG Wisconsin PackageTM
CDS Search:

Keyword example: ribosomal protein / MAP kinase
List of codon usage for each CDS [CAUTION: The file is big (> 1000 entries).] (format)
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