!!GENETIC_CODE 1.0 This file contains the standard GCG translation table (Data Files volume of the Data Reference Set). It names amino acids in both one and three-letter form and lists the codons which should translate into them. All GCG translation programs generate their translations from the unambiguous codons in this table or the table you provide. There should be white space between all of the "words" in this file. The unambiguous codons, if they exist, must start with the third word in the line and come before the '!'. The '!' delimits where the individual codons end and where the ambiguous codons start. The ambiguous codons are completely ignored by software as of this writing (2/86). Each codon and sequence symbol may only be used once. Codons which translate to the symbol '*' are taken to be stop codons. Codons which are all lower case are start codons. THIS MEANS THAT ALL OTHER CODONS SHOULD BE UPPER CASE!!! Any of the 31 GCG sequence symbols may have a three-letter name and one or more unambiguous codons. Only the unambiguous codons are read by the programs to modify the standard scheme of translation (Appendix III). Standard Translation Table Symbol 3-letter Codons ! IUPAC .. A Ala GCT GCC GCA GCG ! GCX B Asx ! RAY C Cys TGT TGC ! TGY D Asp GAT GAC ! GAY E Glu GAA GAG ! GAR F Phe TTT TTC ! TTY G Gly GGT GGC GGA GGG ! GGX H His CAT CAC ! CAY I Ile ATT ATC ATA ! ATH J ??? ... ! ... K Lys AAA AAG ! AAR L Leu TTG TTA CTT CTC CTA CTG ! TTR CTX YTR ; YTX M Met atg ! ATG N Asn AAT AAC ! AAY O ??? ... ! ... P Pro CCT CCC CCA CCG ! CCX Q Gln CAA CAG ! CAR R Arg CGT CGC CGA CGG AGA AGG ! CGX AGR MGR ; MGX S Ser TCT TCC TCA TCG AGT AGC ! TCX AGY ; WSX T Thr ACT ACC ACA ACG ! ACX U ??? ... ! ... V Val GTT GTC GTA GTG ! GTX W Trp TGG ! TGG X Xxx ! XXX Y Tyr TAT TAC ! TAY Z Glx ! SAR . ... ... ! ... * End TAA TAG TGA ! TAR TRA ; TRR