Genetic Code [1]

 The Standard Code (transl_table=1)  

    AAs  = FFLLSSSSYY**CC*WLLLLPPPPHHQQRRRRIIIMTTTTNNKKSSRRVVVVAAAADDEEGGGG
  Starts = ---M---------------M---------------M----------------------------
  Base1  = TTTTTTTTTTTTTTTTCCCCCCCCCCCCCCCCAAAAAAAAAAAAAAAAGGGGGGGGGGGGGGGG
  Base2  = TTTTCCCCAAAAGGGGTTTTCCCCAAAAGGGGTTTTCCCCAAAAGGGGTTTTCCCCAAAAGGGG
  Base3  = TCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAG

                                                                               
#include <stdio.h>

char	*trans_tbl[4] = {
	 	"FFLLSSSSYY**CC*WLLLLPPPPHHQQRRRRIIIMTTTTNNKKSSRRVVVVAAAADDEEGGGG",
		"TTTTTTTTTTTTTTTTCCCCCCCCCCCCCCCCAAAAAAAAAAAAAAAAGGGGGGGGGGGGGGGG",
		"TTTTCCCCAAAAGGGGTTTTCCCCAAAAGGGGTTTTCCCCAAAAGGGGTTTTCCCCAAAAGGGG",
		"TCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAGTCAG"
	};

main()
{
	char	*test = "MWQLLLPTALLLLVSAGMRTEDLPKAVVFLEPQWYSVLEKDSVTLKCQGAYSPEDNSTQWFHSESLISSQASSYFIDAATVN";
	char	*seq = "atgtggcagctgctcctcccaactgctctgctacttctagtttcagctggc"
		       "atgcggactgaagatctcccaaaggctgtggtgttcctggagcctcaatgg"
		       "tacagcgtgcttgagaaggacagtgtgactctgaagtgccagggagcctac"
		       "tcccctgaggacaattccacacagtggtttcacagtgagagcctcatctca"
		       "agccaggcctcgagctacttcattgacgctgccacagtcaacg";
	int	i1;
	char	cno1, cno2, cno3;
	int	conv;

	for(;;){
		cno1 = *seq;
		cno2 = *(seq+1);
		cno3 = *(seq+2);
		if(cno1 == '\0' || cno2 == '\0' || cno3 == '\0')
			break;

		if(cno1 >= 'a' && cno1 <= 'z'){
			cno1 = cno1 - 'a' + 'A';
		}
		if(cno2 >= 'a' && cno2 <= 'z'){
			cno2 = cno2 - 'a' + 'A';
		}
		if(cno3 >= 'a' && cno3 <= 'z'){
			cno3 = cno3 - 'a' + 'A';
		}
		conv = '*';
		for(i1 = 0; i1 < 64; i1++){
			if(trans_tbl[1][i1] == cno1 &&
			   trans_tbl[2][i1] == cno2 &&
			   trans_tbl[3][i1] == cno3){
				conv = trans_tbl[0][i1];
				break;
			}
		}
		putchar(conv);
		seq += 3;
	}
	printf("\n%s\n", test);
}