Table 4.

Number of nucleotides at the three base sites of a codon in the coding sequence of Aquifex aeolicus.

	T	C	A	G
First base	82 722	77 800	157 096	167 050
Second base	159 068	84 092	168 591	72 917
Third base	103 692	119 016	147 956	114 004