TABLE 2.

Bacterial species using high frequencies of TAG

Stop codon usage of species that use unusually often the stop codon TAG is shown. The listed species span a wide range of genomic GC content. Listed are the frequencies for all coding sequences (CDS) and only for highly expressed genes. BCG str., Bacillus Calmette-Guérin strain.

Strain	All CDS			Highly expressed			GC
	TAG	TGA	TAA	TAG	TGA	TAA
							%
Salinibacter ruber DSM 13855	0.473	0.362	0.165	0.734	0.102	0.163	66.1
Anaplasma marginale St. Maries	0.507	0.24	0.253	0.58	0.274	0.145	49.8
Clavibacter michiganensis subsp. michiganensis	0.230	0.748	0.021	0.566	0.183	0.233	72.5
Desulfovibrio vulgaris Hildenborough	0.406	0.46	0.134	0.564	0	0.435	63.3
Anaplasma phagocytophilum HZ	0.401	0.234	0.365	0.551	0.189	0.241	41.6
Treponema pallidum Nichols	0.386	0.369	0.245	0.517	0.313	0.172	52.8
Synechococcus sp. JA-2-3B-a(2-13)	0.41	0.389	0.201	0.482	0.31	0.189	58.5
Acaryochloris marina MBIC11017	0.307	0.226	0.466	0.448	0.017	0.534	47
Synechococcus sp. JA-3-3Ab	0.429	0.354	0.215	0.448	0.224	0.31	60.2
Myxococcus xanthus DK 1622	0.249	0.686	0.064	0.411	0.338	0.25	68.9
Mycobacterium bovis BCG str. Pasteur 1173P2	0.298	0.545	0.156	0.406	0.468	0.125	65.6