Deciphering chemotaxis pathways using cross species comparisons

BMC Systems Biology

Table 2 Distribution of che genes across all species studied

che gene	Number of che genes	Number of species	Isolated che genes*	Species with isolated che genes
CheA	335 (367)	206 (238)	2	2
CheB	352 (408)	206 (249)	19	17
CheR	340 (395)	206 (251)	44	42
CheW	525 (625)	206 (274)	126	83
CheY	1252 (1822)	206 (358)	693	169
CheV	175 (209)	92 (117)	110	68
CheZ	96 (105)	94 (102)	7	7

Numbers in brackets refer to homologues found in all 523 bacterial genomes examined. All other numbers are taken from those species with at least one of each of the 5 core Che proteins.
*Isolated che genes refer to che genes that are not in close proximity to other che genes.

ISSN: 1752-0509