Pictorial representation of the genes in the LPS/CPS regions of O1, O37, O22, O139 and O31 Vibrio cholerae. The galE and wbeW genes found in common between all five sequences are marked in blue. The housekeeping genes gmhD and rjg that delineate the region are marked in black. The genes in common between O22 aand O139 are marked in grey. The transport genes and the IS elements are labeled. The unlabeled genes represented by white boxes are not found in common across the regions.