Capsule (K-antigen) genes in V. parahaemolyticus O3:K6. a) Bars with mutant names above indicate regions deleted in each mutant. Bent arrow indicates promoter. Design patterns of open reading frames indicate different classes of genes: vertical lines, pathway genes; diagonal lines, processing and transportation genes; grey box, glycosyltransferase; white box, functions not clear. b) GC percentage of the sequence in 120 bp windows, aligned to the genes in a.