Genetic map of the E. coli chromosome in the region between modC and attλ. The genes and putative gene products listed in the annotated E. coli genome sequence are as follows: ybhA, phosphatase; ybhE (shown here to be pgl), isomerase; ybhD, LysR-type transcriptional regulator; ybhH, unknown; ybhI, membrane pump protein; ybhJ, unknown; and ybhC, pectinesterase.