FIG. 3.
Gene arrangement of a novel cytochrome c biosynthesis locus in C. jejuni 81-176. Two genes of NCTC 11168 are replaced in C. jejuni 81-176 by a 15-kb region encoding biosynthesis genes for cytochrome c with the closest homologs found in C. lari. In addition, this region also encodes a γ-glutamyltranspeptidase, a type II restriction-modification enzyme, and two hypothetical proteins with unknown functions. White boxes indicate the positions of tRNA genes.