Gene cluster for biosynthesis of the CPS in C. jejuni NCTC 11168. Enzymes of unknown function are colored grey. Enzymes responsible for the biosynthesis of the glucuronamide, heptose, and galactosyl moieties are colored green, yellow, and purple, respectively. Enzymes required for the methyl phosphoramidate modification are colored blue. Enzymes necessary for the export of the capsule are colored orange.