Lee E C, Walker R I, Guerry P
Can J Microbiol. 1985 Nov;31(11):1064-7. doi: 10.1139/m85-201.
Cloned DNA from Campylobacter jejuni was found to complement auxotrophic defects in proline metabolism in several strains of Escherichia coli. A 4.4-kilobase fragment of Campylobacter DNA encodes the genes analogous to the proA and B genes of E. coli and Salmonella typhimurium.