[Term] id: PR:000023599 name: proline/betaine transporter def: "A protein that is a translation product of the Escherichia coli K-12 proP gene or a 1:1 ortholog thereof." [PRO:DNx] comment: Category=gene. synonym: "PPII" EXACT [] synonym: "proP" EXACT PRO-short-label [PRO:DNx] synonym: "proline porter II" EXACT [] is_a: PR:000000001 ! protein