[Term] id: PR:000022676 name: fumarate and nitrate reduction regulatory protein def: "A protein that is a translation product of the Escherichia coli K-12 fnr gene or a 1:1 ortholog thereof." [PRO:DNx] comment: Category=gene. synonym: "fnr" EXACT PRO-short-label [PRO:DNx] synonym: "nirR" RELATED [] is_a: PR:000000001 ! protein