[Term] id: PR:000023978 name: protease 4 def: "A protein that is a translation product of the Escherichia coli K-12 sppA gene or a 1:1 ortholog thereof." [PRO:DNx] comment: Category=gene. synonym: "sppA" EXACT PRO-short-label [PRO:DNx] synonym: "endopeptidase IV" EXACT [] synonym: "protease IV" EXACT [] synonym: "signal peptide peptidase" RELATED [] property_value: has_archetype PR:P08395 is_a: PR:000000001 ! protein