[Term]
id: PR:000033987
name: bacterial-type beta-galactosidase
def: "A protein that is a translation product of the Escherichia coli K-12 lacZ gene or a 1:1 ortholog thereof in bacteria. The bacterial-type beta-galactosidase contains a Glycosyl hydrolases family 2 (Pfam:PF00703) domain instead of the Glycosyl hydrolases family 35 (Pfam:PF01301) domain typical of the eukaryotic-type." [PRO:DNx]
comment: Category=gene.
synonym: "lacZ" EXACT PRO-short-label [PRO:DNx]
synonym: "lactase" BROAD [PRO:DNx]
synonym: "beta-gal" BROAD [PRO:DNx]
is_a: PR:000000001 ! protein
relationship: only_in_taxon NCBITaxon:2 ! Bacteria

[Term]
id: PR:P00722
name: beta-galactosidase (Escherichia coli K-12)
def: "A bacterial-type beta-galactosidase that is encoded in the genome of Escherichia coli K-12." [PRO:DAN, UniProtKB:P00722]
comment: Category=organism-gene.
synonym: "lacZ" RELATED Gene-based [UniProtKB:P00722]
synonym: "b0344" RELATED Gene-based [UniProtKB:P00722]
synonym: "JW0335" RELATED Gene-based [UniProtKB:P00722]
synonym: "Ec-lacZ" EXACT PRO-short-label [PRO:DNx]
synonym: "lactase (Escherichia coli K-12)" BROAD [UniProtKB:P00722]
synonym: "beta-gal (Escherichia coli K-12)" BROAD [UniProtKB:P00722]
xref: EcoCyc:BETAGALACTOSID-MONOMER
xref: UniProtKB:P00722
intersection_of: only_in_taxon NCBITaxon:83333 ! Escherichia coli K-12
intersection_of: PR:000033987 ! bacterial-type beta-galactosidase
relationship: has_gene_template EcoGene:EG10527 ! lacZ (Escherichia coli K-12)