UniProt functional annotation for Q8GCA8

UniProt code: Q8GCA8.

Organism: Bacillus megaterium.
Taxonomy: Bacteria; Firmicutes; Bacilli; Bacillales; Bacillaceae; Priestia.
 
Function: Tetrapolymerization of the monopyrrole PBG into the hydroxymethylbilane pre-uroporphyrinogen in several discrete steps. {ECO:0000256|ARBA:ARBA00002869, ECO:0000256|HAMAP-Rule:MF_00260}.
 
Catalytic activity: Reaction=H2O + 4 porphobilinogen = hydroxymethylbilane + 4 NH4(+); Xref=Rhea:RHEA:13185, ChEBI:CHEBI:15377, ChEBI:CHEBI:28938, ChEBI:CHEBI:57845, ChEBI:CHEBI:58126; EC=2.5.1.61; Evidence={ECO:0000256|ARBA:ARBA00000416, ECO:0000256|HAMAP- Rule:MF_00260};
Cofactor: Name=dipyrromethane; Xref=ChEBI:CHEBI:60342; Evidence={ECO:0000256|ARBA:ARBA00001916};
Cofactor: Name=dipyrromethane; Xref=ChEBI:CHEBI:60342; Evidence={ECO:0000256|HAMAP-Rule:MF_00260}; Note=Binds 1 dipyrromethane group covalently. {ECO:0000256|HAMAP- Rule:MF_00260};
Subunit: Monomer. {ECO:0000256|HAMAP-Rule:MF_00260}.
Miscellaneous: The porphobilinogen subunits are added to the dipyrromethane group. {ECO:0000256|HAMAP-Rule:MF_00260}.
Similarity: Belongs to the HMBS family. {ECO:0000256|ARBA:ARBA00005638, ECO:0000256|HAMAP-Rule:MF_00260}.

Annotations taken from UniProtKB at the EBI.