UniProt functional annotation for Q59643

UniProt code: Q59643.

Organism: Pseudomonas aeruginosa (strain ATCC 15692 / DSM 22644 / CIP 104116 / JCM 14847 / LMG 12228 / 1C / PRS 101 / PAO1).
Taxonomy: Bacteria; Proteobacteria; Gammaproteobacteria; Pseudomonadales; Pseudomonadaceae; Pseudomonas.
 
Function: Catalyzes an early step in the biosynthesis of tetrapyrroles. Binds two molecules of 5-aminolevulinate per subunit, each at a distinct site, and catalyzes their condensation to form porphobilinogen (By similarity). {ECO:0000250}.
 
Catalytic activity: Reaction=2 5-aminolevulinate = H(+) + 2 H2O + porphobilinogen; Xref=Rhea:RHEA:24064, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378, ChEBI:CHEBI:58126, ChEBI:CHEBI:356416; EC=4.2.1.24; Evidence={ECO:0000269|PubMed:16819823};
Cofactor: Name=Mg(2+); Xref=ChEBI:CHEBI:18420; Evidence={ECO:0000269|PubMed:12079382, ECO:0000269|PubMed:16819823};
Activity regulation: Stimulated by magnesium ions.
Pathway: Porphyrin-containing compound metabolism; protoporphyrin-IX biosynthesis; coproporphyrinogen-III from 5-aminolevulinate: step 1/4.
Subunit: Homooctamer; formed by oligomerization of dimers. {ECO:0000269|PubMed:10356331, ECO:0000269|PubMed:12079382, ECO:0000269|PubMed:19822707}.
Similarity: Belongs to the ALAD family. {ECO:0000305}.

Annotations taken from UniProtKB at the EBI.