porphobilinogen synthase
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por·pho·bi·lin·o·gen syn·thase
a liver enzyme catalyzing the formation of porphobilinogen and water from two molecules of δ-aminolevulinate, an important reaction in porphyrin biosynthesis; inhibited by lead in cases of lead poisoning; a deficiency of this enzyme results in elevated levels of δ-aminolevulinate and results in neurologic disturbances.
Synonym(s): δ-aminolevulinate dehydratase
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