Porphobilinogen deaminase

（重定向自Hydroxymethylbilane synthase）

Porphobilinogen deaminase (EC 2.5.1.61, Older sources categorize it under EC4.3.1.8), also known as hydroxymethylbilane synthase or uroporphyrinogen I synthase is an enzyme that in humans is encoded by the HMBS gene. Porphobilinogen deaminase is involved in the third step of the heme biosynthetic pathway. It catalyzes the head to tail condensation of four porphobilinogen molecules into the linear hydroxymethylbilane while releasing four ammonia molecules.

单词	Hydroxymethylbilane synthase
释义	Hydroxymethylbilane synthase 原声例句 Osmosis-血液肿瘤 Note that porphobilinogen deaminase is sometimes called uroporphyrinogen I synthase or hydroxymethylbilane synthase, or HMBS for short. 卟胆原脱氨酶有时被称为尿卟啉原I合成酶或羟甲基胆素合成酶，缩略为HMBS。英语百科 Porphobilinogen deaminase （重定向自Hydroxymethylbilane synthase） Porphobilinogen deaminase (EC 2.5.1.61, Older sources categorize it under EC4.3.1.8), also known as hydroxymethylbilane synthase or uroporphyrinogen I synthase is an enzyme that in humans is encoded by the HMBS gene. Porphobilinogen deaminase is involved in the third step of the heme biosynthetic pathway. It catalyzes the head to tail condensation of four porphobilinogen molecules into the linear hydroxymethylbilane while releasing four ammonia molecules.
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