Human angiotensin-converting enzyme 2(ACE2), an only known homologue of human ACE, is a novel metallocarboxypeptidase with characteristics distinct from those of ACE.

• 人血管紧张素转换酶2(ACE2)是目前已知的惟一的人血管紧张素转换酶(ACE)的同源物,是一种新型的金属羧肽酶,很多特性与ACE截然不同。