CA1（Carbonic anhydrase1）是红细胞的主要蛋白质成分之一,是一种重要的锌酶，对血液及组织起到维持酸碱平衡的作用，协助体内组织排除二氧化碳，碳酸酐酶I参与呼吸、钙化、酸碱平衡、骨吸收和各种体液形成的生理过程。

    Carbonic Anhydrase I （CAI） is a single polypeptide chain metalloenzyme of molecular weight 29 kDa. It is present mainly in erythrocytes at a concentration of about 12 mg per gram haemoglobin. Its main enzyme function is to catalyse the reversible hydration of carbon dioxide. It also catalyses the hydrolysis of certain esters. The twelve active CA isozymes are thought to regulate a variety of cellular functions including several processes in the reproductive systems. A mutational deficiency has been described but patients exhibit no adverse chemical symptoms. Red cell CAI levels are decreased in patients with thyrotoxicosis.
    Also known as:
    Carbonic anhydrase I; JW0122; CA 1; CA I; CA1; CAI; CAN; Car 1; Car1; Carbonate dehydratase I; Carbonic anhydrase 1 ; Carbonic anhydrase B; Carbonic dehydratase; ECK0125; yadF.