Cytidine deaminase is an enzyme that in humans is encoded by the CDAgene.[5][6][7]
This gene encodes an enzyme involved in pyrimidine salvaging. The encoded protein forms a homotetramer that catalyzes the irreversible hydrolytic deamination of cytidine and deoxycytidine to uridine and deoxyuridine, respectively. It is one of several deaminases responsible for maintaining the cellular pyrimidine pool. Mutations in this gene are associated with decreased sensitivity to the cytosine nucleoside analogue cytosine arabinoside used in the treatment of certain childhood leukemias.[7] Most cytidine deaminases act on RNA, and the few that act on DNA require ssDNA.[8]
^"Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
^"Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
^Kühn K, Bertling WM, Emmrich F (January 1993). "Cloning of a functional cDNA for human cytidine deaminase (CDD) and its use as a marker of monocyte/macrophage differentiation". Biochemical and Biophysical Research Communications. 190 (1): 1–7. doi:10.1006/bbrc.1993.1001. PMID8422236.
^Demontis S, Terao M, Brivio M, Zanotta S, Bruschi M, Garattini E (December 1998). "Isolation and characterization of the gene coding for human cytidine deaminase". Biochimica et Biophysica Acta (BBA) - Gene Structure and Expression. 1443 (3): 323–33. doi:10.1016/s0167-4781(98)00235-8. PMID9878810.