Carbonic anhydrase 5B, mitochondrial is an enzyme that in humans is encoded by the CA5Bgene.[1][2]
Carbonic anhydrases (CAs) are a large family of zincmetalloenzymes that catalyze the reversible hydration of carbon dioxide. They participate in a variety of biological processes, including respiration, calcification, acid-base balance, bone resorption, and the formation of aqueous humor, cerebrospinal fluid, saliva, and gastric acid. They show extensive diversity in tissue distribution and in their subcellular localization. CA VB is localized in the mitochondria and shows the highest sequence similarity to the other mitochondrial CA, CA VA. It has a wider tissue distribution than CA VA, which is restricted to the liver. The differences in tissue distribution suggest that the two mitochondrial carbonic anhydrases evolved to assume different physiologic roles.[2]
References
↑Fujikawa-Adachi K, Nishimori I, Taguchi T, Onishi S (Aug 1999). "Human mitochondrial carbonic anhydrase VB. cDNA cloning, mRNA expression, subcellular localization, and mapping to chromosome x". J Biol Chem. 274 (30): 21228–33. doi:10.1074/jbc.274.30.21228. PMID10409679.
Ota T, Suzuki Y, Nishikawa T, et al. (2004). "Complete sequencing and characterization of 21,243 full-length human cDNAs". Nat. Genet. 36 (1): 40–5. doi:10.1038/ng1285. PMID14702039.
Vullo D, Nishimori I, Innocenti A, et al. (2007). "Carbonic anhydrase activators: an activation study of the human mitochondrial isoforms VA and VB with amino acids and amines". Bioorg. Med. Chem. Lett. 17 (5): 1336–40. doi:10.1016/j.bmcl.2006.11.075. PMID17174092.