Reversible hydration of carbon dioxide. Homodimer. Highly expressed in colon, kidney, prostate, intestine and activated lymphocytes. Expressed at much higher levels in the renal cell cancers than in surrounding normal kidney tissue. Moderately expressed in pancreas, ovary and testis. Inhibited by coumarins, saccharin, sulfonamide derivatives such as acetazolamide (AZA), benzenesulfonamide and derivatives (4-carboxyethylbenzene-sulfonamide, 4- carboxyethylbenzene-sulfonamide ethyl ester, 4-(acetyl-2- aminoethyl)benzene-sulfonamide, 4-aminoethylbenzene-sulfonamide) and Foscarnet (phosphonoformate trisodium salt). Belongs to the alpha-carbonic anhydrase family. 2 isoforms of the human protein are produced by alternative splicing. Note: This description may include information from UniProtKB.
Protein type: Membrane protein, integral; EC 18.104.22.168; Lyase; Energy Metabolism - nitrogen
Cellular Component: plasma membrane; integral to membrane
Molecular Function: carbonate dehydratase activity; zinc ion binding
Biological Process: bicarbonate transport; one-carbon compound metabolic process
SS: The number of records in which this modification site was determined using site-specific methods. SS methods include amino acid sequencing, site-directed mutagenesis, modification site-specific antibodies, specific MS strategies, etc.