CFTR（CF transmembrane conductance regulator），癌症关联基因，基因ID：1080，该基因编码atp结合盒（abc）转运蛋白超家族的一个成员。编码的蛋白质作为氯离子通道发挥作用，使其在该蛋白家族成员中独一无二，并控制上皮组织中离子和水的分泌和吸收。通道激活由调节域磷酸化、核苷酸结合域结合atp和atp水解的周期介导。这种基因的突变导致囊性纤维化，这是北欧后裔中最常见的致死性遗传疾病。囊性纤维化中最常见的突变，deltaf508，导致编码蛋白的折叠和运输受损。在人类基因组中发现了多个假基因。[由RefSeq提供，2017年8月]This gene encodes a member of the ATP-binding cassette (ABC) transporter superfamily. The encoded protein functions as a chloride channel， making it unique among members of this protein family， and controls ion and water secretion and absorption in epithelial tissues. Channel activation is mediated by cycles of regulatory domain phosphorylation， ATP-binding by the nucleotide-binding domains， and ATP hydrolysis. Mutations in this gene cause cystic fibrosis， the most common lethal genetic disorder in populations of Northern European descent. The most frequently occurring mutation in cystic fibrosis， DeltaF508， results in impaired folding and trafficking of 。