RPSBLAST alignment for GI: 254780871 and conserved domain: cd03291

>gnl|CDD|73050 cd03291, ABCC_CFTR1, The CFTR subfamily domain 1. The cystic fibrosis transmembrane regulator (CFTR), the product of the gene mutated in patients with cystic fibrosis, has adapted the ABC transporter structural motif to form a tightly regulated anion channel at the apical surface of many epithelia. Use of the term assembly of a functional ion channel implies the coming together of subunits, or at least smaller not-yet functional components of the active whole. In fact, on the basis of current knowledge only the CFTR polypeptide itself is required to form an ATP- and protein kinase A-dependent low-conductance chloride channel of the type present in the apical membrane of many epithelial cells. CFTR displays the typical organization (IM-ABC)2 and carries a characteristic hydrophilic R-domain that separates IM1-ABC1 from IM2-ABC2.. Length = 282
 Score = 58.9 bits (142), Expect = 1e-09
 Identities = 46/171 (26%), Positives = 91/171 (53%), Gaps = 30/171 (17%)

Query: 24  PVLENVHLSLKKGEIVALVSPSGTGKSTILH-IAGLLEVPDQGNVIIANQLCNKLSDDKK 82
           PVL+N++L ++KGE++A+   +G+GK+++L  I G LE P +G +  + ++         
Sbjct: 51  PVLKNINLKIEKGEMLAITGSTGSGKTSLLMLILGELE-PSEGKIKHSGRI--------- 100

Query: 83  SFLRCSKIGFVYQEHRLLMDFSVIENIIFPQIIAGINHKTAYQRAMDLLSYMDMSQYANR 142
           SF   S+  ++       M  ++ ENIIF        +K+  + A  L    D++++  +
Sbjct: 101 SF--SSQFSWI-------MPGTIKENIIFGVSYDEYRYKSVVK-ACQLEE--DITKFPEK 148

Query: 143 RSS-------DISGGEQQRVAICRAIANKPLIILADEPTGNLDLKTAQQVF 186
            ++        +SGG++ R+++ RA+     + L D P G LD+ T +++F
Sbjct: 149 DNTVLGEGGITLSGGQRARISLARAVYKDADLYLLDSPFGYLDVFTEKEIF 199