RPSBLAST alignment for GI: 254780193 and conserved domain: cd03289

>gnl|CDD|73048 cd03289, ABCC_CFTR2, The CFTR subfamily domain 2. 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 = 275
 Score = 95.5 bits (237), Expect = 3e-20
 Identities = 57/216 (26%), Positives = 109/216 (50%), Gaps = 4/216 (1%)

Query: 304 SILKNVNFTVQPGETIALVGDSGAGKTSIFSLILRFYDPCSGSVEIEGIDLRLLSLEEIR 363
           ++L+N++F++ PG+ + L+G +G+GK+++ S  LR  +   G ++I+G+    + L++ R
Sbjct: 18  AVLENISFSISPGQRVGLLGRTGSGKSTLLSAFLRLLN-TEGDIQIDGVSWNSVPLQKWR 76

Query: 364 RFIAWVPQHPIMIAASVYDNI-AIGCPHATRKEIQNAAMLAQAHEFIGCLENGYDTILGD 422
           +    +PQ   + + +   N+   G    + +EI   A        I       D +L D
Sbjct: 77  KAFGVIPQKVFIFSGTFRKNLDPYGK--WSDEEIWKVAEEVGLKSVIEQFPGQLDFVLVD 134

Query: 423 GAVHLSTGQIQRIAIARAILKDSPILLLDEMGSALDIENEQKIWKVLREQRRGRTTIFAS 482
           G   LS G  Q + +AR++L  + ILLLDE  + LD    Q I K L++     T I + 
Sbjct: 135 GGCVLSHGHKQLMCLARSVLSKAKILLLDEPSAHLDPITYQVIRKTLKQAFADCTVILSE 194

Query: 483 HRLSAIQDADMVFVLHDQVIVEKGVHEELLKKSGFY 518
           HR+ A+ +     V+ +  + +    ++LL +   +
Sbjct: 195 HRIEAMLECQRFLVIEENKVRQYDSIQKLLNEKSHF 230