RPSBLAST alignment for GI: 255764505 and conserved domain: cd04635

>gnl|CDD|73133 cd04635, CBS_pair_22, The CBS domain, named after human CBS, is a small domain originally identified in cystathionine beta-synthase and is subsequently found in a wide range of different proteins. CBS domains usually occur in tandem repeats. They associate to form a so-called Bateman domain or a CBS pair based on crystallographic studies in bacteria. The CBS pair was used as a basis for this cd hierarchy since the human CBS proteins can adopt the typical core structure and form an intramolecular CBS pair. The interface between the two CBS domains forms a cleft that is a potential ligand binding site. The CBS pair coexists with a variety of other functional domains and this has been used to help in its classification here. It has been proposed that the CBS domain may play a regulatory role, although its exact function is unknown. Mutations of conserved residues within this domain are associated with a variety of human hereditary diseases, including congenital myotonia, idiopathic generalized epilepsy, hypercalciuric nephrolithiasis, and classic Bartter syndrome (CLC chloride channel family members), Wolff-Parkinson-White syndrome (gamma 2 subunit of AMP-activated protein kinase), retinitis pigmentosa (IMP dehydrogenase-1), and homocystinuria (cystathionine beta-synthase).. Length = 122
 Score = 49.6 bits (118), Expect = 1e-06
 Identities = 28/104 (26%), Positives = 50/104 (48%), Gaps = 11/104 (10%)

Query: 245 ILSEKRFGCVAVVDEGQKLKGIITEGDIFRNFH-----------KDLNTLSVEDVMIKNP 293
           ++ E  F  + VV +  +L GIIT  DI R              +   + +VE +M    
Sbjct: 18  LMLESGFTGLPVVQKAGELIGIITRRDIIRAGSVRTSVEDQQRTQTKASPTVEKIMSTPV 77

Query: 294 KVILEDTLLTVAMQLLRQHNISVLMVVDDCQKAIGIVHFLDLLR 337
             +  D  +  A++L+ +H+I  L VV++  + +GIV   D+L+
Sbjct: 78  YSVTPDDSIATAVELMLEHDIGRLPVVNEKDQLVGIVDRHDVLK 121