RPSBLAST alignment for GI: 255764505 and conserved domain: cd04621

>gnl|CDD|73120 cd04621, CBS_pair_8, 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 = 135
 Score = 47.6 bits (113), Expect = 4e-06
 Identities = 28/124 (22%), Positives = 49/124 (39%), Gaps = 26/124 (20%)

Query: 239 LIDAITILSEKRFGCVAVVDEGQKLKGIITEGDIFRNFHKDLN----------------- 281
           L+  +  + +   G V VVD+  K  G+IT  D+     +D                   
Sbjct: 12  LLHVVDEMEKNGVGRVIVVDDNGKPVGVITYRDLAFAEFEDNERGLPKKSIKMKRKAGQK 71

Query: 282 --------TLSVEDVMIKNPKVILEDTLLTVAMQLLRQHNISVLMVVDDCQKAIGIVHFL 333
                    L  ED+M +    +  +  +  A +L+ + NIS L VVD+    +G++   
Sbjct: 72  RYRYVKEVPLVAEDIMTEEIITVSPNDDVVDAAKLMLEANISGLPVVDN-DNIVGVITKT 130

Query: 334 DLLR 337
           D+ R
Sbjct: 131 DICR 134