RPSBLAST alignment for GI: 255764470 and conserved domain: cd04803

>gnl|CDD|73145 cd04803, CBS_pair_15, 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 = 39.8 bits (93), Expect = 0.002
 Identities = 25/108 (23%), Positives = 48/108 (44%), Gaps = 15/108 (13%)

Query: 330 WKILELGHSR-FPVAQGSLDSFIGIVSARDLLRDLLE------EGSMNFKRSIRKPLVVH 382
            +++     R  PV        +G+++ RDLLR  L       E S+  +R +    V+ 
Sbjct: 16  EELMREHRIRHLPVVNED-GKLVGLLTQRDLLRAALSSLSDNGEESLTKERDVPVAEVMK 74

Query: 383 ENISVLKLMERLRKSSQTFVM-------VLDEYGVLEGMITPANILEA 423
            ++  +     LR++++  V        V+D+ G L G+IT ++ L  
Sbjct: 75  TDVLTVTPDTPLREAAEIMVENKIGCLPVVDDKGTLVGIITRSDFLRL 122