RPSBLAST alignment for GI: 254780889 and conserved domain: cd04636

>gnl|CDD|73134 cd04636, CBS_pair_23, 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 = 132
 Score = 41.0 bits (96), Expect = 8e-04
 Identities = 20/54 (37%), Positives = 30/54 (55%), Gaps = 2/54 (3%)

Query: 92  KKFESGMVVNPVTISPYATLADALALMKKYSISGIPVVESDVGKLVGILTNRDV 145
           KK E  M    +T+    T+ D   +M K +I  +PVV+   GKLVGI++  D+
Sbjct: 78  KKVEEIMTKKVITVDEDTTIEDVARIMSKKNIKRLPVVDD--GKLVGIISRGDI 129