RPSBLAST alignment for GI: 254780889 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 = 46.9 bits (111), Expect = 1e-05
 Identities = 36/136 (26%), Positives = 58/136 (42%), Gaps = 30/136 (22%)

Query: 101 NPVTISPYATLADALALMKKYSISGIPVVESDVGKLVGILTNRDVRFASNAQQ------- 153
           +  T+ P  +L   +  M+K  +  + VV+ D GK VG++T RD+ FA            
Sbjct: 2   DIATVHPEHSLLHVVDEMEKNGVGRVIVVD-DNGKPVGVITYRDLAFAEFEDNERGLPKK 60

Query: 154 ---------------------AVGELMTRNLITVKKTVNLENAKALLHQHRIEKLLVVDD 192
                                   ++MT  +ITV    ++ +A  L+ +  I  L VVD+
Sbjct: 61  SIKMKRKAGQKRYRYVKEVPLVAEDIMTEEIITVSPNDDVVDAAKLMLEANISGLPVVDN 120

Query: 193 DGCCIGLITVKDIERS 208
           D   +G+IT  DI R 
Sbjct: 121 DN-IVGVITKTDICRE 135