>gnl|CDD|73136 cd04638, CBS_pair_25, 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 = 106

 Score = 56.8 bits (137), Expect = 8e-09
 Identities = 32/97 (32%), Positives = 53/97 (54%), Gaps = 5/97 (5%)

Query: 241 DAITILSEKRFGCVAVVDEGQKLKGIITEGDIFRNFHKDLNTLSVEDVMIKNPKVILEDT 300
           D + +L E +   V VV +  +L GIIT  D+ RN  ++   L    +M ++P  +  D 
Sbjct: 14  DVLELLKEYKVSGVPVVKKSGELVGIITRKDLLRNPEEEQLAL----LMTRDPPTVSPDD 69

Query: 301 LLTVAMQLLRQHNISVLMVVDDCQKAIGIVHFLDLLR 337
            +  A +L+ ++NI  + VVDD  K +GIV   D++R
Sbjct: 70  DVKEAAKLMVENNIRRVPVVDD-GKLVGIVTVADIVR 105