>gnl|CDD|73116 cd04617, CBS_pair_4, 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 = 118

 Score = 42.5 bits (100), Expect = 2e-04
 Identities = 28/108 (25%), Positives = 54/108 (50%), Gaps = 7/108 (6%)

Query: 229 SIPL-VKIGCPLIDAITILSEKRFGCVAVVDEGQKLKGIITEGDIFRNF--HKDLNTLSV 285
           S P+ V+    + DAI  L  +  G + VVDE   L G+++  D+ +      DL  + V
Sbjct: 1   SPPVVVRENTSVYDAIVTLFLEDVGSLFVVDEDGDLVGVVSRKDLLKASIGGADLQKVPV 60

Query: 286 EDVMIKNPKVIL---EDTLLTVAMQLLRQHNISVLMVVDDCQKAIGIV 330
             +M + P +     E+++L  A +L+ +H +  L VV+   + + ++
Sbjct: 61  GVIMTRMPNITTTTPEESVLEAAKKLI-EHQVDSLPVVEKVDEGLEVI 107