>gnl|CDD|73144 cd04802, CBS_pair_3, 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 = 112

 Score = 51.0 bits (122), Expect = 5e-07
 Identities = 33/108 (30%), Positives = 51/108 (47%), Gaps = 5/108 (4%)

Query: 233 VKIGCPLIDAITILSEKRFGCVAVVDEGQKLKGIITEGDIFRNF---HKDLNTLSVEDVM 289
           V     + +A  I++E   G + VVD   K  GIITE D+ +     +     + V +VM
Sbjct: 6   VDPDTTVYEAANIMTENNIGRLIVVDNE-KPVGIITERDLVKKVVSRNLKPREVPVGEVM 64

Query: 290 IKNPKVILEDTLLTVAMQLLRQHNISVLMVVDDCQKAIGIVHFLDLLR 337
                 I  +  L  A +L+ +H I  L VVDD  + +GIV   D++ 
Sbjct: 65  STPLITIDPNASLNEAAKLMAKHGIKRLPVVDD-DELVGIVTTTDIVM 111