>gnl|CDD|73081 cd02205, CBS_pair, 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 = 113

 Score = 80.2 bits (197), Expect = 8e-16
 Identities = 35/111 (31%), Positives = 57/111 (51%), Gaps = 2/111 (1%)

Query: 230 IPLVKIGCPLIDAITILSEKRFGCVAVVDEGQKLKGIITEGDIFRNF--HKDLNTLSVED 287
           +  V     + +A+ ++ E     + VVD+  +L GI+TE D+ R          ++V D
Sbjct: 3   VVTVSPDDTVAEALRLMLEHGISGLPVVDDDGRLVGIVTERDLLRALAEGGLDPLVTVGD 62

Query: 288 VMIKNPKVILEDTLLTVAMQLLRQHNISVLMVVDDCQKAIGIVHFLDLLRF 338
           VM ++   +  DT L  A +L+ +H I  L VVDD  + +GIV   D+LR 
Sbjct: 63  VMTRDVVTVSPDTSLEEAAELMLEHGIRRLPVVDDEGRLVGIVTRSDILRA 113