HHsearch alignment for GI: 255764505 and conserved domain: cd04640

>cd04640 CBS_pair_27 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 gener
Probab=98.47  E-value=2.5e-07  Score=73.73  Aligned_cols=57  Identities=25%  Similarity=0.392  Sum_probs=49.8

Q ss_pred             HHHHHHHCCCCCCEEEE----EHHHHHHHHHHHHCCCCCEEEECCCCC-EEEEEEECCCHHH
Q ss_conf             33333210475430551----002388889874104662000000432-3232412340356
Q gi|255764505|r  218 VCASDVMHSGDSIPLVK----IGCPLIDAITILSEKRFGCVAVVDEGQ-KLKGIITEGDIFR  274 (341)
Q Consensus       218 l~V~DiM~~~~~ip~V~----~~~si~eal~~m~~~~~g~v~Vvd~~~-~liGIITdgDlrR  274 (341)
T Consensus        64 l~V~dvMt~~~~~~a~~~~~~~~a~v~d~~~~m~~~~~~hllVvd~~~~~l~GiiS~~DI~R  125 (126)
T cd04640          64 LTVADVMTPKEDLKALDLEELENASVGDVVETLKASGRQHALVVDREHHQIRGIISTSDIAR  125 (126)
T ss_pred             CCHHHCCCCCCCEEEECCCCCCCCCHHHHHHHHHHCCCEEEEEEECCCCEEEEEEEHHHHCC
T ss_conf             05313355452046302200034859999999998398087499899988989998799426