HHsearch alignment for GI: 255764505 and conserved domain: cd04634

>cd04634 CBS_pair_21 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=98.46  E-value=6e-07  Score=70.93  Aligned_cols=54  Identities=24%  Similarity=0.450  Sum_probs=49.4

Q ss_pred             HHHHHHHCCCCCCEEEEEHHHHHHHHHHHHCCCCCEEEECCCCCEEEEEEECCCHHH
Q ss_conf             333332104754305510023888898741046620000004323232412340356
Q gi|255764505|r  218 VCASDVMHSGDSIPLVKIGCPLIDAITILSEKRFGCVAVVDEGQKLKGIITEGDIFR  274 (341)
Q Consensus       218 l~V~DiM~~~~~ip~V~~~~si~eal~~m~~~~~g~v~Vvd~~~~liGIITdgDlrR  274 (341)
T Consensus        89 ~~v~diM~~--~~itv~~~~~l~~a~~~m~~~~i~~lPVvd-~~~lvGIItr~Dilk  142 (143)
T cd04634          89 MKVRDIMTK--KVITISPDASIEDAAELMVRHKIKRLPVVE-DGRLVGIVTRGDIIE  142 (143)
T ss_pred             CCHHHHCCC--CCEEECCCCCHHHHHHHHHHCCCCEEEEEE-CCEEEEEEEHHHCCC
T ss_conf             898995888--987998989699999999973988899998-999999999577308