HHsearch alignment for GI: 255764505 and conserved domain: cd04638

>cd04638 CBS_pair_25 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=98.56  E-value=2.4e-07  Score=73.77  Aligned_cols=55  Identities=31%  Similarity=0.350  Sum_probs=49.3

Q ss_pred             HHHHHHHCCCCCCEEEEEHHHHHHHHHHHHCCCCCEEEECCCCCEEEEEEECCCHHHH
Q ss_conf             3333321047543055100238888987410466200000043232324123403567
Q gi|255764505|r  218 VCASDVMHSGDSIPLVKIGCPLIDAITILSEKRFGCVAVVDEGQKLKGIITEGDIFRN  275 (341)
Q Consensus       218 l~V~DiM~~~~~ip~V~~~~si~eal~~m~~~~~g~v~Vvd~~~~liGIITdgDlrR~  275 (341)
T Consensus        52 ~~v~~iMt~--~~~tv~~~~~~~~a~~~m~~~~i~~lpVvd-~~~lvGiIt~~DilkA  106 (106)
T cd04638          52 EQLALLMTR--DPPTVSPDDDVKEAAKLMVENNIRRVPVVD-DGKLVGIVTVADIVRA  106 (106)
T ss_pred             CHHHHHHCC--CCEECCCCCCHHHHHHHHHHCCCCEEEEEE-CCEEEEEEEHHHHHCC
T ss_conf             244675358--973679949199999999876975999999-9999999997995359