HHsearch alignment for GI: 254780889 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=98.51  E-value=3.3e-07  Score=71.11  Aligned_cols=48  Identities=31%  Similarity=0.486  Sum_probs=45.1

Q ss_pred             CCCCCCCCCCHHHHHHHHHHCCCCEEEEECCCCCEEEEEEECCCHHCC
Q ss_conf             863257303589999999865533064574799786889802100010
Q gi|254780889|r  162 NLITVKKTVNLENAKALLHQHRIEKLLVVDDDGCCIGLITVKDIERSQ  209 (493)
Q Consensus       162 ~litv~~~~~l~eA~~iM~~~ki~~LPVVDe~g~LvGIIT~~DIlk~~  209 (493)
T Consensus         2 ~Pvtv~~dtti~eA~~~M~~~~v~~l~VvD~~~~lvGIiT~~Dl~~~~   49 (126)
T cd04640           2 KPIVIPADTSIDEALELMIKHGVRLLLVVDSDDNFIGVITAVDLLGEE   49 (126)
T ss_pred             CCEEECCCCCHHHHHHHHHHHCCCEEEEECCCCCEEEEEECCCCCCCH
T ss_conf             896968999599999999983976798987999799999763001215