HHsearch alignment for GI: 255764470 and conserved domain: cd04639

>cd04639 CBS_pair_26 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=97.43  E-value=0.00035  Score=49.58  Aligned_cols=49  Identities=20%  Similarity=0.223  Sum_probs=28.2

Q ss_pred             CEEECCCCCHHHHHHHHHHCCCEEEEEECCCCCEEEEEEHHHHHHHHCC
Q ss_conf             4352389998999998850386277752286742565259999998706
Q gi|255764470|r  378 PLVVHENISVLKLMERLRKSSQTFVMVLDEYGVLEGMITPANILEAIAG  426 (523)
Q Consensus       378 ~~~Vpe~~~l~~lL~~fr~~~~~lAiVvDE~G~~~GIVTleDIlE~IvG  426 (523)
T Consensus         3 ~~Tv~p~~tl~~a~~~~~~~~~~~~PVvd~~g~lvGivt~~di~~~l~~   51 (111)
T cd04639           3 FETLSPADTLDDAADALLATTQHEFPVVDGDGHLVGLLTRDDLIRALAE   51 (111)
T ss_pred             CEEECCCCCHHHHHHHHHHHCCCEEEEEECCCCEEEEEEHHHHHHHHHC
T ss_conf             8792998979999999997199789999389988999989999999872