HHsearch alignment for GI: 254780426 and conserved domain: cd04621

>cd04621 CBS_pair_8 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 genera
Probab=98.07  E-value=3.1e-06  Score=60.69  Aligned_cols=47  Identities=17%  Similarity=0.387  Sum_probs=25.4

Q ss_pred             CEEECCCCCHHHHHHHHHCCCCCCEEEEECCCCCEEEEEHHHHHHHH
Q ss_conf             57971788512323432013565116540776620466758899998
Q gi|254780426|r  171 ILFVPSSMLVSDLLTNIQESRIRMALVIDEHGGTDGLVSYEDIVSVL  217 (320)
Q Consensus       171 ~~~Vpe~~~l~~lL~~m~~~~~~~aiVvDE~G~~~GiVTleDIle~i  217 (320)
T Consensus         3 Vitv~p~~tl~ea~~~m~~~~i~~lpVvd~~g~lvGivT~~Dl~~~~   49 (135)
T cd04621           3 IATVHPEHSLLHVVDEMEKNGVGRVIVVDDNGKPVGVITYRDLAFAE   49 (135)
T ss_pred             CEEECCCCCHHHHHHHHHHCCCCEEEEECCCCEEEEEEEHHHHHHHH
T ss_conf             68989949799999999874997799995999399999879988666