HHsearch alignment for GI: 254780942 and conserved domain: cd04645

>cd04645 LbH_gamma_CA_like Gamma carbonic anhydrase-like: This family is composed of gamma carbonic anhydrase (CA), Ferripyochelin Binding Protein (FBP), E. coli paaY protein, and similar proteins. CAs are zinc-containing enzymes that catalyze the reversible hydration of carbon dioxide in a two-step mechanism, involving the nucleophilic attack of a zinc-bound hydroxide ion on carbon dioxide, followed by the regeneration of the active site by ionization of the zinc-bound water molecule and removal of a proton from the active site. They are ubiquitous enzymes involved in fundamental processes like photosynthesis, respiration, pH homeostasis and ion transport. There are three evolutionary distinct groups - alpha, beta and gamma carbonic anhydrases - which show no significant sequence identity or structural similarity. Gamma CAs are trimeric enzymes with left-handed parallel beta helix (LbH) structural domain.
Probab=99.65  E-value=5.6e-16  Score=109.37  Aligned_cols=131  Identities=19%  Similarity=0.279  Sum_probs=81.8

Q ss_pred             ECCCCCEECCCCCCCCCCCCEEEECCCCCCCC----CCCCCCCCCCCCCCCCCCCEEECCCCCCCCEEEEECCCCCCCCC
Q ss_conf             31784100122322344200021116313433----21211121002134432000002586443202310211247854
Q gi|254780942|r  270 IQPDTVIEPHVFFGCGVSIENYVQIRAFSYLE----GVHIGKKTIIGPFARIRQETTIEKNVRIGNFCEVKKATIKEGSK  345 (442)
Q Consensus       270 I~~~~~I~~~~~Ig~~~~Ig~~~~I~~~~~i~----~~~Ig~~~~Ig~~~~i~~~s~i~~~~~Ig~~~ei~~s~i~~g~~  345 (442)
T Consensus         2 I~~~a~I~p~A~I~G~V~IG~~~~I~~~~~I~~d~~~i~IG~~~~I~~~~~Ih--~~~~~~~~IG~-----------~v~   68 (153)
T cd04645           2 IDPSAFIAPNATVIGDVTLGEGSSVWFGAVLRGDVNPIRIGERTNIQDGSVLH--VDPGYPTIIGD-----------NVT   68 (153)
T ss_pred             CCCCEEECCCCEEECCEEECCCCEECCCCEEECCCCCEEECCCCEECCCCCCC--CCCCCCCEECC-----------CCE
T ss_conf             18981999999997726998999996583842466635999998989685435--25999979899-----------989


Q ss_pred             CCCCCCCCCCEECCCCEECCCEEECCCCCCCCCCCEECCCCEECCCCEEECCEEECCCCEECCC-CEECCCCCCCC
Q ss_conf             4874555663988998997980883445775456298788798869989378398899899778-35766436986
Q gi|254780942|r  346 INHLSYVGDSVVGKNVNIGAGTITCNYDGTHKYKTHINENAFIGSNSSLIAPITIGQGTYVASG-SIITQDTPENS  420 (442)
Q Consensus       346 i~~~~~igd~~iG~~~~ig~g~i~~n~~g~~~~~~~ig~~~~iG~~~~i~~gv~ig~~~~i~ag-~~v~~dv~~~~  420 (442)
T Consensus        69 Ig~~~~i~g~~Ig~~~~IG~~a~I~~-------gv~IG~~~vIgagsvV~~~~~vp~~~v~~G~PAr~ir~~~~~e  137 (153)
T cd04645          69 VGHGAVLHGCTIGDNCLIGMGAIILD-------GAVIGKGSIVAAGSLVPPGKVIPPGSLVAGSPAKVVRELTDEE  137 (153)
T ss_pred             ECCCCEEECEEEEEEEEECCCCEECC-------CCEECCCCEECCCCEECCCCEECCCCEEEECCCEEECCCCHHH
T ss_conf             99995992418730047705439856-------9998899799449897489796998599962837971599999