>cd03379 beta_CA_cladeD Carbonic anhydrases (CA) are zinc-containing enzymes that catalyze the reversible hydration of carbon dioxide in a two-step mechanism in which the nucleophilic attack of a zinc-bound hydroxide ion on carbon dioxide is followed by the regeneration of an active site by ionization of the zinc-bound water molecule and removal of a proton from the active site. CAs are ubiquitous enzymes involved in fundamental processes like photosynthesis, respiration, pH homeostasis and ion transport. There are three evolutionarily distinct families of CAs (the alpha-, beta-, and gamma-CAs) which show no significant sequence identity or structural similarity. Within the beta-CA family there are four evolutionarily distinct clades (A through D). The beta-CAs are multimeric enzymes (forming dimers,tetramers,hexamers and octamers) which are present in higher plants, algae, fungi, archaea and prokaryotes.

Probab=100.00 E-value=8.9e-39 Score=271.85 Aligned_cols=142 Identities=23% Similarity=0.325 Sum_probs=110.5 Q ss_pred CCCEEEEEECCCCCCCHHHHHCCCCCCEEEEECCCCCCCCCCCCCCCHHHHHHHHHHHHCCCCCEEEEEECCCHHHHHHH Q ss_conf 99759999626789988885178866248886242234577777530257888776722057668999815853898875 Q gi|254780663|r 32 QKPKIMIISCCDSRVAPETIFNAKPGELFVVRNVANIVPPYEPDGQHHATSAAIEFAVQGLNVEHIVVMGHGRCGGIQAV 111 (207) Q Consensus 32 q~P~~~vitC~DsRv~~~~i~~~~~Gd~fv~RnaGn~v~~~~~~~~~~~~~~sle~av~~l~v~~iiV~GHt~CGav~aa 111 (207) T Consensus 1 p~~k~~vitC~DSRv~p~~i~~~~pGdlfv~RNaGn~V~~--------~~~~si~~av~~L~v~~IvV~GHt~CGa~~~~ 72 (142) T cd03379 1 PARKLAIVTCMDARLDPEKALGLKLGDAKVIRNAGGRVTD--------DAIRSLVVSVYLLGTREIIVIHHTDCGMLTFT 72 (142) T ss_pred CCCEEEEEEECCCCCCHHHHCCCCCCCEEEEEECCCCCCH--------HHHHHHHHHHHHCCCCEEEEECCCCCCCEECC T ss_conf 9850899996254879899709998747999513342488--------89977999998429978999766675321237 Q ss_pred HHHHCCCCCCCCCHHHHHHHHHHHHHHHHHCCCHHHHHHHHHHHHHHHHHHHHCCHHHHHHHHCCCCEEEEEEEECCCCE Q ss_conf 30000134633101468988889999864016324687999999999999973097889999779967999999889876 Q gi|254780663|r 112 LDSNNSSTSPGDFIGKWMDIVRPIAQKIVANNPTEKQTILEQLSIRNSLKNIRNFPFVNKLEKEHMLQIHGAWFDISSGK 191 (207) Q Consensus 112 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~l~~~nV~~~v~~L~~~p~i~~~v~~g~l~I~G~~yDi~tG~ 191 (207) T Consensus 73 ~~~~~~~~~~-----~~----~~~~~~~~~~~~~~~~~~~~~~nV~~~v~~L~~~P~v~~-----~v~V~G~~Ydi~tG~ 138 (142) T cd03379 73 DEELKEKMKE-----RG----IAEAYGGIDKEFWFLGFDDLEESVREDVERIRNHPLIPD-----DVPVHGYVYDVKTGK 138 (142) T ss_pred HHHHHHHHHH-----CC----HHHHHCCCCCHHHHCCCCCHHHHHHHHHHHHHHCCCCCC-----CCEEEEEEEECCCCE T ss_conf 7999888886-----22----144532346255540344499999999999985917568-----988999999889987 Q ss_pred EEEE Q ss_conf 9998 Q gi|254780663|r 192 LWIL 195 (207) Q Consensus 192 v~~l 195 (207) T Consensus 139 v~~V 142 (142) T cd03379 139 LTEV 142 (142) T ss_pred EEEC T ss_conf 9869

HHsearch alignment for GI: 254780663 and conserved domain: cd03379