RPSBLAST alignment for GI: 254780771 and conserved domain: cd04645

>gnl|CDD|100051 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.. Length = 153
 Score = 48.9 bits (118), Expect = 2e-06
 Identities = 28/97 (28%), Positives = 45/97 (46%), Gaps = 15/97 (15%)

Query: 119 ISPQAFLGEDVKIEDGVVIAPMAVV---YPGVEIGRKTYVGPGSVI----GAGVRIGRNC 171
           I+P A +  DV + +G  +   AV+      + IG +T +  GSV+    G    IG N 
Sbjct: 8   IAPNATVIGDVTLGEGSSVWFGAVLRGDVNPIRIGERTNIQDGSVLHVDPGYPTIIGDNV 67

Query: 172 SIGAGSSIYS------SLIG-NSVILHSGVRIGNDGF 201
           ++G G+ ++        LIG  ++IL  G  IG    
Sbjct: 68  TVGHGAVLHGCTIGDNCLIGMGAIIL-DGAVIGKGSI 103