RPSBLAST alignment for GI: 254780355 and conserved domain: cd06102

>gnl|CDD|99856 cd06102, citrate_synt_like_2, Citrate synthase (CS) catalyzes the condensation of acetyl coenzyme A (AcCoA) and oxalacetate (OAA) to form citrate and coenzyme A (CoA), the first step in the oxidative citric acid cycle (TCA or Krebs cycle). Peroxisomal CS is involved in the glyoxylate cycle. This group also includes CS proteins which functions as a 2-methylcitrate synthase (2MCS). 2MCS catalyzes the condensation of propionyl-CoA (PrCoA) and OAA to form 2-methylcitrate and CoA during propionate metabolism. This group contains proteins which functions exclusively as either a CS or a 2MCS, as well as those with relaxed specificity which have dual functions as both a CS and a 2MCS. The overall CS reaction is thought to proceed through three partial reactions and involves both closed and open conformational forms of the enzyme: a) the carbanion or equivalent is generated from AcCoA by base abstraction of a proton, b) the nucleophilic attack of this carbanion on OAA to generate citryl-CoA, and c) the hydrolysis of citryl-CoA to produce citrate and CoA. There are two types of CSs: type I CS and type II CSs. Type I CSs are found in eukarya, gram-positive bacteria, archaea, and in some gram-negative bacteria and are homodimers with both subunits participating in the active site. Type II CSs are unique to gram-negative bacteria and are homohexamers of identical subunits (approximated as a trimer of dimers). Some type II CSs are strongly and specifically inhibited by NADH through an allosteric mechanism. This subgroup includes both gram-positive and gram-negative bacteria.. Length = 282
 Score =  129 bits (326), Expect = 2e-30
 Identities = 67/207 (32%), Positives = 91/207 (43%), Gaps = 16/207 (7%)

Query: 210 QVNPLLARAMNRIFILHADHEQNASTSTVRLAGSSGADPFACIAAGVACLGGRAHGGANE 269
            ++P  A  + R  +L ADHE NAST   R+A S+GA  +A + AG+A L G  HGGA  
Sbjct: 92  GLDPAAADLLRRALVLLADHELNASTFAARVAASTGASLYAAVLAGLAALSGPRHGGATA 151

Query: 270 EALNMLMEIGSLERIPHYIMRAKDKNDPFRIMGFGHRVYRNHDPRCRIMRETMYEVLEVT 329
               +L E          +     + +   + GFGH +Y + DPR       +   L   
Sbjct: 152 RVEALLDEALRAGDAEAAVRERLRRGEA--LPGFGHPLYPDGDPRAA----ALLAALRPL 205

Query: 330 GRFNDPIAQVAIELERIALEDEYFIERKLYPNVDFYSGITLRALGFPTNLFTVLFAVART 389
           G    P A+  IE  R              PN+DF      RALG P      LFA+ R+
Sbjct: 206 GPAAPPAARALIEAARALTGA--------RPNIDFALAALTRALGLPAGAAFALFALGRS 257

Query: 390 AGWVSQWTEMIVDPSRRIGRPRQLYTG 416
           AGW++   E      + I RPR  Y G
Sbjct: 258 AGWIAHALEQRAQG-KLI-RPRARYVG 282