>gnl|CDD|153210 cd01653, GATase1, Type 1 glutamine amidotransferase (GATase1)-like domain. Type 1 glutamine amidotransferase (GATase1)-like domain. This group includes proteins similar to Class I glutamine amidotransferases, the intracellular PH1704 from Pyrococcus horikoshii, the C-terminal of the large catalase: Escherichia coli HP-II, Sinorhizobium meliloti Rm1021 ThuA. and, the A4 beta-galactosidase middle domain. The majority of proteins in this group have a reactive Cys found in the sharp turn between a beta strand and an alpha helix termed the nucleophile elbow. For Class I glutamine amidotransferases proteins which transfer ammonia from the amide side chain of glutamine to an acceptor substrate, this Cys forms a Cys-His-Glu catalytic triad in the active site. Glutamine amidotransferases activity can be found in a range of biosynthetic enzymes included in this cd: glutamine amidotransferase, formylglycinamide ribonucleotide, GMP synthetase, anthranilate synthase component II, glutamine-dependent carbamoyl phosphate synthase, cytidine triphosphate synthetase, gamma-glutamyl hydrolase, imidazole glycerol phosphate synthase and, cobyric acid synthase. For Pyrococcus horikoshii PH1704, the Cys of the nucleophile elbow together with a different His and, a Glu from an adjacent monomer form a catalytic triad different from the typical GATase1 triad. The E. coli HP-II C-terminal domain, S. meliloti Rm1021 ThuA and the A4 beta-galactosidase middle domain lack the catalytic triad typical GATaseI domains. GATase1-like domains can occur either as single polypeptides, as in Class I glutamine amidotransferases, or as domains in a much larger multifunctional synthase protein, such as CPSase. Length = 115

 Score = 42.6 bits (100), Expect = 3e-04
 Identities = 18/92 (19%), Positives = 35/92 (38%), Gaps = 9/92 (9%)

Query: 10 VLIIDFGSQFT---QLIARRVRESKVYCEVIAFKNALDYFKEQ--NPQAIILSGSPASSL 64
          V ++ F              +RE+    +V++             +   +IL G P +  
Sbjct: 1  VAVLLFPGFEELELASPLDALREAGAEVDVVSPDGGPVESDVDLDDYDGLILPGGPGTPD 60

Query: 65 DIDSPQIP----KEILESNIPLLGICYGQQIM 92
          D+   +      +E   +  P+LGIC G Q++
Sbjct: 61 DLARDEALLALLREAAAAGKPILGICLGAQLL 92