ID   GATA_STAAB              Reviewed;         485 AA.
AC   Q2YU51;
DT   27-JUN-2006, integrated into UniProtKB/Swiss-Prot.
DT   20-DEC-2005, sequence version 1.
DT   25-MAY-2022, entry version 93.
DE   RecName: Full=Glutamyl-tRNA(Gln) amidotransferase subunit A {ECO:0000255|HAMAP-Rule:MF_00120};
DE            Short=Glu-ADT subunit A {ECO:0000255|HAMAP-Rule:MF_00120};
DE            EC=6.3.5.7 {ECO:0000255|HAMAP-Rule:MF_00120};
GN   Name=gatA {ECO:0000255|HAMAP-Rule:MF_00120}; OrderedLocusNames=SAB1833c;
OS   Staphylococcus aureus (strain bovine RF122 / ET3-1).
OC   Bacteria; Firmicutes; Bacilli; Bacillales; Staphylococcaceae;
OC   Staphylococcus.
OX   NCBI_TaxID=273036;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=bovine RF122 / ET3-1;
RX   PubMed=17971880; DOI=10.1371/journal.pone.0001120;
RA   Herron-Olson L., Fitzgerald J.R., Musser J.M., Kapur V.;
RT   "Molecular correlates of host specialization in Staphylococcus aureus.";
RL   PLoS ONE 2:E1120-E1120(2007).
CC   -!- FUNCTION: Allows the formation of correctly charged Gln-tRNA(Gln)
CC       through the transamidation of misacylated Glu-tRNA(Gln) in organisms
CC       which lack glutaminyl-tRNA synthetase. The reaction takes place in the
CC       presence of glutamine and ATP through an activated gamma-phospho-Glu-
CC       tRNA(Gln). {ECO:0000255|HAMAP-Rule:MF_00120}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=ATP + H2O + L-glutamine + L-glutamyl-tRNA(Gln) = ADP + H(+) +
CC         L-glutamate + L-glutaminyl-tRNA(Gln) + phosphate;
CC         Xref=Rhea:RHEA:17521, Rhea:RHEA-COMP:9681, Rhea:RHEA-COMP:9684,
CC         ChEBI:CHEBI:15377, ChEBI:CHEBI:15378, ChEBI:CHEBI:29985,
CC         ChEBI:CHEBI:30616, ChEBI:CHEBI:43474, ChEBI:CHEBI:58359,
CC         ChEBI:CHEBI:78520, ChEBI:CHEBI:78521, ChEBI:CHEBI:456216; EC=6.3.5.7;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00120};
CC   -!- SUBUNIT: Heterotrimer of A, B and C subunits. {ECO:0000255|HAMAP-
CC       Rule:MF_00120}.
CC   -!- SIMILARITY: Belongs to the amidase family. GatA subfamily.
CC       {ECO:0000255|HAMAP-Rule:MF_00120}.
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DR   EMBL; AJ938182; CAI81522.1; -; Genomic_DNA.
DR   RefSeq; WP_000027930.1; NC_007622.1.
DR   AlphaFoldDB; Q2YU51; -.
DR   SMR; Q2YU51; -.
DR   KEGG; sab:SAB1833c; -.
DR   HOGENOM; CLU_009600_0_3_9; -.
DR   OMA; EVSCPHF; -.
DR   GO; GO:0030956; C:glutamyl-tRNA(Gln) amidotransferase complex; IEA:InterPro.
DR   GO; GO:0005524; F:ATP binding; IEA:UniProtKB-KW.
DR   GO; GO:0050567; F:glutaminyl-tRNA synthase (glutamine-hydrolyzing) activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0006412; P:translation; IEA:UniProtKB-UniRule.
DR   Gene3D; 3.90.1300.10; -; 1.
DR   HAMAP; MF_00120; GatA; 1.
DR   InterPro; IPR000120; Amidase.
DR   InterPro; IPR020556; Amidase_CS.
DR   InterPro; IPR023631; Amidase_dom.
DR   InterPro; IPR036928; AS_sf.
DR   InterPro; IPR004412; GatA.
DR   PANTHER; PTHR11895; PTHR11895; 1.
DR   Pfam; PF01425; Amidase; 1.
DR   SUPFAM; SSF75304; SSF75304; 1.
DR   TIGRFAMs; TIGR00132; gatA; 1.
DR   PROSITE; PS00571; AMIDASES; 1.
PE   3: Inferred from homology;
KW   ATP-binding; Ligase; Nucleotide-binding; Protein biosynthesis.
FT   CHAIN           1..485
FT                   /note="Glutamyl-tRNA(Gln) amidotransferase subunit A"
FT                   /id="PRO_0000241155"
FT   ACT_SITE        79
FT                   /note="Charge relay system"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00120"
FT   ACT_SITE        154
FT                   /note="Charge relay system"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00120"
FT   ACT_SITE        178
FT                   /note="Acyl-ester intermediate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00120"
SQ   SEQUENCE   485 AA;  52869 MW;  81DF1E8B0FE16DB1 CRC64;
     MSIRYESVEN LLTLIKDKKI KPSDVVKDVY DAIEETDPTI KSFLALDKEN AIKKAQELDE
     LQAKDQMDGK LFGIPMGIKD NIITNGLETT CASKMLEEFV PIYESTVMEK LHNENAVLIG
     KLNMDEFAMG GSTETSYFKK TVNPFDHKAV PGGSSGGSAA AVAAGLVPFS LGSDTGGSIR
     QPAAYCGVVG MKPTYGRVSR FGLVAFASSL DQIGPLTRNV KDNAIVLEAI SGADVNDSTS
     ASVDDVDFTS EIGKDIKGLK VALPKEYLGE GVADDVKEAV QNAVETLKSL GAVVEEVSLP
     NTKFGIPSYY VIASSEASSN LSRFDGIRYG YHSKEAHSLE ELYKMSRSEG FGKEVKRRIF
     LGTFALSSGY YDAYYKKSQK VRTLIKNDFD KVFENYDVVV GPTAPTTAFN LGEEIDDPLT
     MYANDLLTTP VNLAGLPGIS VPCGQSNGRP IGLQFIGKPF DEKTLYRVAY QYETQYNLHD
     VYEKL