ID   GATA_METBF              Reviewed;         475 AA.
AC   Q46E35;
DT   27-JUN-2006, integrated into UniProtKB/Swiss-Prot.
DT   13-SEP-2005, sequence version 1.
DT   25-MAY-2022, entry version 99.
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=Mbar_A0883;
OS   Methanosarcina barkeri (strain Fusaro / DSM 804).
OC   Archaea; Euryarchaeota; Stenosarchaea group; Methanomicrobia;
OC   Methanosarcinales; Methanosarcinaceae; Methanosarcina.
OX   NCBI_TaxID=269797;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=Fusaro / DSM 804;
RX   PubMed=16980466; DOI=10.1128/jb.00810-06;
RA   Maeder D.L., Anderson I., Brettin T.S., Bruce D.C., Gilna P., Han C.S.,
RA   Lapidus A., Metcalf W.W., Saunders E., Tapia R., Sowers K.R.;
RT   "The Methanosarcina barkeri genome: comparative analysis with
RT   Methanosarcina acetivorans and Methanosarcina mazei reveals extensive
RT   rearrangement within methanosarcinal genomes.";
RL   J. Bacteriol. 188:7922-7931(2006).
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; CP000099; AAZ69857.1; -; Genomic_DNA.
DR   RefSeq; WP_011305906.1; NC_007355.1.
DR   AlphaFoldDB; Q46E35; -.
DR   SMR; Q46E35; -.
DR   STRING; 269797.Mbar_A0883; -.
DR   EnsemblBacteria; AAZ69857; AAZ69857; Mbar_A0883.
DR   GeneID; 3626191; -.
DR   KEGG; mba:Mbar_A0883; -.
DR   eggNOG; arCOG01717; Archaea.
DR   HOGENOM; CLU_009600_0_3_2; -.
DR   OMA; EVSCPHF; -.
DR   OrthoDB; 12800at2157; -.
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..475
FT                   /note="Glutamyl-tRNA(Gln) amidotransferase subunit A"
FT                   /id="PRO_0000241181"
FT   ACT_SITE        69
FT                   /note="Charge relay system"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00120"
FT   ACT_SITE        144
FT                   /note="Charge relay system"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00120"
FT   ACT_SITE        168
FT                   /note="Acyl-ester intermediate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00120"
SQ   SEQUENCE   475 AA;  51051 MW;  94EEC4FC223BE440 CRC64;
     MAKWMSVAQV KEKIKESSAE EVTAQYLDTI GKSKVNGYIT VSEKALEQAK KIDVEGHNGP
     LAGVPIAIKD NISVVGLPNS CGSKILEDYI PPFNAYVIEK LLAAGAVILG KTNMDEFAMG
     SSTETSYFGP TANPWDLERV PGGSSGGSAA VVAAGEAPFA LGSDTGGSVR CPAAFCGVVG
     LKPTYGAVSR YGVVAYANSL EQVGPLANNV TDIAVLMDVI AGYDRKDSTS IDSKTEYQKA
     LIEDVKGLKI GVPKEFFGEG IHPDVEKAVW NAIHKCEDLG ASWEEVSMPH IKYALASYYI
     IAMSEASSNL ARFDGTRYGY RASGENWHAM VSKTRAEGFG TEVKRRILLG TYALSAGYHD
     KYYLKALKVR TLVKQDFDKA LSKVDVLMAP TMPNPAFKIG EKIEDPLTLY LSDVNTCPIN
     LAGVPSLSVP CGFTDGLPIG LQIMGKPFDE PAVLRAAYTF EQNTDYHTKR PPEVA