ID   GATA_SYNP6              Reviewed;         479 AA.
AC   Q5N0K5;
DT   27-JUN-2006, integrated into UniProtKB/Swiss-Prot.
DT   01-FEB-2005, sequence version 1.
DT   25-MAY-2022, entry version 87.
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=syc1975_d;
OS   Synechococcus sp. (strain ATCC 27144 / PCC 6301 / SAUG 1402/1) (Anacystis
OS   nidulans).
OC   Bacteria; Cyanobacteria; Synechococcales; Synechococcaceae; Synechococcus.
OX   NCBI_TaxID=269084;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 27144 / PCC 6301 / SAUG 1402/1;
RX   PubMed=17211581; DOI=10.1007/s11120-006-9122-4;
RA   Sugita C., Ogata K., Shikata M., Jikuya H., Takano J., Furumichi M.,
RA   Kanehisa M., Omata T., Sugiura M., Sugita M.;
RT   "Complete nucleotide sequence of the freshwater unicellular cyanobacterium
RT   Synechococcus elongatus PCC 6301 chromosome: gene content and
RT   organization.";
RL   Photosyn. Res. 93:55-67(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; AP008231; BAD80165.1; -; Genomic_DNA.
DR   RefSeq; WP_011244285.1; NC_006576.1.
DR   AlphaFoldDB; Q5N0K5; -.
DR   SMR; Q5N0K5; -.
DR   STRING; 269084.syc1975_d; -.
DR   EnsemblBacteria; BAD80165; BAD80165; syc1975_d.
DR   KEGG; syc:syc1975_d; -.
DR   eggNOG; COG0154; Bacteria.
DR   OMA; EVSCPHF; -.
DR   Proteomes; UP000001175; Chromosome.
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..479
FT                   /note="Glutamyl-tRNA(Gln) amidotransferase subunit A"
FT                   /id="PRO_0000241166"
FT   ACT_SITE        75
FT                   /note="Charge relay system"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00120"
FT   ACT_SITE        150
FT                   /note="Charge relay system"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00120"
FT   ACT_SITE        174
FT                   /note="Acyl-ester intermediate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00120"
SQ   SEQUENCE   479 AA;  50965 MW;  99E22BF66903544E CRC64;
     MASIRELHSQ LVRKERSAVE IAEAALQRIE TLEPQLKSFL HVTADQAIAQ AKAVDQRIAA
     GEEISLLAGI PIGIKDNLCT RGIPTTCASK ILQGFVPPYE STVTQRLAEA GAVAVGKTNL
     DEFAVGSSTE NSAYQTTANP WDLTRVPGGS SGGSAAAVAA DECVVALGSD TGGSIRQPAA
     FCGVVGLKPT YGLVSRYGLV AYASSLDQIG PFSRSVEDTA ILLGAIAGHD PKDATSLKVE
     VPDYTQFLKP SLAGIKVGVI TETVTDSPAG QAMQAALEVL QGLGAEIREI SCPRFAYGLP
     AYYIIAPSEA SANLARYDGV KYGYRVEEAE TLIDMYCRTR AEGFGSEVKR RIMIGTYALS
     AGYYDAYYLK AQKVRTLIKQ DFEAAFAEVD VLVSPTTPTT AFKAGEKTAD PLSMYLSDLM
     TIPVNSAGLP GLSLPCGFDE AGLPYGLQII GNVLREDQVL HTAYAYEQAT EWHLRQPAL