ID   SYE2_ORITI              Reviewed;         474 AA.
AC   B3CST4;
DT   24-MAR-2009, integrated into UniProtKB/Swiss-Prot.
DT   24-MAR-2009, sequence version 2.
DT   03-AUG-2022, entry version 68.
DE   RecName: Full=Glutamate--tRNA ligase 2 {ECO:0000255|HAMAP-Rule:MF_00022};
DE            EC=6.1.1.17 {ECO:0000255|HAMAP-Rule:MF_00022};
DE   AltName: Full=Glutamyl-tRNA synthetase 2 {ECO:0000255|HAMAP-Rule:MF_00022};
DE            Short=GluRS 2 {ECO:0000255|HAMAP-Rule:MF_00022};
GN   Name=gltX2 {ECO:0000255|HAMAP-Rule:MF_00022}; OrderedLocusNames=OTT_0973;
OS   Orientia tsutsugamushi (strain Ikeda) (Rickettsia tsutsugamushi).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Rickettsiales;
OC   Rickettsiaceae; Rickettsieae; Orientia.
OX   NCBI_TaxID=334380;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=Ikeda;
RX   PubMed=18508905; DOI=10.1093/dnares/dsn011;
RA   Nakayama K., Yamashita A., Kurokawa K., Morimoto T., Ogawa M., Fukuhara M.,
RA   Urakami H., Ohnishi M., Uchiyama I., Ogura Y., Ooka T., Oshima K.,
RA   Tamura A., Hattori M., Hayashi T.;
RT   "The whole-genome sequencing of the obligate intracellular bacterium
RT   Orientia tsutsugamushi revealed massive gene amplification during reductive
RT   genome evolution.";
RL   DNA Res. 15:185-199(2008).
CC   -!- FUNCTION: Catalyzes the attachment of glutamate to tRNA(Glu) in a two-
CC       step reaction: glutamate is first activated by ATP to form Glu-AMP and
CC       then transferred to the acceptor end of tRNA(Glu). {ECO:0000255|HAMAP-
CC       Rule:MF_00022}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=ATP + L-glutamate + tRNA(Glu) = AMP + diphosphate + L-
CC         glutamyl-tRNA(Glu); Xref=Rhea:RHEA:23540, Rhea:RHEA-COMP:9663,
CC         Rhea:RHEA-COMP:9680, ChEBI:CHEBI:29985, ChEBI:CHEBI:30616,
CC         ChEBI:CHEBI:33019, ChEBI:CHEBI:78442, ChEBI:CHEBI:78520,
CC         ChEBI:CHEBI:456215; EC=6.1.1.17; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_00022};
CC   -!- SUBUNIT: Monomer. {ECO:0000255|HAMAP-Rule:MF_00022}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00022}.
CC   -!- SIMILARITY: Belongs to the class-I aminoacyl-tRNA synthetase family.
CC       Glutamate--tRNA ligase type 1 subfamily. {ECO:0000255|HAMAP-
CC       Rule:MF_00022}.
CC   -!- SEQUENCE CAUTION:
CC       Sequence=BAG40431.1; Type=Erroneous initiation; Evidence={ECO:0000305};
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DR   EMBL; AP008981; BAG40431.1; ALT_INIT; Genomic_DNA.
DR   RefSeq; WP_041621635.1; NC_010793.1.
DR   AlphaFoldDB; B3CST4; -.
DR   SMR; B3CST4; -.
DR   EnsemblBacteria; BAG40431; BAG40431; OTT_0973.
DR   GeneID; 66653021; -.
DR   KEGG; ott:OTT_0973; -.
DR   HOGENOM; CLU_015768_6_3_5; -.
DR   OrthoDB; 1409413at2; -.
DR   Proteomes; UP000001033; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0005524; F:ATP binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0004818; F:glutamate-tRNA ligase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0000049; F:tRNA binding; IEA:InterPro.
DR   GO; GO:0008270; F:zinc ion binding; IEA:InterPro.
DR   GO; GO:0006424; P:glutamyl-tRNA aminoacylation; IEA:UniProtKB-UniRule.
DR   CDD; cd00808; GluRS_core; 1.
DR   Gene3D; 1.10.10.350; -; 1.
DR   Gene3D; 3.40.50.620; -; 1.
DR   HAMAP; MF_00022; Glu_tRNA_synth_type1; 1.
DR   InterPro; IPR045462; aa-tRNA-synth_I_cd-bd.
DR   InterPro; IPR020751; aa-tRNA-synth_I_codon-bd_sub2.
DR   InterPro; IPR001412; aa-tRNA-synth_I_CS.
DR   InterPro; IPR008925; aa_tRNA-synth_I_cd-bd_sf.
DR   InterPro; IPR004527; Glu-tRNA-ligase_bac/mito.
DR   InterPro; IPR000924; Glu/Gln-tRNA-synth.
DR   InterPro; IPR020058; Glu/Gln-tRNA-synth_Ib_cat-dom.
DR   InterPro; IPR033910; GluRS_core.
DR   InterPro; IPR014729; Rossmann-like_a/b/a_fold.
DR   Pfam; PF19269; Anticodon_2; 1.
DR   Pfam; PF00749; tRNA-synt_1c; 1.
DR   PRINTS; PR00987; TRNASYNTHGLU.
DR   SUPFAM; SSF48163; SSF48163; 1.
DR   TIGRFAMs; TIGR00464; gltX_bact; 1.
DR   PROSITE; PS00178; AA_TRNA_LIGASE_I; 1.
PE   3: Inferred from homology;
KW   Aminoacyl-tRNA synthetase; ATP-binding; Cytoplasm; Ligase;
KW   Nucleotide-binding; Protein biosynthesis.
FT   CHAIN           1..474
FT                   /note="Glutamate--tRNA ligase 2"
FT                   /id="PRO_0000367728"
FT   MOTIF           10..20
FT                   /note="'HIGH' region"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00022"
FT   MOTIF           242..246
FT                   /note="'KMSKS' region"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00022"
FT   BINDING         245
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00022"
SQ   SEQUENCE   474 AA;  53576 MW;  3ACE63C5EB0C601A CRC64;
     MTNIVTRFAP SPTGFLHIGG ARTALFNYLF ARHHKGKFLL RIEDTDAARS TEEYKLGIID
     SLKWLKINWD NDIFYQSANL QRHVNVALEL VKSGKAYYCF TSQEEIDLQR QLAIAQKQSF
     IFRSPWRNNI PSSLSLKNNN KAYVIRFKAP NHGTTIINDY VQGKVVFQNQ QIDDMILVRS
     DGTPTYMLAV VVDDHDMGIT HIIRGDDHLT NAAKQIALYD ALGWKAPAMV HIPLIYGPDG
     TKLSKRHGAI GVDAYQKMGY LPEALCNYLL RLGWSYQDEE IISHERAIKL FDIDGLGKSA
     ARLDFDKMLY LNGYYIRSTD NSILAKLVIE ILSKQYILSN ESCNLIQKGM SGLKSRANLL
     TDLAENAKIY VLENQLTFVN EALNIIQKTP SMLITEVIDI INNLQELNCE SVKQSLTEFA
     KVKHMKLGQL MDPIRALLTG NTKSPSIFEV IPILGKIHAV KRLADIEAIK SNNQ