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SYDND_HELPG
ID   SYDND_HELPG             Reviewed;         577 AA.
AC   B5Z6Y8;
DT   24-MAR-2009, integrated into UniProtKB/Swiss-Prot.
DT   25-NOV-2008, sequence version 1.
DT   03-AUG-2022, entry version 79.
DE   RecName: Full=Aspartate--tRNA(Asp/Asn) ligase {ECO:0000255|HAMAP-Rule:MF_00044};
DE            EC=6.1.1.23 {ECO:0000255|HAMAP-Rule:MF_00044};
DE   AltName: Full=Aspartyl-tRNA synthetase {ECO:0000255|HAMAP-Rule:MF_00044};
DE            Short=AspRS {ECO:0000255|HAMAP-Rule:MF_00044};
DE   AltName: Full=Non-discriminating aspartyl-tRNA synthetase {ECO:0000255|HAMAP-Rule:MF_00044};
DE            Short=ND-AspRS {ECO:0000255|HAMAP-Rule:MF_00044};
GN   Name=aspS {ECO:0000255|HAMAP-Rule:MF_00044}; OrderedLocusNames=HPG27_577;
OS   Helicobacter pylori (strain G27).
OC   Bacteria; Proteobacteria; Epsilonproteobacteria; Campylobacterales;
OC   Helicobacteraceae; Helicobacter.
OX   NCBI_TaxID=563041;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=G27;
RX   PubMed=18952803; DOI=10.1128/jb.01416-08;
RA   Baltrus D.A., Amieva M.R., Covacci A., Lowe T.M., Merrell D.S.,
RA   Ottemann K.M., Stein M., Salama N.R., Guillemin K.;
RT   "The complete genome sequence of Helicobacter pylori strain G27.";
RL   J. Bacteriol. 191:447-448(2009).
CC   -!- FUNCTION: Aspartyl-tRNA synthetase with relaxed tRNA specificity since
CC       it is able to aspartylate not only its cognate tRNA(Asp) but also
CC       tRNA(Asn). Reaction proceeds in two steps: L-aspartate is first
CC       activated by ATP to form Asp-AMP and then transferred to the acceptor
CC       end of tRNA(Asp/Asn). {ECO:0000255|HAMAP-Rule:MF_00044}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=ATP + L-aspartate + tRNA(Asx) = AMP + diphosphate + L-
CC         aspartyl-tRNA(Asx); Xref=Rhea:RHEA:18349, Rhea:RHEA-COMP:9710,
CC         Rhea:RHEA-COMP:9711, ChEBI:CHEBI:29991, ChEBI:CHEBI:30616,
CC         ChEBI:CHEBI:33019, ChEBI:CHEBI:78442, ChEBI:CHEBI:78516,
CC         ChEBI:CHEBI:456215; EC=6.1.1.23; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_00044};
CC   -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_00044}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00044}.
CC   -!- SIMILARITY: Belongs to the class-II aminoacyl-tRNA synthetase family.
CC       Type 1 subfamily. {ECO:0000255|HAMAP-Rule:MF_00044}.
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DR   EMBL; CP001173; ACI27337.1; -; Genomic_DNA.
DR   RefSeq; WP_001256447.1; NC_011333.1.
DR   AlphaFoldDB; B5Z6Y8; -.
DR   SMR; B5Z6Y8; -.
DR   EnsemblBacteria; ACI27337; ACI27337; HPG27_577.
DR   KEGG; hpg:HPG27_577; -.
DR   HOGENOM; CLU_014330_3_2_7; -.
DR   OMA; YQLDVEM; -.
DR   OrthoDB; 226836at2; -.
DR   Proteomes; UP000001735; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0004815; F:aspartate-tRNA ligase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0050560; F:aspartate-tRNA(Asn) ligase activity; IEA:UniProtKB-EC.
DR   GO; GO:0005524; F:ATP binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0003676; F:nucleic acid binding; IEA:InterPro.
DR   GO; GO:0006422; P:aspartyl-tRNA aminoacylation; IEA:UniProtKB-UniRule.
DR   Gene3D; 2.40.50.140; -; 1.
DR   Gene3D; 3.30.1360.30; -; 1.
DR   Gene3D; 3.30.930.10; -; 1.
DR   HAMAP; MF_00044; Asp_tRNA_synth_type1; 1.
DR   InterPro; IPR004364; Aa-tRNA-synt_II.
DR   InterPro; IPR006195; aa-tRNA-synth_II.
DR   InterPro; IPR045864; aa-tRNA-synth_II/BPL/LPL.
DR   InterPro; IPR004524; Asp-tRNA-ligase_1.
DR   InterPro; IPR002312; Asp/Asn-tRNA-synth_IIb.
DR   InterPro; IPR004115; GAD-like_sf.
DR   InterPro; IPR029351; GAD_dom.
DR   InterPro; IPR012340; NA-bd_OB-fold.
DR   InterPro; IPR004365; NA-bd_OB_tRNA.
DR   PANTHER; PTHR22594:SF5; PTHR22594:SF5; 1.
DR   Pfam; PF02938; GAD; 1.
DR   Pfam; PF00152; tRNA-synt_2; 1.
DR   Pfam; PF01336; tRNA_anti-codon; 1.
DR   PRINTS; PR01042; TRNASYNTHASP.
DR   SUPFAM; SSF50249; SSF50249; 1.
DR   SUPFAM; SSF55261; SSF55261; 1.
DR   SUPFAM; SSF55681; SSF55681; 1.
DR   TIGRFAMs; TIGR00459; aspS_bact; 1.
DR   PROSITE; PS50862; AA_TRNA_LIGASE_II; 1.
PE   3: Inferred from homology;
KW   Aminoacyl-tRNA synthetase; ATP-binding; Cytoplasm; Ligase;
KW   Nucleotide-binding; Protein biosynthesis.
FT   CHAIN           1..577
FT                   /note="Aspartate--tRNA(Asp/Asn) ligase"
FT                   /id="PRO_1000090999"
FT   REGION          195..198
FT                   /note="Aspartate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00044"
FT   BINDING         171
FT                   /ligand="L-aspartate"
FT                   /ligand_id="ChEBI:CHEBI:29991"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00044"
FT   BINDING         217..219
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00044"
FT   BINDING         217
FT                   /ligand="L-aspartate"
FT                   /ligand_id="ChEBI:CHEBI:29991"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00044"
FT   BINDING         226
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00044"
FT   BINDING         444
FT                   /ligand="L-aspartate"
FT                   /ligand_id="ChEBI:CHEBI:29991"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00044"
FT   BINDING         474
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00044"
FT   BINDING         481
FT                   /ligand="L-aspartate"
FT                   /ligand_id="ChEBI:CHEBI:29991"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00044"
FT   BINDING         526..529
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00044"
FT   SITE            30
FT                   /note="Important for tRNA non-discrimination"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00044"
FT   SITE            80
FT                   /note="Important for tRNA non-discrimination"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00044"
SQ   SEQUENCE   577 AA;  65338 MW;  F980FA24578B1BAA CRC64;
     MRSHFCTEIS EKDVGKTIKV AGWCNTYRDH GGVVFIDLRD KSGLVQLVCD PSSKAYEKAL
     EVRSEFVLVA KGKARLRGPG LENPKLKTGK IEIVLEELVI ENKSATPPIE IGNKSVNEDL
     RLKYRYLDLR SPNSYEIFKL RSEVALITRN TLAQKGFLEI ETPILSKTTP EGARDYLVPS
     RVHEGEFFAL PQSPQLFKQL LMVGGMDRYF QIARCFRDED LRADRQPEFT QIDAEMSFCD
     ENDVMGVVED LLQAIFKAIG HTISKPFKRM PYKEAMENYG SDKPDLRFKL PLIEVGDCFM
     DSSNAIFSNI AKDPKNKRIK ALNVKGADAL FSRSVLKELE EFVRQFGAKG LAYLQIKEDG
     IKGPLVKFLS EKGLKNILEK TGAKTGDIVF FGAGDKKIVL DYMGRLRLKV AETLDLIDKD
     ALNFLWVVNF PMFEKTENGY HAAHHPFTMP KNIECEDIEE IEAHAYDVVL NGVELGGGSI
     RIHKEEMQKK VFEKINIHEE EAQKKFGFLL EALKFGAPPH GGFAIGFDRL IMLMTKSHSI
     RDVIAFPKTQ KASCLLTNAP SPINEEQLRE LHIRLRK
 
 
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