ID   SYDND_PSYA2             Reviewed;         608 AA.
AC   Q4FSF4;
DT   16-MAY-2006, integrated into UniProtKB/Swiss-Prot.
DT   30-AUG-2005, sequence version 1.
DT   03-AUG-2022, entry version 124.
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=Psyc_1203;
OS   Psychrobacter arcticus (strain DSM 17307 / VKM B-2377 / 273-4).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Moraxellales; Moraxellaceae;
OC   Psychrobacter.
OX   NCBI_TaxID=259536;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=DSM 17307 / VKM B-2377 / 273-4;
RX   PubMed=20154119; DOI=10.1128/aem.02101-09;
RA   Ayala-del-Rio H.L., Chain P.S., Grzymski J.J., Ponder M.A., Ivanova N.,
RA   Bergholz P.W., Di Bartolo G., Hauser L., Land M., Bakermans C.,
RA   Rodrigues D., Klappenbach J., Zarka D., Larimer F., Richardson P.,
RA   Murray A., Thomashow M., Tiedje J.M.;
RT   "The genome sequence of Psychrobacter arcticus 273-4, a psychroactive
RT   Siberian permafrost bacterium, reveals mechanisms for adaptation to low-
RT   temperature growth.";
RL   Appl. Environ. Microbiol. 76:2304-2312(2010).
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; CP000082; AAZ19054.1; -; Genomic_DNA.
DR   RefSeq; WP_011280476.1; NC_007204.1.
DR   AlphaFoldDB; Q4FSF4; -.
DR   SMR; Q4FSF4; -.
DR   STRING; 259536.Psyc_1203; -.
DR   EnsemblBacteria; AAZ19054; AAZ19054; Psyc_1203.
DR   KEGG; par:Psyc_1203; -.
DR   eggNOG; COG0173; Bacteria.
DR   HOGENOM; CLU_014330_3_2_6; -.
DR   OMA; YQLDVEM; -.
DR   OrthoDB; 226836at2; -.
DR   Proteomes; UP000000546; 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; Reference proteome.
FT   CHAIN           1..608
FT                   /note="Aspartate--tRNA(Asp/Asn) ligase"
FT                   /id="PRO_0000235549"
FT   REGION          203..206
FT                   /note="Aspartate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00044"
FT   BINDING         179
FT                   /ligand="L-aspartate"
FT                   /ligand_id="ChEBI:CHEBI:29991"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00044"
FT   BINDING         225..227
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00044"
FT   BINDING         225
FT                   /ligand="L-aspartate"
FT                   /ligand_id="ChEBI:CHEBI:29991"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00044"
FT   BINDING         234
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00044"
FT   BINDING         461
FT                   /ligand="L-aspartate"
FT                   /ligand_id="ChEBI:CHEBI:29991"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00044"
FT   BINDING         494
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00044"
FT   BINDING         501
FT                   /ligand="L-aspartate"
FT                   /ligand_id="ChEBI:CHEBI:29991"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00044"
FT   BINDING         546..549
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00044"
FT   SITE            35
FT                   /note="Important for tRNA non-discrimination"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00044"
FT   SITE            86
FT                   /note="Important for tRNA non-discrimination"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00044"
SQ   SEQUENCE   608 AA;  68231 MW;  CF7653C793505DD5 CRC64;
     MTHSEYRDEY CGAVTESLIE QTISVVGWVH RRRDHGGVIF LDMRDRAGIL QVVVDPDTPE
     AFATADAVRP EYVLKITGRV RRRYEGTENA NMTSGHIELL AKEIEVLAKS ETPPFPLNDE
     KSTVSEDLRL KYRYLDMRRP QMQDRMVFRA KATSAIRRYL DDHGFLDVET PILTRATPEG
     ARDYLVPSRT RPGNFFALPQ SPQLFKQLLM VAGFDRYYQI AKCFRDEDLR ADRQPEFTQV
     DIETSFLNEE EIMNINEGLI KHVFKTMMDV EFEKFPRMTY AEAMRDYASD KPDLRIPLKL
     IDVADLMKDV DFKVFAGPAN DPKGRVAALR IPGGASLSRK QIDAYTKFVG IYGARGLAYI
     KVNDASNINN GVDKESGLQS PIIKNMTDDV LVSLIERTGA ESNDIIFFGA DKASVVNDAI
     GALRQKIGLD LEMTTCEWAP LWVTDFPMFE ETEDGRWTSM HHPFTKPKGS VEELKTNPES
     ALSIAYDMVL NGTEVGGGSL RINTLEMQTA VFEALGIDDQ EAEDKFGFLL DALKFGAPPH
     GGLAFGLDRL IMLMVGASSI RDVIAFPKTK TAECPLTQAP AEVNTKQLRE LGIRVREKVQ
     ADTSKPAE