ID   SYDND_SYNY3             Reviewed;         599 AA.
AC   P73851;
DT   01-NOV-1997, integrated into UniProtKB/Swiss-Prot.
DT   01-FEB-1997, sequence version 1.
DT   27-MAR-2024, entry version 161.
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};
GN   OrderedLocusNames=slr1720;
OS   Synechocystis sp. (strain PCC 6803 / Kazusa).
OC   Bacteria; Cyanobacteriota; Cyanophyceae; Synechococcales; Merismopediaceae;
OC   Synechocystis.
OX   NCBI_TaxID=1111708;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=PCC 6803 / Kazusa;
RX   PubMed=8905231; DOI=10.1093/dnares/3.3.109;
RA   Kaneko T., Sato S., Kotani H., Tanaka A., Asamizu E., Nakamura Y.,
RA   Miyajima N., Hirosawa M., Sugiura M., Sasamoto S., Kimura T., Hosouchi T.,
RA   Matsuno A., Muraki A., Nakazaki N., Naruo K., Okumura S., Shimpo S.,
RA   Takeuchi C., Wada T., Watanabe A., Yamada M., Yasuda M., Tabata S.;
RT   "Sequence analysis of the genome of the unicellular cyanobacterium
RT   Synechocystis sp. strain PCC6803. II. Sequence determination of the entire
RT   genome and assignment of potential protein-coding regions.";
RL   DNA Res. 3:109-136(1996).
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; BA000022; BAA17910.1; -; Genomic_DNA.
DR   PIR; S75048; S75048.
DR   AlphaFoldDB; P73851; -.
DR   SMR; P73851; -.
DR   IntAct; P73851; 2.
DR   STRING; 1148.gene:10498779; -.
DR   PaxDb; 1148-1652993; -.
DR   EnsemblBacteria; BAA17910; BAA17910; BAA17910.
DR   KEGG; syn:slr1720; -.
DR   eggNOG; COG0173; Bacteria.
DR   InParanoid; P73851; -.
DR   PhylomeDB; P73851; -.
DR   Proteomes; UP000001425; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0004815; F:aspartate-tRNA ligase activity; IBA:GO_Central.
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; IBA:GO_Central.
DR   CDD; cd00777; AspRS_core; 1.
DR   CDD; cd04317; EcAspRS_like_N; 1.
DR   Gene3D; 3.30.1360.30; GAD-like domain; 1.
DR   Gene3D; 2.40.50.140; Nucleic acid-binding proteins; 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; IPR047089; Asp-tRNA-ligase_1_N.
DR   InterPro; IPR002312; Asp/Asn-tRNA-synth_IIb.
DR   InterPro; IPR047090; AspRS_core.
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   NCBIfam; TIGR00459; aspS_bact; 1.
DR   PANTHER; PTHR22594:SF5; ASPARTATE--TRNA LIGASE, MITOCHONDRIAL; 1.
DR   PANTHER; PTHR22594; ASPARTYL/LYSYL-TRNA SYNTHETASE; 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; SSF55681; Class II aaRS and biotin synthetases; 1.
DR   SUPFAM; SSF55261; GAD domain-like; 1.
DR   SUPFAM; SSF50249; Nucleic acid-binding proteins; 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..599
FT                   /note="Aspartate--tRNA(Asp/Asn) ligase"
FT                   /id="PRO_0000110967"
FT   REGION          202..205
FT                   /note="Aspartate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00044"
FT   BINDING         178
FT                   /ligand="L-aspartate"
FT                   /ligand_id="ChEBI:CHEBI:29991"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00044"
FT   BINDING         224..226
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00044"
FT   BINDING         224
FT                   /ligand="L-aspartate"
FT                   /ligand_id="ChEBI:CHEBI:29991"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00044"
FT   BINDING         233
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00044"
FT   BINDING         458
FT                   /ligand="L-aspartate"
FT                   /ligand_id="ChEBI:CHEBI:29991"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00044"
FT   BINDING         488
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00044"
FT   BINDING         495
FT                   /ligand="L-aspartate"
FT                   /ligand_id="ChEBI:CHEBI:29991"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00044"
FT   BINDING         540..543
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"
SQ   SEQUENCE   599 AA;  67209 MW;  2B89C952C82A5246 CRC64;
     MRTHYCGDLR TTHLGETVTL YGWVDRRRDH GGVIFLDLRD RQGIVQIASS PDQTPASYPV
     AEGLRNEYVV QVTGVVSKRP PESLNEKIPT GEIEIYADSI ILLNGVNQQL PFVVSSHEAE
     QVREDVRLKY RYLDLRRARL SQNLQLRHQV VKAMRRFLED QENFLEIETP ILTRSTPEGA
     RDYLVPSRVN PGEWYALPQS PQLFKQLLMV AGMDRYYQIA RCFRDEDLRA DRQPEFTQLD
     MEMSFMGQEE ILDLNEALIC HIFKVVKNID LPRPFPRLTY QESMAKYGND RPDTRFGLEL
     VDVSDLLGNT GFKVFSAAVS SGGSIKAIRV PGGNETISNV RIKPGGDLFK EATEAGAKGI
     AYIRVRDNGE IDTIGAIKEN LDEAQVKTLL QLTQAEAGDL LLFGAGDTAT VDKSLSRLRL
     VLGEQLGLID PDAINLLWIT DFPMFEWNSD EKRFEALHHP FTAPHPDDLG DLKTARAQAY
     DLVMNGVEIG GGSLRIYQRE VQEKVFATIG LSPEEAHEKF GFLLDAFEYG TPPHGGIAYG
     LDRLVMLLAK EDSIRDVIAF PKTQQASCLL TEAPAAVDKK QLKELSVAST YVPKVKVDD
//