ID SYDND_AERPE Reviewed; 442 AA.
AC Q9Y9U7;
DT 30-MAY-2000, integrated into UniProtKB/Swiss-Prot.
DT 30-MAY-2000, sequence version 2.
DT 27-MAR-2024, entry version 136.
DE RecName: Full=Aspartate--tRNA(Asp/Asn) ligase;
DE EC=6.1.1.23;
DE AltName: Full=Aspartyl-tRNA synthetase;
DE Short=AspRS;
DE AltName: Full=Non-discriminating aspartyl-tRNA synthetase;
DE Short=ND-AspRS;
GN Name=aspS; OrderedLocusNames=APE_2192.1;
OS Aeropyrum pernix (strain ATCC 700893 / DSM 11879 / JCM 9820 / NBRC 100138 /
OS K1).
OC Archaea; Thermoproteota; Thermoprotei; Desulfurococcales;
OC Desulfurococcaceae; Aeropyrum.
OX NCBI_TaxID=272557;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 700893 / DSM 11879 / JCM 9820 / NBRC 100138 / K1;
RX PubMed=10382966; DOI=10.1093/dnares/6.2.83;
RA Kawarabayasi Y., Hino Y., Horikawa H., Yamazaki S., Haikawa Y., Jin-no K.,
RA Takahashi M., Sekine M., Baba S., Ankai A., Kosugi H., Hosoyama A.,
RA Fukui S., Nagai Y., Nishijima K., Nakazawa H., Takamiya M., Masuda S.,
RA Funahashi T., Tanaka T., Kudoh Y., Yamazaki J., Kushida N., Oguchi A.,
RA Aoki K., Kubota K., Nakamura Y., Nomura N., Sako Y., Kikuchi H.;
RT "Complete genome sequence of an aerobic hyper-thermophilic crenarchaeon,
RT Aeropyrum pernix K1.";
RL DNA Res. 6:83-101(1999).
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) (By similarity). {ECO:0000250}.
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;
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420; Evidence={ECO:0000250};
CC Note=Binds 3 Mg(2+) cations per subunit. The strongest magnesium site
CC (Mg1) is bound to the beta- and gamma-phosphates of ATP and four water
CC molecules complete its coordination sphere. {ECO:0000250};
CC -!- SUBUNIT: Homodimer. {ECO:0000250}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000250}.
CC -!- SIMILARITY: Belongs to the class-II aminoacyl-tRNA synthetase family.
CC Type 2 subfamily. {ECO:0000305}.
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DR EMBL; BA000002; BAA81203.2; -; Genomic_DNA.
DR PIR; C72527; C72527.
DR AlphaFoldDB; Q9Y9U7; -.
DR SMR; Q9Y9U7; -.
DR STRING; 272557.APE_2192.1; -.
DR EnsemblBacteria; BAA81203; BAA81203; APE_2192.1.
DR KEGG; ape:APE_2192.1; -.
DR PATRIC; fig|272557.25.peg.1465; -.
DR eggNOG; arCOG00406; Archaea.
DR Proteomes; UP000002518; 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:0000287; F:magnesium ion 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 CDD; cd00776; AsxRS_core; 1.
DR Gene3D; 2.40.50.140; Nucleic acid-binding proteins; 1.
DR HAMAP; MF_02075; Asp_tRNA_synth_type2; 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; IPR004523; Asp-tRNA_synthase_2.
DR InterPro; IPR002312; Asp/Asn-tRNA-synth_IIb.
DR InterPro; IPR012340; NA-bd_OB-fold.
DR InterPro; IPR004365; NA-bd_OB_tRNA.
DR NCBIfam; TIGR00458; aspS_nondisc; 1.
DR PANTHER; PTHR43450:SF1; ASPARTATE--TRNA LIGASE, CYTOPLASMIC; 1.
DR PANTHER; PTHR43450; ASPARTYL-TRNA SYNTHETASE; 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; 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; Magnesium;
KW Metal-binding; Nucleotide-binding; Protein biosynthesis;
KW Reference proteome.
FT CHAIN 1..442
FT /note="Aspartate--tRNA(Asp/Asn) ligase"
FT /id="PRO_0000110989"
FT REGION 194..197
FT /note="Aspartate"
FT /evidence="ECO:0000250"
FT BINDING 172
FT /ligand="L-aspartate"
FT /ligand_id="ChEBI:CHEBI:29991"
FT /evidence="ECO:0000250"
FT BINDING 216..218
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000250"
FT BINDING 216
FT /ligand="L-aspartate"
FT /ligand_id="ChEBI:CHEBI:29991"
FT /evidence="ECO:0000250"
FT BINDING 224..226
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000250"
FT BINDING 365
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000250"
FT BINDING 365
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="2"
FT /evidence="ECO:0000250"
FT BINDING 365
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="3"
FT /evidence="ECO:0000250"
FT BINDING 368
FT /ligand="L-aspartate"
FT /ligand_id="ChEBI:CHEBI:29991"
FT /evidence="ECO:0000250"
FT BINDING 368
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /ligand_label="2"
FT /evidence="ECO:0000250"
FT BINDING 372
FT /ligand="L-aspartate"
FT /ligand_id="ChEBI:CHEBI:29991"
FT /evidence="ECO:0000250"
FT BINDING 413..416
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000250"
FT SITE 85
FT /note="Important for tRNA non-discrimination"
FT /evidence="ECO:0000250"
SQ SEQUENCE 442 AA; 50853 MW; 0AFAC6050871CB84 CRC64;
MLKDRFIADI IASKESLVGG RVRVCGWAYR IRDLGRLKFI LVRDRSGVIQ ATVKRGESPE
DALRAAEDLK LESVVCVEGE LRQAPTREGV EVKVERLEVL STPVEPLPLE VEGSEKASLP
TRLKYRWLDI RNPMVSAIFE LEAMVAKVFR DYYWSQGFVE IFTPKIVAAG TESGAEVFPV
VYFDKTAFLA QSPQFYKQFA VIAGLERVFE IGPVFRAEPH HTSRHLNEYH SLDIEVGFIE
SYNDVMNYVE GFMRAIVRML EEDGRRVLEL YGVELPRIPA SGIPKIPLRK AYEILEEKYG
KKVEYGEDLD SEGERLMGAY AGEELDSDFV FIVEYPWKVR PFYTMRKDDE PSWTYSFDLL
YRGLEIVTGG QREHRYHRLL ENLRDKGLDA ESFQFYLDFF KHGAPPHGGA GMGLERIVMQ
TLKLENIREA RMLPRDTERI TP
//
