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SYDND_HALSA
ID   SYDND_HALSA             Reviewed;         436 AA.
AC   O07683; Q9HS07;
DT   15-JUL-1998, integrated into UniProtKB/Swiss-Prot.
DT   01-JUL-1997, sequence version 1.
DT   03-AUG-2022, entry version 144.
DE   RecName: Full=Aspartate--tRNA(Asp/Asn) ligase {ECO:0000255|HAMAP-Rule:MF_02075};
DE            EC=6.1.1.23 {ECO:0000255|HAMAP-Rule:MF_02075};
DE   AltName: Full=Aspartyl-tRNA synthetase {ECO:0000255|HAMAP-Rule:MF_02075};
DE            Short=AspRS {ECO:0000255|HAMAP-Rule:MF_02075};
DE   AltName: Full=Non-discriminating aspartyl-tRNA synthetase {ECO:0000255|HAMAP-Rule:MF_02075};
DE            Short=ND-AspRS {ECO:0000255|HAMAP-Rule:MF_02075};
GN   Name=aspS {ECO:0000255|HAMAP-Rule:MF_02075}; OrderedLocusNames=VNG_0461G;
OS   Halobacterium salinarum (strain ATCC 700922 / JCM 11081 / NRC-1)
OS   (Halobacterium halobium).
OC   Archaea; Euryarchaeota; Stenosarchaea group; Halobacteria; Halobacteriales;
OC   Halobacteriaceae; Halobacterium.
OX   NCBI_TaxID=64091;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RA   Ihara H., Shinoda H., Ishigami M.;
RT   "Aspartyl-tRNA synthetase from Halobacterium salinarium.";
RL   Submitted (JUN-1997) to the EMBL/GenBank/DDBJ databases.
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 700922 / JCM 11081 / NRC-1;
RX   PubMed=11016950; DOI=10.1073/pnas.190337797;
RA   Ng W.V., Kennedy S.P., Mahairas G.G., Berquist B., Pan M., Shukla H.D.,
RA   Lasky S.R., Baliga N.S., Thorsson V., Sbrogna J., Swartzell S., Weir D.,
RA   Hall J., Dahl T.A., Welti R., Goo Y.A., Leithauser B., Keller K., Cruz R.,
RA   Danson M.J., Hough D.W., Maddocks D.G., Jablonski P.E., Krebs M.P.,
RA   Angevine C.M., Dale H., Isenbarger T.A., Peck R.F., Pohlschroder M.,
RA   Spudich J.L., Jung K.-H., Alam M., Freitas T., Hou S., Daniels C.J.,
RA   Dennis P.P., Omer A.D., Ebhardt H., Lowe T.M., Liang P., Riley M., Hood L.,
RA   DasSarma S.;
RT   "Genome sequence of Halobacterium species NRC-1.";
RL   Proc. Natl. Acad. Sci. U.S.A. 97:12176-12181(2000).
RN   [3]
RP   FUNCTION AS A NON-DISCRIMINATING ASPRS, CATALYTIC ACTIVITY, SUBSTRATE
RP   SPECIFICITY, MUTAGENESIS OF HIS-26 AND PRO-84, AND DISCRIMINATION SITES.
RX   PubMed=17114946; DOI=10.4161/rna.3.3.3116;
RA   Cardoso A.M., Polycarpo C., Martins O.B., Soll D.;
RT   "A non-discriminating aspartyl-tRNA synthetase from Halobacterium
RT   salinarum.";
RL   RNA Biol. 3:110-114(2006).
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). This indicates that it is not able to differentiate between
CC       base C36 in the tRNA(Asp) anticodon (GUC) from base U36 in the
CC       tRNA(Asn) (anticodon GUU). Reaction proceeds in two steps: L-aspartate
CC       is first activated by ATP to form Asp-AMP and then transferred to the
CC       acceptor end of tRNA(Asp/Asn). {ECO:0000269|PubMed:17114946}.
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_02075, ECO:0000269|PubMed:17114946};
CC   -!- COFACTOR:
CC       Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_02075};
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:0000255|HAMAP-
CC       Rule:MF_02075};
CC   -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_02075}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_02075}.
CC   -!- MISCELLANEOUS: The misacylated aspartate-tRNA(Asn) is not used in
CC       protein synthesis until it is converted by GatCAB into asparaginyl-
CC       tRNA(Asn).
CC   -!- SIMILARITY: Belongs to the class-II aminoacyl-tRNA synthetase family.
CC       Type 2 subfamily. {ECO:0000255|HAMAP-Rule:MF_02075}.
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DR   EMBL; D82887; BAA20527.1; -; Genomic_DNA.
DR   EMBL; AE004437; AAG19001.1; -; Genomic_DNA.
DR   PIR; E84204; E84204.
DR   PIR; T48900; T48900.
DR   RefSeq; WP_010902296.1; NC_002607.1.
DR   AlphaFoldDB; O07683; -.
DR   SMR; O07683; -.
DR   STRING; 64091.VNG_0461G; -.
DR   PaxDb; O07683; -.
DR   EnsemblBacteria; AAG19001; AAG19001; VNG_0461G.
DR   GeneID; 5953682; -.
DR   GeneID; 62886114; -.
DR   KEGG; hal:VNG_0461G; -.
DR   PATRIC; fig|64091.14.peg.346; -.
DR   HOGENOM; CLU_004553_2_1_2; -.
DR   InParanoid; O07683; -.
DR   OMA; WVHEIRD; -.
DR   OrthoDB; 24288at2157; -.
DR   PhylomeDB; O07683; -.
DR   BRENDA; 6.1.1.23; 2552.
DR   Proteomes; UP000000554; Chromosome.
DR   GO; GO:0017101; C:aminoacyl-tRNA synthetase multienzyme complex; IBA:GO_Central.
DR   GO; GO:0005829; C:cytosol; IBA:GO_Central.
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:0000287; F:magnesium ion binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0003723; F:RNA binding; IBA:GO_Central.
DR   GO; GO:0006422; P:aspartyl-tRNA aminoacylation; IBA:GO_Central.
DR   Gene3D; 2.40.50.140; -; 1.
DR   Gene3D; 3.30.930.10; -; 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   PANTHER; PTHR43450; PTHR43450; 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; SSF55681; SSF55681; 1.
DR   TIGRFAMs; TIGR00458; aspS_nondisc; 1.
DR   PROSITE; PS50862; AA_TRNA_LIGASE_II; 1.
PE   1: Evidence at protein level;
KW   Aminoacyl-tRNA synthetase; ATP-binding; Cytoplasm; Ligase; Magnesium;
KW   Metal-binding; Nucleotide-binding; Protein biosynthesis;
KW   Reference proteome.
FT   CHAIN           1..436
FT                   /note="Aspartate--tRNA(Asp/Asn) ligase"
FT                   /id="PRO_0000110992"
FT   REGION          191..194
FT                   /note="Aspartate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_02075"
FT   BINDING         169
FT                   /ligand="L-aspartate"
FT                   /ligand_id="ChEBI:CHEBI:29991"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_02075"
FT   BINDING         213..215
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_02075"
FT   BINDING         213
FT                   /ligand="L-aspartate"
FT                   /ligand_id="ChEBI:CHEBI:29991"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_02075"
FT   BINDING         221..223
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_02075"
FT   BINDING         359
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_02075"
FT   BINDING         359
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_02075"
FT   BINDING         359
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="3"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_02075"
FT   BINDING         362
FT                   /ligand="L-aspartate"
FT                   /ligand_id="ChEBI:CHEBI:29991"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_02075"
FT   BINDING         362
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_02075"
FT   BINDING         366
FT                   /ligand="L-aspartate"
FT                   /ligand_id="ChEBI:CHEBI:29991"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_02075"
FT   BINDING         407..410
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_02075"
FT   SITE            26
FT                   /note="Important for tRNA non-discrimination"
FT   SITE            84
FT                   /note="Important for tRNA non-discrimination"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_02075"
FT   MUTAGEN         26
FT                   /note="H->A,Q: Enhances enzyme specificity for tRNA(Asp)
FT                   over tRNA(Asn), by decreasing the ability to form Asp-
FT                   tRNA(Asn)."
FT                   /evidence="ECO:0000269|PubMed:17114946"
FT   MUTAGEN         84
FT                   /note="P->A,K: Enhances enzyme specificity for tRNA(Asp)
FT                   over tRNA(Asn), by decreasing the ability to form Asp-
FT                   tRNA(Asn)."
FT                   /evidence="ECO:0000269|PubMed:17114946"
SQ   SEQUENCE   436 AA;  49038 MW;  47A417B8CD6B1C09 CRC64;
     MLERTYIEDV TPDDDGEDTT IAGHVHELRD LGGILFVIVR DATGRLQVVA KEDDTPDLFE
     TAEGLSSEDV VQVTGTLEAS DQAPGGVELA PTELTVVSEA TDVPSIEISK DVDADLSTRL
     DERHLDVRKP STKAVFSLRS KAMGAMTDWF YDNRFEEVDT PELSTAGAEG GADLFPVVYY
     DKEAYLSQSP QLYKQILVAS GVDRLFEVGH AFRAEDFGTS RHVSEIAMFD VELGYVEDHH
     DVMDVQEESL RHTIRHVVEH AQRELDELGS DLSVPEADFP RITFEEAREI LADEYDHVPE
     DDNDLDTKGE RLLGEYFEEQ GHPAVFVVGY PDEKFYYRQD VDGDDVASRK FDLLYRGQEL
     SSGGQREHDI ERLTAKMREQ GVEPENFEFY LDAFRYGVPP HGGYGLGIDR LIQQLAGLDN
     IKEAILFPRD PDRLEP
 
 
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