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Database: UniProt
Entry: Q8XCB3
LinkDB: Q8XCB3
Original site: Q8XCB3 
ID   SYV_ECO57               Reviewed;         951 AA.
AC   Q8XCB3; Q7A8R1;
DT   07-MAR-2006, integrated into UniProtKB/Swiss-Prot.
DT   01-MAR-2002, sequence version 1.
DT   27-MAR-2024, entry version 136.
DE   RecName: Full=Valine--tRNA ligase {ECO:0000255|HAMAP-Rule:MF_02004};
DE            EC=6.1.1.9 {ECO:0000255|HAMAP-Rule:MF_02004};
DE   AltName: Full=Valyl-tRNA synthetase {ECO:0000255|HAMAP-Rule:MF_02004};
DE            Short=ValRS {ECO:0000255|HAMAP-Rule:MF_02004};
GN   Name=valS {ECO:0000255|HAMAP-Rule:MF_02004};
GN   OrderedLocusNames=Z5870, ECs5235;
OS   Escherichia coli O157:H7.
OC   Bacteria; Pseudomonadota; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Escherichia.
OX   NCBI_TaxID=83334;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=O157:H7 / EDL933 / ATCC 700927 / EHEC;
RX   PubMed=11206551; DOI=10.1038/35054089;
RA   Perna N.T., Plunkett G. III, Burland V., Mau B., Glasner J.D., Rose D.J.,
RA   Mayhew G.F., Evans P.S., Gregor J., Kirkpatrick H.A., Posfai G.,
RA   Hackett J., Klink S., Boutin A., Shao Y., Miller L., Grotbeck E.J.,
RA   Davis N.W., Lim A., Dimalanta E.T., Potamousis K., Apodaca J.,
RA   Anantharaman T.S., Lin J., Yen G., Schwartz D.C., Welch R.A.,
RA   Blattner F.R.;
RT   "Genome sequence of enterohaemorrhagic Escherichia coli O157:H7.";
RL   Nature 409:529-533(2001).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=O157:H7 / Sakai / RIMD 0509952 / EHEC;
RX   PubMed=11258796; DOI=10.1093/dnares/8.1.11;
RA   Hayashi T., Makino K., Ohnishi M., Kurokawa K., Ishii K., Yokoyama K.,
RA   Han C.-G., Ohtsubo E., Nakayama K., Murata T., Tanaka M., Tobe T., Iida T.,
RA   Takami H., Honda T., Sasakawa C., Ogasawara N., Yasunaga T., Kuhara S.,
RA   Shiba T., Hattori M., Shinagawa H.;
RT   "Complete genome sequence of enterohemorrhagic Escherichia coli O157:H7 and
RT   genomic comparison with a laboratory strain K-12.";
RL   DNA Res. 8:11-22(2001).
CC   -!- FUNCTION: Catalyzes the attachment of valine to tRNA(Val). As ValRS can
CC       inadvertently accommodate and process structurally similar amino acids
CC       such as threonine, to avoid such errors, it has a 'posttransfer'
CC       editing activity that hydrolyzes mischarged Thr-tRNA(Val) in a tRNA-
CC       dependent manner. {ECO:0000255|HAMAP-Rule:MF_02004}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=ATP + L-valine + tRNA(Val) = AMP + diphosphate + L-valyl-
CC         tRNA(Val); Xref=Rhea:RHEA:10704, Rhea:RHEA-COMP:9672, Rhea:RHEA-
CC         COMP:9708, ChEBI:CHEBI:30616, ChEBI:CHEBI:33019, ChEBI:CHEBI:57762,
CC         ChEBI:CHEBI:78442, ChEBI:CHEBI:78537, ChEBI:CHEBI:456215; EC=6.1.1.9;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_02004};
CC   -!- SUBUNIT: Monomer. {ECO:0000255|HAMAP-Rule:MF_02004}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_02004}.
CC   -!- DOMAIN: ValRS has two distinct active sites: one for aminoacylation and
CC       one for editing. The misactivated threonine is translocated from the
CC       active site to the editing site. {ECO:0000255|HAMAP-Rule:MF_02004}.
CC   -!- DOMAIN: The C-terminal coiled-coil domain is crucial for aminoacylation
CC       activity. {ECO:0000255|HAMAP-Rule:MF_02004}.
CC   -!- SIMILARITY: Belongs to the class-I aminoacyl-tRNA synthetase family.
CC       ValS type 1 subfamily. {ECO:0000255|HAMAP-Rule:MF_02004}.
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DR   EMBL; AE005174; AAG59457.1; -; Genomic_DNA.
DR   EMBL; BA000007; BAB38658.1; -; Genomic_DNA.
DR   PIR; C91283; C91283.
DR   PIR; E86124; E86124.
DR   RefSeq; NP_313262.1; NC_002695.1.
DR   RefSeq; WP_000416407.1; NZ_SWKA01000005.1.
DR   AlphaFoldDB; Q8XCB3; -.
DR   SMR; Q8XCB3; -.
DR   STRING; 155864.Z5870; -.
DR   GeneID; 913806; -.
DR   KEGG; ece:Z5870; -.
DR   KEGG; ecs:ECs_5235; -.
DR   PATRIC; fig|386585.9.peg.5472; -.
DR   eggNOG; COG0525; Bacteria.
DR   HOGENOM; CLU_001493_0_2_6; -.
DR   OMA; LDTWMDS; -.
DR   Proteomes; UP000000558; Chromosome.
DR   Proteomes; UP000002519; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0002161; F:aminoacyl-tRNA editing activity; IEA:InterPro.
DR   GO; GO:0005524; F:ATP binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0004832; F:valine-tRNA ligase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0006438; P:valyl-tRNA aminoacylation; IEA:UniProtKB-UniRule.
DR   CDD; cd07962; Anticodon_Ia_Val; 1.
DR   CDD; cd00817; ValRS_core; 1.
DR   Gene3D; 3.40.50.620; HUPs; 2.
DR   Gene3D; 1.10.287.380; Valyl-tRNA synthetase, C-terminal domain; 1.
DR   Gene3D; 3.90.740.10; Valyl/Leucyl/Isoleucyl-tRNA synthetase, editing domain; 2.
DR   HAMAP; MF_02004; Val_tRNA_synth_type1; 1.
DR   InterPro; IPR001412; aa-tRNA-synth_I_CS.
DR   InterPro; IPR002300; aa-tRNA-synth_Ia.
DR   InterPro; IPR033705; Anticodon_Ia_Val.
DR   InterPro; IPR013155; M/V/L/I-tRNA-synth_anticd-bd.
DR   InterPro; IPR014729; Rossmann-like_a/b/a_fold.
DR   InterPro; IPR010978; tRNA-bd_arm.
DR   InterPro; IPR009080; tRNAsynth_Ia_anticodon-bd.
DR   InterPro; IPR037118; Val-tRNA_synth_C_sf.
DR   InterPro; IPR019499; Val-tRNA_synth_tRNA-bd.
DR   InterPro; IPR009008; Val/Leu/Ile-tRNA-synth_edit.
DR   InterPro; IPR002303; Valyl-tRNA_ligase.
DR   NCBIfam; TIGR00422; valS; 1.
DR   PANTHER; PTHR11946:SF93; VALINE--TRNA LIGASE, CHLOROPLASTIC_MITOCHONDRIAL 2; 1.
DR   PANTHER; PTHR11946; VALYL-TRNA SYNTHETASES; 1.
DR   Pfam; PF08264; Anticodon_1; 1.
DR   Pfam; PF00133; tRNA-synt_1; 1.
DR   Pfam; PF10458; Val_tRNA-synt_C; 1.
DR   PRINTS; PR00986; TRNASYNTHVAL.
DR   SUPFAM; SSF47323; Anticodon-binding domain of a subclass of class I aminoacyl-tRNA synthetases; 1.
DR   SUPFAM; SSF52374; Nucleotidylyl transferase; 1.
DR   SUPFAM; SSF46589; tRNA-binding arm; 1.
DR   SUPFAM; SSF50677; ValRS/IleRS/LeuRS editing domain; 1.
DR   PROSITE; PS00178; AA_TRNA_LIGASE_I; 1.
PE   3: Inferred from homology;
KW   Aminoacyl-tRNA synthetase; ATP-binding; Coiled coil; Cytoplasm; Ligase;
KW   Nucleotide-binding; Protein biosynthesis; Reference proteome.
FT   CHAIN           1..951
FT                   /note="Valine--tRNA ligase"
FT                   /id="PRO_0000224477"
FT   COILED          880..944
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_02004"
FT   MOTIF           42..52
FT                   /note="'HIGH' region"
FT   MOTIF           554..558
FT                   /note="'KMSKS' region"
FT   BINDING         557
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_02004"
SQ   SEQUENCE   951 AA;  108178 MW;  B276D5428FCDB9EC CRC64;
     MEKTYNPQDI EQPLYEHWEK QGYFKPNGDE SQESFCIMIP PPNVTGSLHM GHAFQQTIMD
     TMIRYQRMQG KNTLWQVGTD HAGIATQMVV ERKIAAEEGK TRHDYGREAF IDKIWEWKAE
     SGGTITRQMR RLGNSVDWER ERFTMDEGLS NAVKEVFVRL YKEDLIYRGK RLVNWDPKLR
     TAISDLEVEN RESKGSMWHI RYPLADGAKT ADGKDYLVVA TTRPETLLGD TGVAVNPEDP
     RYKDLIGKYV ILPLVNRRIP IVGDEHADME KGTGCVKITP AHDFNDYEVG KRHALPMINI
     LTFDGDIRES AQVFDTKGNE SDVYSSEIPA EFQKLERFAA RKAVVAAVDA LGLLEEIKPH
     DLTVPYGDRG GVVIEPMLTD QWYVRADVLA KPAVEAVENG DIQFVPKQYE NMYFSWMRDI
     QDWCISRQLW WGHRIPAWYD EAGNVYVGRN EEEVRKENNL GADVALRQDE DVLDTWFSSA
     LWTFSTLGWP ENTDALRQFH PTSVMVSGFD IIFFWIARMI MMTMHFIKDE NGKPQVPFHT
     VYMTGLIRDD EGQKMSKSKG NVIDPLDMVD GISLPELLEK RTGNMMQPQL ADKIRKRTEK
     QFPNGIEPHG TDALRFTLAA LASTGRDINW DMKRLEGYRN FCNKLWNASR FVLMNTEGQD
     CGFNGGEMTL SLADRWILAE FNQTIKAYRE ALDSFRFDIA AGILYEFTWN QFCDWYLELT
     KPVMNGGTEA ELRGTRHTLV TVLEGLLRLA HPIIPFITET IWQRVKVLCG ITADTIMLQP
     FPQYDASQVD EAALADTEWL KQAIVAVRNI RAEMNIAPGK PLELLLRGCS ADAERRVNEN
     RGFLQTLARL ESITVLPADD KGPVSVTKII DGAELLIPMA GLINKEDELA RLAKEVAKIE
     GEISRIENKL ANEGFVARAP EAVIAKEREK LEGYAEAKAK LIEQQAVIAA L
//
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