ID A0A7C9QUE0_9PROT Unreviewed; 889 AA.
AC A0A7C9QUE0;
DT 10-FEB-2021, integrated into UniProtKB/TrEMBL.
DT 10-FEB-2021, sequence version 1.
DT 28-JAN-2026, entry version 19.
DE RecName: Full=Valine--tRNA ligase {ECO:0000256|HAMAP-Rule:MF_02004};
DE EC=6.1.1.9 {ECO:0000256|HAMAP-Rule:MF_02004};
DE AltName: Full=Valyl-tRNA synthetase {ECO:0000256|HAMAP-Rule:MF_02004};
DE Short=ValRS {ECO:0000256|HAMAP-Rule:MF_02004};
GN Name=valS {ECO:0000256|HAMAP-Rule:MF_02004};
GN ORFNames=G4223_09785 {ECO:0000313|EMBL:NFV80401.1};
OS Magnetospirillum aberrantis SpK.
OC Bacteria; Pseudomonadati; Pseudomonadota; Alphaproteobacteria;
OC Rhodospirillales; Rhodospirillaceae; Magnetospirillum.
OX NCBI_TaxID=908842 {ECO:0000313|EMBL:NFV80401.1, ECO:0000313|Proteomes:UP000480684};
RN [1] {ECO:0000313|EMBL:NFV80401.1, ECO:0000313|Proteomes:UP000480684}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=SpK {ECO:0000313|EMBL:NFV80401.1,
RC ECO:0000313|Proteomes:UP000480684};
RA Dziuba M., Kuznetsov B., Mardanov A., Ravin N., Grouzdev D.;
RL Submitted (FEB-2020) to the EMBL/GenBank/DDBJ databases.
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:0000256|HAMAP-Rule:MF_02004}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=tRNA(Val) + L-valine + ATP = L-valyl-tRNA(Val) + AMP +
CC diphosphate; 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:0000256|ARBA:ARBA00047552, ECO:0000256|HAMAP-
CC Rule:MF_02004};
CC -!- SUBUNIT: Monomer. {ECO:0000256|ARBA:ARBA00011245, ECO:0000256|HAMAP-
CC Rule:MF_02004}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000256|ARBA:ARBA00004496,
CC ECO:0000256|HAMAP-Rule:MF_02004}.
CC -!- DOMAIN: The C-terminal coiled-coil domain is crucial for aminoacylation
CC activity. {ECO:0000256|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:0000256|HAMAP-Rule:MF_02004}.
CC -!- SIMILARITY: Belongs to the class-I aminoacyl-tRNA synthetase family.
CC ValS type 1 subfamily. {ECO:0000256|ARBA:ARBA00060830,
CC ECO:0000256|HAMAP-Rule:MF_02004}.
CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC whole genome shotgun (WGS) entry which is preliminary data.
CC {ECO:0000313|EMBL:NFV80401.1}.
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DR EMBL; JAAIYP010000036; NFV80401.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A7C9QUE0; -.
DR Proteomes; UP000480684; Unassembled WGS sequence.
DR GO; GO:0005829; C:cytosol; IEA:TreeGrafter.
DR GO; GO:0002161; F:aminoacyl-tRNA deacylase 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 FunFam; 1.10.287.380:FF:000001; Valine--tRNA ligase; 1.
DR FunFam; 3.40.50.620:FF:000032; Valine--tRNA ligase; 1.
DR FunFam; 3.40.50.620:FF:000078; Valine--tRNA ligase, mitochondrial; 1.
DR FunFam; 3.90.740.10:FF:000005; Valine--tRNA ligase, mitochondrial; 1.
DR Gene3D; 3.40.50.620; HUPs; 2.
DR Gene3D; 1.10.730.10; Isoleucyl-tRNA Synthetase, Domain 1; 1.
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; 1.
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; NF004349; PRK05729.1; 1.
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 {ECO:0000256|ARBA:ARBA00023146,
KW ECO:0000256|HAMAP-Rule:MF_02004};
KW ATP-binding {ECO:0000256|ARBA:ARBA00022840, ECO:0000256|HAMAP-
KW Rule:MF_02004};
KW Coiled coil {ECO:0000256|ARBA:ARBA00023054, ECO:0000256|HAMAP-
KW Rule:MF_02004};
KW Cytoplasm {ECO:0000256|ARBA:ARBA00022490, ECO:0000256|HAMAP-Rule:MF_02004};
KW Ligase {ECO:0000256|ARBA:ARBA00022598, ECO:0000256|HAMAP-Rule:MF_02004};
KW Nucleotide-binding {ECO:0000256|ARBA:ARBA00022741, ECO:0000256|HAMAP-
KW Rule:MF_02004};
KW Protein biosynthesis {ECO:0000256|ARBA:ARBA00022917, ECO:0000256|HAMAP-
KW Rule:MF_02004}; Reference proteome {ECO:0000313|Proteomes:UP000480684}.
FT DOMAIN 17..569
FT /note="Aminoacyl-tRNA synthetase class Ia"
FT /evidence="ECO:0000259|Pfam:PF00133"
FT DOMAIN 612..756
FT /note="Methionyl/Valyl/Leucyl/Isoleucyl-tRNA synthetase
FT anticodon-binding"
FT /evidence="ECO:0000259|Pfam:PF08264"
FT DOMAIN 822..886
FT /note="Valyl-tRNA synthetase tRNA-binding arm"
FT /evidence="ECO:0000259|Pfam:PF10458"
FT COILED 820..889
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02004"
FT MOTIF 45..55
FT /note="'HIGH' region"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02004"
FT MOTIF 530..534
FT /note="'KMSKS' region"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02004"
FT BINDING 533
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02004"
SQ SEQUENCE 889 AA; 100404 MW; 3786754783638B90 CRC64;
MVMLDKTYRP SEVEPKHYER WEQSGAFAAH TDSDKVPYTI MMPPPNVTGS LHMGHALTFT
LQDVLIRYHR MIGRDALWQP GTDHAGIATQ MVVERQLEAQ KITRHDLGRD KFIERVWEWK
AESGGTITRQ LRRLGASPDW AKERFTMDEG LSAAVREVFV TLYKQGLLYR DKRLVNWDPK
LHTAISDLEV EQREVKGHMW HFKYPVEGMA DTFITVATTR PETMLGDSAV AVHPEDERYT
HLVGKMVRLP IVGRLIPIVA DEYSDPTKGT GAVKITPAHD FNDFEVGKRH NLPQINVLDR
DAKITGDVPA EYLGLDRYEA RKKIVAVIEE LGLLDKIENH VHMVPYGDRS GVVIEPWLTD
QWYVDAPTLA KPALEAVETG KTKFTPKHWE NTYYEWMRNI QPWCVSRQIW WGHQVPAWYG
PDGAVFVEKT EAEAAAAAAA HYGKTVELTR DTDVLDTWFS SALWPFSTLG WPEQTPELAR
YYTTDVLVTG FDIIFFWVAR MMMMGIHFMG EVPFKDIYIH ALVRDEKGQK MSKSKGNVID
PLVLMDKYGT DAVRFTLAAL AAQGRDIKLA EGRVEGYRNF ATKLWNAARF CQMNECAPVA
GFDPKAVKET VNRWIVGKTA ETADKVAAAL DGYRFDAAAG ATYQFVWGTF CDWYLEFAKP
IFSGSDEAAK AETRATAAWV LDMILHVLHP FMPFITEELW AQMGGRSDQL MLRDWPKFDG
LHDSTAEEEM DWVVRVISTV RGVRSEMNVP AGAQVDLLVS GLDGGRAGWA KTHADLIVRL
ARLAAFEPHA GADRVAQAFS HGAAQMVVDE ATLVMPLAGV IDIDKERVRL EKEIARVENE
IAKVDKKFAN PDFVAKAAPE VVEENRERRA EWSAAKEKLQ EALQRLSGA
//
