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Protein

Isoleucine--tRNA ligase

Gene

ileS

Organism
Desulfovibrio vulgaris subsp. vulgaris (strain DP4)
Status
Reviewed-Annotation score: Annotation score: 3 out of 5-Protein inferred from homologyi

Functioni

Catalyzes the attachment of isoleucine to tRNA(Ile). As IleRS can inadvertently accommodate and process structurally similar amino acids such as valine, to avoid such errors it has two additional distinct tRNA(Ile)-dependent editing activities. One activity is designated as 'pretransfer' editing and involves the hydrolysis of activated Val-AMP. The other activity is designated 'posttransfer' editing and involves deacylation of mischarged Val-tRNA(Ile).UniRule annotation

Catalytic activityi

ATP + L-isoleucine + tRNA(Ile) = AMP + diphosphate + L-isoleucyl-tRNA(Ile).UniRule annotation

Cofactori

Zn2+UniRule annotationNote: Binds 1 zinc ion per subunit.UniRule annotation

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Binding sitei566 – 5661Aminoacyl-adenylateUniRule annotation
Binding sitei610 – 6101ATPUniRule annotation
Metal bindingi906 – 9061ZincUniRule annotation
Metal bindingi909 – 9091ZincUniRule annotation
Metal bindingi926 – 9261ZincUniRule annotation
Metal bindingi929 – 9291ZincUniRule annotation

GO - Molecular functioni

GO - Biological processi

Complete GO annotation...

Keywords - Molecular functioni

Aminoacyl-tRNA synthetase, Ligase

Keywords - Biological processi

Protein biosynthesis

Keywords - Ligandi

ATP-binding, Metal-binding, Nucleotide-binding, Zinc

Enzyme and pathway databases

BioCyciDVUL391774:GHS0-1283-MONOMER.

Names & Taxonomyi

Protein namesi
Recommended name:
Isoleucine--tRNA ligaseUniRule annotation (EC:6.1.1.5UniRule annotation)
Alternative name(s):
Isoleucyl-tRNA synthetaseUniRule annotation
Short name:
IleRSUniRule annotation
Gene namesi
Name:ileSUniRule annotation
Ordered Locus Names:Dvul_1240
OrganismiDesulfovibrio vulgaris subsp. vulgaris (strain DP4)
Taxonomic identifieri391774 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaDeltaproteobacteriaDesulfovibrionalesDesulfovibrionaceaeDesulfovibrio
ProteomesiUP000009173 Componenti: Chromosome

Subcellular locationi

  • Cytoplasm UniRule annotation

GO - Cellular componenti

Complete GO annotation...

Keywords - Cellular componenti

Cytoplasm

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 938938Isoleucine--tRNA ligasePRO_1000070886Add
BLAST

Interactioni

Subunit structurei

Monomer.UniRule annotation

Structurei

3D structure databases

ProteinModelPortaliA1VCU3.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Motif

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Motifi58 – 6811"HIGH" regionAdd
BLAST
Motifi607 – 6115"KMSKS" region

Domaini

IleRS has two distinct active sites: one for aminoacylation and one for editing. The misactivated valine is translocated from the active site to the editing site, which sterically excludes the correctly activated isoleucine. The single editing site contains two valyl binding pockets, one specific for each substrate (Val-AMP or Val-tRNA(Ile)).UniRule annotation

Sequence similaritiesi

Belongs to the class-I aminoacyl-tRNA synthetase family. IleS type 1 subfamily.UniRule annotation

Phylogenomic databases

eggNOGiCOG0060.
HOGENOMiHOG000246402.
KOiK01870.
OMAiVLGDWDN.
OrthoDBiEOG644ZM1.

Family and domain databases

Gene3Di1.10.730.10. 1 hit.
3.40.50.620. 2 hits.
3.90.740.10. 1 hit.
HAMAPiMF_02002. Ile_tRNA_synth_type1.
InterProiIPR001412. aa-tRNA-synth_I_CS.
IPR002300. aa-tRNA-synth_Ia.
IPR002301. Ile-tRNA-ligase.
IPR023585. Ile-tRNA-ligase_type1.
IPR013155. M/V/L/I-tRNA-synth_anticd-bd.
IPR014729. Rossmann-like_a/b/a_fold.
IPR009080. tRNAsynth_1a_anticodon-bd.
IPR009008. Val/Leu/Ile-tRNA-synth_edit.
IPR010663. Znf_DNA_glyclase/IsotRNA_synth.
[Graphical view]
PANTHERiPTHR11946:SF9. PTHR11946:SF9. 1 hit.
PfamiPF08264. Anticodon_1. 1 hit.
PF00133. tRNA-synt_1. 1 hit.
PF06827. zf-FPG_IleRS. 1 hit.
[Graphical view]
PRINTSiPR00984. TRNASYNTHILE.
SUPFAMiSSF47323. SSF47323. 1 hit.
SSF50677. SSF50677. 1 hit.
TIGRFAMsiTIGR00392. ileS. 1 hit.
PROSITEiPS00178. AA_TRNA_LIGASE_I. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

A1VCU3-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MSDYKKTLQL PETKFPMKAN LTQREPEMLR KWEKDDAYGA MVRASGQQGT
60 70 80 90 100
YVLHDGPPYA NGNIHMGHAL NKILKDIIVK SRNLQGFKAE YVPGWDCHGL
110 120 130 140 150
PIELKVEHEL GEKKRTMPAH AVRKRCRQYA EKYLDIQRKE FKRLGVFGAW
160 170 180 190 200
DKPYVTMHPS YEAATARELG NFAAKGGLVR SKKPIYWCCS CQTALAEAEV
210 220 230 240 250
EYHDHTSPSV HVRFPLRDPR VAEVLPGVDP AHAYIVIWTT TPWTLPDNMA
260 270 280 290 300
VAVHPDFDYV VVRHGGDFHI VAEGLLEACL KAFKWDEHEV VARIGGRALE
310 320 330 340 350
GLKATHPFYD RPSPIVLADY VTLESGTGCV HTAPGHGRED YETGLRYGLD
360 370 380 390 400
IYSPLTDEGR YLDCVEFFAG MTIFEANPKV IEKLREVGNL LAEGRITHSY
410 420 430 440 450
PHCWRCKKPV IFRATTQWFI AMERNDLRQK ALDAIRDDVR WIPSWGQERI
460 470 480 490 500
HNMIEFRPDW CISRQRMWGV PIVALLCEDC GEAWNDADWM RDIAERFAKH
510 520 530 540 550
ATGCDYWYET DLSDIVPAGL RCPKCGGDHW KKETDILDVW FDSGTSFAAV
560 570 580 590 600
VEQREECGFP ADLYLEGSDQ HRGWFHSSLL ASIGTRGVPP YRSVLTHGYV
610 620 630 640 650
VDGDGRKMSK SVGNVVAPQE IIDKHGAEVL RLWVASVDYR EDIRISEEIL
660 670 680 690 700
NRLVDAYRRI RNTCRYLLGN ISDLTPETMV PFEAMDPLDR FALDLASRAH
710 720 730 740 750
ERIQDAYTEY EFHKVFHTLH NLCVTDLSAF YLDILKDRLY SSAADSHARR
760 770 780 790 800
SAQTALYRIL MLMVRDMAPV LSFTAEEVFG YVPAALRPDV ISVFALPATD
810 820 830 840 850
APAFTLDTTS RAAWEKLLAV RSETTKAIEP LRKSGEVGHS LDTHVTLFAD
860 870 880 890 900
PSLKATLEGL GSDLRAMFIV SRLEVMNLAD APADAWTSEE LPELRVAVRK
910 920 930
AEGEKCERCW IISADLGTDA AHPTLCPRCT AVLTGTGA
Length:938
Mass (Da):105,975
Last modified:February 6, 2007 - v1
Checksum:i4B531856C7308EFE
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP000527 Genomic DNA. Translation: ABM28259.1.
RefSeqiWP_011792149.1. NC_008751.1.

Genome annotation databases

EnsemblBacteriaiABM28259; ABM28259; Dvul_1240.
KEGGidvl:Dvul_1240.
PATRICi21766305. VBIDesVul62463_1438.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP000527 Genomic DNA. Translation: ABM28259.1.
RefSeqiWP_011792149.1. NC_008751.1.

3D structure databases

ProteinModelPortaliA1VCU3.
ModBaseiSearch...
MobiDBiSearch...

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiABM28259; ABM28259; Dvul_1240.
KEGGidvl:Dvul_1240.
PATRICi21766305. VBIDesVul62463_1438.

Phylogenomic databases

eggNOGiCOG0060.
HOGENOMiHOG000246402.
KOiK01870.
OMAiVLGDWDN.
OrthoDBiEOG644ZM1.

Enzyme and pathway databases

BioCyciDVUL391774:GHS0-1283-MONOMER.

Family and domain databases

Gene3Di1.10.730.10. 1 hit.
3.40.50.620. 2 hits.
3.90.740.10. 1 hit.
HAMAPiMF_02002. Ile_tRNA_synth_type1.
InterProiIPR001412. aa-tRNA-synth_I_CS.
IPR002300. aa-tRNA-synth_Ia.
IPR002301. Ile-tRNA-ligase.
IPR023585. Ile-tRNA-ligase_type1.
IPR013155. M/V/L/I-tRNA-synth_anticd-bd.
IPR014729. Rossmann-like_a/b/a_fold.
IPR009080. tRNAsynth_1a_anticodon-bd.
IPR009008. Val/Leu/Ile-tRNA-synth_edit.
IPR010663. Znf_DNA_glyclase/IsotRNA_synth.
[Graphical view]
PANTHERiPTHR11946:SF9. PTHR11946:SF9. 1 hit.
PfamiPF08264. Anticodon_1. 1 hit.
PF00133. tRNA-synt_1. 1 hit.
PF06827. zf-FPG_IleRS. 1 hit.
[Graphical view]
PRINTSiPR00984. TRNASYNTHILE.
SUPFAMiSSF47323. SSF47323. 1 hit.
SSF50677. SSF50677. 1 hit.
TIGRFAMsiTIGR00392. ileS. 1 hit.
PROSITEiPS00178. AA_TRNA_LIGASE_I. 1 hit.
[Graphical view]
ProtoNetiSearch...

Publicationsi

  1. Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: DP4.

Entry informationi

Entry nameiSYI_DESVV
AccessioniPrimary (citable) accession number: A1VCU3
Entry historyi
Integrated into UniProtKB/Swiss-Prot: February 5, 2008
Last sequence update: February 6, 2007
Last modified: July 22, 2015
This is version 71 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome

Documents

  1. Aminoacyl-tRNA synthetases
    List of aminoacyl-tRNA synthetase entries
  2. SIMILARITY comments
    Index of protein domains and families

External Data

Dasty 3

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into Uniref entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.