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Protein

Isoleucine--tRNA ligase

Gene

ileS

Organism
Desulfovibrio vulgaris (strain RCH1)
Status
Unreviewed-Annotation score: -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 annotationSAAS annotation

Catalytic activityi

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

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Binding sitei566Aminoacyl-adenylateUniRule annotation1
Binding sitei610ATPUniRule annotation1
Metal bindingi906ZincUniRule annotation1
Metal bindingi909ZincUniRule annotation1
Metal bindingi926ZincUniRule annotation1
Metal bindingi929ZincUniRule annotation1

GO - Molecular functioni

GO - Biological processi

Keywordsi

Molecular functionAminoacyl-tRNA synthetaseUniRule annotationSAAS annotationImported, Ligase
Biological processProtein biosynthesisUniRule annotationSAAS annotation
LigandATP-bindingUniRule annotationSAAS annotation, Metal-bindingUniRule annotationSAAS annotation, Nucleotide-binding, ZincUniRule annotationSAAS annotation

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:Deval_1383Imported
OrganismiDesulfovibrio vulgaris (strain RCH1)Imported
Taxonomic identifieri573059 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaDeltaproteobacteriaDesulfovibrionalesDesulfovibrionaceaeDesulfovibrio
Proteomesi
  • UP000001496 Componenti: Chromosome

Subcellular locationi

  • Cytoplasm UniRule annotationSAAS annotation

GO - Cellular componenti

Keywords - Cellular componenti

CytoplasmUniRule annotationSAAS annotation

Interactioni

Subunit structurei

Monomer.UniRule annotationSAAS annotation

Structurei

3D structure databases

ProteinModelPortaliA0A0E0T273.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Domains and Repeats

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Domaini28 – 646tRNA-synt_1InterPro annotationAdd BLAST619
Domaini689 – 846Anticodon_1InterPro annotationAdd BLAST158
Domaini903 – 930zf-FPG_IleRSInterPro annotationAdd BLAST28

Motif

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Motifi58 – 68"HIGH" regionUniRule annotationAdd BLAST11
Motifi607 – 611"KMSKS" regionUniRule annotation5

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 annotationSAAS annotation

Phylogenomic databases

KOiK01870.
OMAiPSWYIRT.
OrthoDBiPOG091H028I.

Family and domain databases

CDDicd07960. Anticodon_Ia_Ile_BEm. 1 hit.
Gene3Di3.40.50.620. 2 hits.
3.90.740.10. 1 hit.
HAMAPiMF_02002. Ile_tRNA_synth_type1. 1 hit.
InterProiView protein in InterPro
IPR001412. aa-tRNA-synth_I_CS.
IPR002300. aa-tRNA-synth_Ia.
IPR033708. Anticodon_Ile_BEm.
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_Ia_anticodon-bd.
IPR009008. Val/Leu/Ile-tRNA-synth_edit.
IPR010663. Znf_FPG/IleRS.
PfamiView protein in Pfam
PF08264. Anticodon_1. 1 hit.
PF00133. tRNA-synt_1. 1 hit.
PF06827. zf-FPG_IleRS. 1 hit.
PRINTSiPR00984. TRNASYNTHILE.
SUPFAMiSSF47323. SSF47323. 1 hit.
SSF50677. SSF50677. 1 hit.
TIGRFAMsiTIGR00392. ileS. 1 hit.
PROSITEiView protein in PROSITE
PS00178. AA_TRNA_LIGASE_I. 1 hit.

Sequencei

Sequence statusi: Complete.

A0A0E0T273-1 [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 SRLEVMDLAD APADAWTSEE LPELKVTVRK
910 920 930
AEGEKCERCW IISADLGTDA AHPTLCPRCT AVLTGTGA
Length:938
Mass (Da):105,978
Last modified:May 27, 2015 - v1
Checksum:i45ACF848190669FE
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP002297 Genomic DNA. Translation: ADP86539.1.
RefSeqiWP_010939213.1. NC_017310.1.

Genome annotation databases

EnsemblBacteriaiADP86539; ADP86539; Deval_1383.
KEGGidvg:Deval_1383.
PATRICifig|573059.4.peg.1478.

Similar proteinsi

Entry informationi

Entry nameiA0A0E0T273_DESVR
AccessioniPrimary (citable) accession number: A0A0E0T273
Entry historyiIntegrated into UniProtKB/TrEMBL: May 27, 2015
Last sequence update: May 27, 2015
Last modified: March 28, 2018
This is version 25 of the entry and version 1 of the sequence. See complete history.
Entry statusiUnreviewed (UniProtKB/TrEMBL)

Miscellaneousi

Keywords - Technical termi

Complete proteomeImported