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Q0AYC7 (SYI_SYNWW) Reviewed, UniProtKB/Swiss-Prot

Last modified May 14, 2014. Version 64. Feed History...

Clusters with 100%, 90%, 50% identity | Documents (2) | Third-party data text xml rdf/xml gff fasta
to top of pageNames·Attributes·General annotation·Ontologies·Sequence annotation·Sequences·References·Cross-refs·Entry info·DocumentsCustomize order

Names and origin

Protein namesRecommended name:
Isoleucine--tRNA ligase

EC=6.1.1.5
Alternative name(s):
Isoleucyl-tRNA synthetase
Short name=IleRS
Gene names
Name:ileS
Ordered Locus Names:Swol_0962
OrganismSyntrophomonas wolfei subsp. wolfei (strain DSM 2245B / Goettingen) [Complete proteome] [HAMAP]
Taxonomic identifier335541 [NCBI]
Taxonomic lineageBacteriaFirmicutesClostridiaClostridialesSyntrophomonadaceaeSyntrophomonas

Protein attributes

Sequence length927 AA.
Sequence statusComplete.
Protein existenceInferred from homology

General annotation (Comments)

Function

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) By similarity. HAMAP-Rule MF_02002

Catalytic activity

ATP + L-isoleucine + tRNA(Ile) = AMP + diphosphate + L-isoleucyl-tRNA(Ile). HAMAP-Rule MF_02002

Cofactor

Binds 1 zinc ion per subunit By similarity. HAMAP-Rule MF_02002

Subunit structure

Monomer By similarity. HAMAP-Rule MF_02002

Subcellular location

Cytoplasm By similarity HAMAP-Rule MF_02002.

Domain

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)) By similarity. HAMAP-Rule MF_02002

Sequence similarities

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

Ontologies

Keywords
   Biological processProtein biosynthesis
   Cellular componentCytoplasm
   LigandATP-binding
Metal-binding
Nucleotide-binding
Zinc
   Molecular functionAminoacyl-tRNA synthetase
Ligase
   Technical termComplete proteome
Gene Ontology (GO)
   Biological_processisoleucyl-tRNA aminoacylation

Inferred from electronic annotation. Source: UniProtKB-HAMAP

   Cellular_componentcytoplasm

Inferred from electronic annotation. Source: UniProtKB-SubCell

   Molecular_functionATP binding

Inferred from electronic annotation. Source: UniProtKB-HAMAP

aminoacyl-tRNA editing activity

Inferred from electronic annotation. Source: InterPro

isoleucine-tRNA ligase activity

Inferred from electronic annotation. Source: UniProtKB-HAMAP

zinc ion binding

Inferred from electronic annotation. Source: UniProtKB-HAMAP

Complete GO annotation...

Sequence annotation (Features)

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifier

Molecule processing

Chain1 – 927927Isoleucine--tRNA ligase HAMAP-Rule MF_02002
PRO_1000022136

Regions

Motif60 – 7011"HIGH" region HAMAP-Rule MF_02002
Motif598 – 6025"KMSKS" region HAMAP-Rule MF_02002

Sites

Metal binding8951Zinc By similarity
Metal binding8981Zinc By similarity
Metal binding9151Zinc By similarity
Metal binding9181Zinc By similarity
Binding site5571Aminoacyl-adenylate By similarity
Binding site6011ATP By similarity

Sequences

Sequence LengthMass (Da)Tools
Q0AYC7 [UniParc].

Last modified October 17, 2006. Version 1.
Checksum: 80F3124F415B3392

FASTA927105,649
        10         20         30         40         50         60 
MAKGKYDGTL NLPQTGFPMR ANLPQREPEI LKFWDEIDIY RRIQEKNAGR PQFILHDGPP 

        70         80         90        100        110        120 
YANGNIHLGH TLNKVLKDII VKYRSMSGYD SPYIPGWDTH GLPIEQQAIK NLGIDRHKTD 

       130        140        150        160        170        180 
VVEFREHCRD YALKYVEIQK EQFKRLGVRG DWEDPYLTLS PGFESIQIKV FGEMAKKGFI 

       190        200        210        220        230        240 
YKGLKPVYWC GDCETALAEA EVEYNEKVSP SIYVKFPVKD GKGVLPEDAF VIIWTTTPWT 

       250        260        270        280        290        300 
LPANTGICLH PGFDYVLLEV KGEKYLLAQG LLEAVAGELG WDNYQILDKY KGEELERVIC 

       310        320        330        340        350        360 
HHPFFARDSL LVLGEHVTLE AGTGCVHTAP GHGEDDFHVG QEYGLEVISP VDDRGRFTAE 

       370        380        390        400        410        420 
AEKFQGLYVH DANKAVIEEL EKRNMLLKAA SIEHQYPYCW RCKQPIIYRA TEQWFASIDG 

       430        440        450        460        470        480 
FRQDALNAID TVKWIPSWGR DRIFNMIRDR GDWCISRQRT WGVPIPIFYC ESCGEALIND 

       490        500        510        520        530        540 
ETIQRVSELF AANGSDIWFA KTAAELMPPG CSCEHCGGST FRKESDIMDV WFDSGSSHMA 

       550        560        570        580        590        600 
VLEPRQELRW PSDMYLEGSD QHRGWFNSSL STAVAIRGAA PYREVLTHGF VVDEQGRKMS 

       610        620        630        640        650        660 
KSLGNVVDPL RMTREMGADI LRLWVSSADY RNDVSVSPNI IKQSAEAYRK IRNTCRFILG 

       670        680        690        700        710        720 
NLFDFDPGKE RVSYDKLSEL DQWALLKLDK LIRRVTKAYE DYEFHVVFHS MHNFCTVDLS 

       730        740        750        760        770        780 
NIYFDILKDK LYCSHPQDAE RKAAQTVLYD IINALVVMLT PILAFSSEEI WSYLKKEGQA 

       790        800        810        820        830        840 
ESVQLLEWPQ ANDEYLNQAI ENRMSRVLEL REVVTKALEE ARSKKVIGHS LGAWITIYAS 

       850        860        870        880        890        900 
PEWTELLKAT AGLEKIFIVS RAELKPETEA PAEALALEGV EGIRVMVQAA EGSKCERCWI 

       910        920 
IENSVGEDLK HPTLCQRCAE VVAQLQG 

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References

[1]"The genome of Syntrophomonas wolfei: new insights into syntrophic metabolism and biohydrogen production."
Sieber J.R., Sims D.R., Han C., Kim E., Lykidis A., Lapidus A.L., McDonnald E., Rohlin L., Culley D.E., Gunsalus R., McInerney M.J.
Environ. Microbiol. 12:2289-2301(2010) [PubMed] [Europe PMC] [Abstract]
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
Strain: DSM 2245B / Goettingen.

Cross-references

Sequence databases

EMBL
GenBank
DDBJ
CP000448 Genomic DNA. Translation: ABI68277.1.
RefSeqYP_753648.1. NC_008346.1.

3D structure databases

ProteinModelPortalQ0AYC7.
SMRQ0AYC7. Positions 5-925.
ModBaseSearch...
MobiDBSearch...

Protein-protein interaction databases

STRING335541.Swol_0962.

Protocols and materials databases

StructuralBiologyKnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaABI68277; ABI68277; Swol_0962.
GeneID4282126.
KEGGswo:Swol_0962.
PATRIC23856699. VBISynWol51738_1014.

Organism-specific databases

CMRSearch...

Phylogenomic databases

eggNOGCOG0060.
HOGENOMHOG000246402.
KOK01870.
OMAKPVHWCL.
OrthoDBEOG644ZM1.

Enzyme and pathway databases

BioCycSWOL335541:GHL1-991-MONOMER.

Family and domain databases

Gene3D1.10.730.10. 1 hit.
3.40.50.620. 2 hits.
3.90.740.10. 1 hit.
HAMAPMF_02002. Ile_tRNA_synth_type1.
InterProIPR001412. aa-tRNA-synth_I_CS.
IPR002300. aa-tRNA-synth_Ia.
IPR002301. Ile-tRNA-ligase.
IPR023585. Ile-tRNA-ligase_type1.
IPR014729. Rossmann-like_a/b/a_fold.
IPR009080. tRNAsynth_1a_anticodon-bd.
IPR013155. V/L/I-tRNA-synth_anticodon-bd.
IPR009008. Val/Leu/Ile-tRNA-synth_edit.
IPR010663. Znf_DNA_glyclase/IsotRNA_synth.
[Graphical view]
PANTHERPTHR11946:SF9. PTHR11946:SF9. 1 hit.
PfamPF08264. Anticodon_1. 1 hit.
PF00133. tRNA-synt_1. 1 hit.
PF06827. zf-FPG_IleRS. 1 hit.
[Graphical view]
PRINTSPR00984. TRNASYNTHILE.
SUPFAMSSF47323. SSF47323. 1 hit.
SSF50677. SSF50677. 1 hit.
TIGRFAMsTIGR00392. ileS. 1 hit.
PROSITEPS00178. AA_TRNA_LIGASE_I. 1 hit.
[Graphical view]
ProtoNetSearch...

Entry information

Entry nameSYI_SYNWW
AccessionPrimary (citable) accession number: Q0AYC7
Entry history
Integrated into UniProtKB/Swiss-Prot: January 15, 2008
Last sequence update: October 17, 2006
Last modified: May 14, 2014
This is version 64 of the entry and version 1 of the sequence. [Complete history]
Entry statusReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Relevant documents

SIMILARITY comments

Index of protein domains and families

Aminoacyl-tRNA synthetases

List of aminoacyl-tRNA synthetase entries