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Q39DM8 (SYI_BURS3) Reviewed, UniProtKB/Swiss-Prot

Last modified April 16, 2014. Version 66. 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:Bcep18194_A5844
OrganismBurkholderia sp. (strain 383) (Burkholderia cepacia (strain ATCC 17760 / NCIB 9086 / R18194)) [Complete proteome] [HAMAP]
Taxonomic identifier482957 [NCBI]
Taxonomic lineageBacteriaProteobacteriaBetaproteobacteriaBurkholderialesBurkholderiaceaeBurkholderiaBurkholderia cepacia complex

Protein attributes

Sequence length945 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 – 945945Isoleucine--tRNA ligase HAMAP-Rule MF_02002
PRO_1000022048

Regions

Motif66 – 7611"HIGH" region HAMAP-Rule MF_02002
Motif622 – 6265"KMSKS" region HAMAP-Rule MF_02002

Sites

Metal binding9081Zinc By similarity
Metal binding9111Zinc By similarity
Metal binding9281Zinc By similarity
Metal binding9311Zinc By similarity
Binding site5811Aminoacyl-adenylate By similarity
Binding site6251ATP By similarity

Sequences

Sequence LengthMass (Da)Tools
Q39DM8 [UniParc].

Last modified November 22, 2005. Version 1.
Checksum: C6F393E268E23A29

FASTA945105,866
        10         20         30         40         50         60 
MSNKKADSKP QAKYPVNLLD TPFPMRGDLP KREPQWVKEW EERGIYEKIR AASAGRPKFI 

        70         80         90        100        110        120 
LHDGPPYANG DIHLGHAVNK ILKDIVVKSR NMAGFDAPYV PGWDCHGMPI EIQIEKQFGK 

       130        140        150        160        170        180 
SLPAAEVMSK ARAYATEQIE KQKVGFKRLG VLGDWANPYK TMNFVNEAEE LRALGKIIEK 

       190        200        210        220        230        240 
GYVYRGLKPV NWCFDCGSAL AEAEVEYKDR TDPTIDVMFA FAEPEKTAQA FGLPALPRAE 

       250        260        270        280        290        300 
GGIVIWTTTP WTIPANQALN LHPEIVYALV DTERGLLIIA EERVEACMTD FKLTGRVVAT 

       310        320        330        340        350        360 
APGVKLAGLR FHHPLASAHP GYKRTAPVYL GDYVTTDTGT GVVHSSPAYG IEDFVSCKAH 

       370        380        390        400        410        420 
GMTDSDFINP VMGDGRYIES LPLFGGLSIW DANPKIVEAL NAAGSLLRSE KYTHSYMHCW 

       430        440        450        460        470        480 
RHKTPIIYRA TSQWFAGMDV TPRDGGKTLR ETALEGVDAT AFYPSWGKQR LFSMIANRPD 

       490        500        510        520        530        540 
WTLSRQRQWG VPMAFFVHKE TGELHPRTLE LLEEVAKRVE QSGIEAWQTL DPRELIGDDA 

       550        560        570        580        590        600 
NLYEKNRDTL DVWFDSGTTH WHVLRGSHKD QLQFPADLYL EGSDQHRGWF HSSLLTASMI 

       610        620        630        640        650        660 
DGRAPYKGLL THGFTVDGEG RKMSKSLGNG IDPHEVANRL GAEIIRLWIA STDYSGELAI 

       670        680        690        700        710        720 
SEEILKRVTE GYRRIRNTLR FLLANLSDFD FAQHAVPVDE WLEIDRYAVA FSQQLQTELL 

       730        740        750        760        770        780 
GHYEKYEFHP VVAKLQTYCS EDLGGFYLDV LKDRLYTSAA DSRARRSAQT ALYHLTHGLL 

       790        800        810        820        830        840 
RVLAPFLSFT AEEAWKVFQP ASDTIYTETY YAYPEVAGSA ALIEKWALLR DVRGNVTKAL 

       850        860        870        880        890        900 
EEARTANRIG SSLQAEVAVH ASGARYDALT SLGDDLKFVL ITSAATVVKV DDEAQESVDV 

       910        920        930        940 
AASKYQKCER CWHYREDVGA HADHPTLCGR CFSNLFENGE IRSAA 

« Hide

References

[1]"Complete sequence of chromosome 1 of Burkholderia sp. 383."
US DOE Joint Genome Institute
Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C., Glavina T., Hammon N., Israni S., Pitluck S., Chain P., Malfatti S., Shin M., Vergez L., Schmutz J., Larimer F., Land M., Kyrpides N., Lykidis A., Richardson P.
Submitted (OCT-2005) to the EMBL/GenBank/DDBJ databases
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
Strain: 383.

Cross-references

Sequence databases

EMBL
GenBank
DDBJ
CP000151 Genomic DNA. Translation: ABB09438.1.
RefSeqYP_370082.1. NC_007510.1.

3D structure databases

ProteinModelPortalQ39DM8.
ModBaseSearch...
MobiDBSearch...

Protein-protein interaction databases

STRING269483.Bcep18194_A5844.

Proteomic databases

PRIDEQ39DM8.

Protocols and materials databases

StructuralBiologyKnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaABB09438; ABB09438; Bcep18194_A5844.
GeneID3751075.
KEGGbur:Bcep18194_A5844.
PATRIC19289189. VBIBurSp120713_3972.

Organism-specific databases

CMRSearch...

Phylogenomic databases

eggNOGCOG0060.
HOGENOMHOG000246402.
KOK01870.
OMAVLGDWDN.
OrthoDBEOG644ZM1.
ProtClustDBPRK05743.

Enzyme and pathway databases

BioCycBSP269483:GHLS-2731-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_BURS3
AccessionPrimary (citable) accession number: Q39DM8
Entry history
Integrated into UniProtKB/Swiss-Prot: January 15, 2008
Last sequence update: November 22, 2005
Last modified: April 16, 2014
This is version 66 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