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B4E8Z7 (SYI_BURCJ) Reviewed, UniProtKB/Swiss-Prot

Last modified May 1, 2013. Version 42. Feed History...

Clusters with 100%, 90%, 50% identity | Documents (2) | Third-party data text xml rdf/xml gff fasta
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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:BceJ2315_26630
ORF Names:BCAL2724
OrganismBurkholderia cepacia (strain J2315 / LMG 16656) (Burkholderia cenocepacia (strain J2315)) [Complete proteome] [HAMAP]
Taxonomic identifier216591 [NCBI]
Taxonomic lineageBacteria › Proteobacteria › Betaproteobacteria › Burkholderiales › Burkholderiaceae › Burkholderia › Burkholderia 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.

Subunit structure

Monomer By similarity.

Subcellular location

Cytoplasm By similarity.

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.

Sequence annotation (Features)

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifier

Molecule processing

Chain1 – 945945Isoleucine--tRNA ligase HAMAP-Rule MF_02002
PRO_1000189137

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
B4E8Z7 [UniParc].

Last modified September 23, 2008. Version 1.
Checksum: 7ADA80286C212E62

FASTA945106,014
        10         20         30         40         50         60 
MSNKKADSKP QAKYPVNLLD TPFPMRGDLP KREPQWVKEW EERGIYDKIR AASQGRPKFI 

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

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

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

       250        260        270        280        290        300 
GGIVIWTTTP WTIPANQALN LHPEIVYALV DTERGLLIIA EERVEACMSD FKLTGRIIAT 

       310        320        330        340        350        360 
TPGVKLANLR FHHPLASAHP GYKRTAPVYL GDYVTTDTGT GVVHSSPAYG IEDFMSCKAH 

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

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

       490        500        510        520        530        540 
WTLSRQRQWG VPMAFFVHKE TGELHPRTLE LLEEVAKRVE QSGIEAWQSL 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 ASDTIFTETY YAYPEVAGSA ALIDKWALLR DVRGNVTKAL 

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

       910        920        930        940 
AASKYQKCER CWHYREDVGA HAEHPTLCGR CFSNLFENGE IRSAA

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References

[1]"Genomic analysis of Burkholderia cenocepacia J2315, an epidemic cystic fibrosis pathogen."
Holden M.T.G.
Submitted (JUN-2007) to the EMBL/GenBank/DDBJ databases
Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
Strain: J2315 / LMG 16656.

Cross-references

Sequence databases

EMBL
GenBank
DDBJ		AM747720 Genomic DNA. Translation: CAR53025.1.
RefSeqYP_002231827.1. NC_011000.1.

3D structure databases

ProteinModelPortalB4E8Z7.
ModBaseSearch...

Protein-protein interaction databases

STRING216591.BCAL2724.

Proteomic databases

PRIDEB4E8Z7.

Protocols and materials databases

StructuralBiologyKnowledgebaseSearch...

Genome annotation databases

GeneID6932746.
KEGGbcj:BCAL2724.
PATRIC19077369. VBIBurCen118154_2819.

Organism-specific databases

CMRSearch...

Phylogenomic databases

eggNOGCOG0060.
HOGENOMHOG000246402.
KOK01870.
OMAKQVLTHG.
ProtClustDBPRK05743.

Enzyme and pathway databases

BioCycBCEN216591:GJI4-2780-MONOMER.

Family and domain databases

Gene3D3.40.50.620. 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. tRNAsyn_1a_bind. 1 hit.
SSF50677. ValRS_IleRS_edit. 1 hit.
TIGRFAMsTIGR00392. ileS. 1 hit.
PROSITEPS00178. AA_TRNA_LIGASE_I. 1 hit.
[Graphical view]
ProtoNetSearch...

Entry information

Entry nameSYI_BURCJ
AccessionPrimary (citable) accession number: B4E8Z7
Entry history
Integrated into UniProtKB/Swiss-Prot: July 28, 2009
Last sequence update: September 23, 2008
Last modified: May 1, 2013
This is version 42 of the entry and version 1 of the sequence. [Complete history]
Entry statusReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Relevant documents

Aminoacyl-tRNA synthetases

List of aminoacyl-tRNA synthetase entries

SIMILARITY comments

Index of protein domains and families

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