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Protein

Isoleucine--tRNA ligase

Gene

ileS

Organism
Geobacillus sp. (strain WCH70)
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 sitei552 – 5521Aminoacyl-adenylateUniRule annotation
Binding sitei596 – 5961ATPUniRule annotation
Metal bindingi890 – 8901ZincUniRule annotation
Metal bindingi893 – 8931ZincUniRule annotation
Metal bindingi910 – 9101ZincUniRule annotation
Metal bindingi913 – 9131ZincUniRule annotation

GO - Molecular functioni

  1. aminoacyl-tRNA editing activity Source: InterPro
  2. ATP binding Source: UniProtKB-HAMAP
  3. isoleucine-tRNA ligase activity Source: UniProtKB-HAMAP
  4. zinc ion binding Source: UniProtKB-HAMAP

GO - Biological processi

  1. isoleucyl-tRNA aminoacylation Source: UniProtKB-HAMAP
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

BioCyciGSP471223:GH2C-1123-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:GWCH70_1039
OrganismiGeobacillus sp. (strain WCH70)
Taxonomic identifieri471223 [NCBI]
Taxonomic lineageiBacteriaFirmicutesBacilliBacillalesBacillaceaeGeobacillus
ProteomesiUP000002386: Chromosome

Subcellular locationi

Cytoplasm UniRule annotation

GO - Cellular componenti

  1. cytoplasm Source: UniProtKB-SubCell
Complete GO annotation...

Keywords - Cellular componenti

Cytoplasm

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 923923Isoleucine--tRNA ligasePRO_1000216236Add
BLAST

Interactioni

Subunit structurei

Monomer.UniRule annotation

Protein-protein interaction databases

STRINGi471223.GWCH70_1039.

Structurei

3D structure databases

ProteinModelPortaliC5D8P2.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Motif

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Motifi57 – 6711"HIGH" regionAdd
BLAST
Motifi593 – 5975"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.

C5D8P2-1 [UniParc]FASTAAdd to Basket

« Hide

        10         20         30         40         50
MDYKETLLMP QTEFPMRGNL PKREPEIQKK WEEMDIYRKV QERTKGRPLF
60 70 80 90 100
VLHDGPPYAN GDIHMGHALN KILKDIIVRY KSMSGYCAPY VPGWDTHGLP
110 120 130 140 150
IETALTKKGV DRKSMSVAEF RKLCEQYAYE QINNQREQFK RLGVRGDWEN
160 170 180 190 200
PYITLKPEYE AQQIKVFGEM AKKGLIYKGL KPVYWSPSSE SALAEAEIEY
210 220 230 240 250
KDKRSPSIYV AFPVKDGKGV LDGDEKIVIW TTTPWTIPAN LAIAVHPDLD
260 270 280 290 300
YQVVETNGAK YVVAAALLES VAKEIGWDEV TVVKTIKGKD LEYVVAKHPF
310 320 330 340 350
YDRDSLVICG EHVTTDAGTG CVHTAPGHGE DDFIVGQKYG LDVLCPVDER
360 370 380 390 400
GYMTSEAPGF EGLFYDEANK AITQKLEEVG ALLKLSFITH SYPHDWRTKK
410 420 430 440 450
PTIFRATTQW FASIDKIRGE LLQAIKETKW IPEWGEIRIH NMIRDRGDWC
460 470 480 490 500
ISRQRAWGVP IPVFYGENGE PIITDETIEH VSNLFRQYGS NVWFEREAKD
510 520 530 540 550
LLPEGFTHPS SPNGIFTKEI DIMDVWFDSG SSHQAVLVER DDLQRPADLY
560 570 580 590 600
LEGSDQYRGW FNSSLSTAVA VTGKAPYKAV LSHGFVLDGE GRKMSKSLGN
610 620 630 640 650
VVVPAKVMEQ LGADILRLWV ASVDYQADVR ISDSILKQVA EVYRKIRNTF
660 670 680 690 700
RFMLGNLFDF NPETDAVPVN ELREVDRYMI VKLNHLIENV KHAYETYDFA
710 720 730 740 750
SIYHDVNNFC TVDLSAFYLD FAKDILYIEA PNDRARRSIQ TVLYETVVAL
760 770 780 790 800
TKLVAPILPH TAEEVWEHIP NRKEKEESVQ LVDMPETINI DEEDAIVAKW
810 820 830 840 850
DAFMNLRDDV LKALEVARNE KVIGKSLTAS VTVYPTKEAR QLLGSIEEDL
860 870 880 890 900
KQLFIVSEFT IADDYEHAPE DAQKLANVAV IVKPAEGETC ERCWVVTPEV
910 920
GKDADHPTLC PRCAHIVKEH YSA
Length:923
Mass (Da):104,948
Last modified:July 28, 2009 - v1
Checksum:i631E16D4758054CC
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP001638 Genomic DNA. Translation: ACS23899.1.
RefSeqiWP_015863374.1. NC_012793.1.
YP_002949165.1. NC_012793.1.

Genome annotation databases

EnsemblBacteriaiACS23899; ACS23899; GWCH70_1039.
GeneIDi7976822.
KEGGigwc:GWCH70_1039.
PATRICi21971004. VBIGeoSp101709_1117.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP001638 Genomic DNA. Translation: ACS23899.1.
RefSeqiWP_015863374.1. NC_012793.1.
YP_002949165.1. NC_012793.1.

3D structure databases

ProteinModelPortaliC5D8P2.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

STRINGi471223.GWCH70_1039.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiACS23899; ACS23899; GWCH70_1039.
GeneIDi7976822.
KEGGigwc:GWCH70_1039.
PATRICi21971004. VBIGeoSp101709_1117.

Phylogenomic databases

eggNOGiCOG0060.
HOGENOMiHOG000246402.
KOiK01870.
OMAiVLGDWDN.
OrthoDBiEOG644ZM1.

Enzyme and pathway databases

BioCyciGSP471223:GH2C-1123-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: WCH70.

Entry informationi

Entry nameiSYI_GEOSW
AccessioniPrimary (citable) accession number: C5D8P2
Entry historyi
Integrated into UniProtKB/Swiss-Prot: September 22, 2009
Last sequence update: July 28, 2009
Last modified: January 7, 2015
This is version 44 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, Reference 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.