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Q4K5U4

- SYI_PSEF5

UniProt

Q4K5U4 - SYI_PSEF5

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Protein

Isoleucine--tRNA ligase

Gene

ileS

Organism
Pseudomonas fluorescens (strain Pf-5 / ATCC BAA-477)
Status
Reviewed - 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

Binds 1 zinc ion per subunit.UniRule annotation

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Binding sitei567 – 5671Aminoacyl-adenylateUniRule annotation
Binding sitei611 – 6111ATPUniRule annotation
Metal bindingi906 – 9061ZincUniRule annotation
Metal bindingi909 – 9091ZincUniRule annotation
Metal bindingi926 – 9261ZincUniRule annotation
Metal bindingi929 – 9291ZincUniRule 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

BioCyciPFLU220664:GIX8-5362-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:PFL_5321
OrganismiPseudomonas fluorescens (strain Pf-5 / ATCC BAA-477)
Taxonomic identifieri220664 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaGammaproteobacteriaPseudomonadalesPseudomonadaceaePseudomonas
ProteomesiUP000008540: Chromosome

Subcellular locationi

Cytoplasm UniRule annotation

GO - Cellular componenti

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

Keywords - Cellular componenti

Cytoplasm

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 943943Isoleucine--tRNA ligasePRO_0000098446Add
BLAST

Interactioni

Subunit structurei

Monomer.UniRule annotation

Protein-protein interaction databases

STRINGi220664.PFL_5321.

Structurei

3D structure databases

ProteinModelPortaliQ4K5U4.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Motif

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Motifi58 – 6811"HIGH" regionAdd
BLAST
Motifi608 – 6125"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.
OMAiKKRIELM.
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.
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]
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.

Q4K5U4-1 [UniParc]FASTAAdd to Basket

« Hide

        10         20         30         40         50
MTDYKATLNL PDTAFPMKAG LPQREPQILQ RWDSIGLYGK LREIGKDRPK
60 70 80 90 100
FVLHDGPPYA NGSIHIGHAV NKILKDMIIR SKTLAGFDAP YVPGWDCHGL
110 120 130 140 150
PIEHKVEVTH GKNLSSDQTR ELCRAYASEQ IEGQKAEFIR LGVLGDWANP
160 170 180 190 200
YKTMNFANEA GEIRALAEMV KGGFVFKGLK PVNWCFDCGS ALAEAEVEYQ
210 220 230 240 250
DKKSATIDVA FPVADEAKLA GAFGLAKLAK PAAIVIWTTT PWTIPANQAL
260 270 280 290 300
NVHPEFNYAL VDTGERLLVL AEELVESCLA RYNLEGSVIA TAPGSALELI
310 320 330 340 350
NFRHPFYDRL SPVYLAEYVE LGAGTGVVHS APAYGEDDFV TCKRYGMVND
360 370 380 390 400
DILNPVQSNG VYATSLEFFG GQFIWKANPA IVDKLSEVGA LLHTETISHS
410 420 430 440 450
YMHCWRHKTP LIYRATAQWF VGMDKQPAAG DTLRQRALQA IEDTQFVPAW
460 470 480 490 500
GQARLHSMIA NRPDWCISRQ RNWGVPIPFF LNKESGDLHP RTVELMEEVA
510 520 530 540 550
QRVEQEGIEA WFKMDAAELL GDEAAQYDKI SDTLDVWFDS GTTHWHVLRG
560 570 580 590 600
SHPMGHESGP RADLYLEGSD QHRGWFHSSL LTGCAIDNHA PYRELLTHGF
610 620 630 640 650
TVDENGRKMS KSLGNVIAPQ KVNDTLGADI MRLWVSATDY SGEMAVSDQI
660 670 680 690 700
LQRSADAYRR IRNTARFLLS NLSGFNPATD LLPAEDMLAL DRWAVDRTLL
710 720 730 740 750
LQRELELHYG EYRFWNVYSK VHNFCVQELG GFYLDIIKDR QYTTGANSKA
760 770 780 790 800
RRSAQTALYH ISEALVRWIA PILAFTADEL WEYLPGERNE SVMLNTWYEG
810 820 830 840 850
LTELPADFEL GREYWEGVMA VKVAVNKELE VQRAAKAVGG NLQAEVTLFA
860 870 880 890 900
EDGLAADLAK LSNELRFVLI TSTASLAPFA QAPADAVATE VPGLKLKVVK
910 920 930 940
SAFPKCARCW HCREDVGVHP EHPEICGRCV DNISGAGEVR HYA
Length:943
Mass (Da):105,158
Last modified:August 2, 2005 - v1
Checksum:i9D85035231BC03E5
GO

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
CP000076 Genomic DNA. Translation: AAY94531.1.
RefSeqiYP_262389.1. NC_004129.6.

Genome annotation databases

EnsemblBacteriaiAAY94531; AAY94531; PFL_5321.
GeneIDi3479713.
KEGGipfl:PFL_5321.
PATRICi19880121. VBIPseFlu72549_5431.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
CP000076 Genomic DNA. Translation: AAY94531.1 .
RefSeqi YP_262389.1. NC_004129.6.

3D structure databases

ProteinModelPortali Q4K5U4.
ModBasei Search...
MobiDBi Search...

Protein-protein interaction databases

STRINGi 220664.PFL_5321.

Protocols and materials databases

Structural Biology Knowledgebase Search...

Genome annotation databases

EnsemblBacteriai AAY94531 ; AAY94531 ; PFL_5321 .
GeneIDi 3479713.
KEGGi pfl:PFL_5321.
PATRICi 19880121. VBIPseFlu72549_5431.

Phylogenomic databases

eggNOGi COG0060.
HOGENOMi HOG000246402.
KOi K01870.
OMAi KKRIELM.
OrthoDBi EOG644ZM1.

Enzyme and pathway databases

BioCyci PFLU220664:GIX8-5362-MONOMER.

Family and domain databases

Gene3Di 1.10.730.10. 1 hit.
3.40.50.620. 2 hits.
3.90.740.10. 1 hit.
HAMAPi MF_02002. Ile_tRNA_synth_type1.
InterProi IPR001412. 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 ]
PANTHERi PTHR11946:SF9. PTHR11946:SF9. 1 hit.
Pfami PF08264. Anticodon_1. 1 hit.
PF00133. tRNA-synt_1. 1 hit.
PF06827. zf-FPG_IleRS. 1 hit.
[Graphical view ]
PRINTSi PR00984. TRNASYNTHILE.
SUPFAMi SSF47323. SSF47323. 1 hit.
SSF50677. SSF50677. 1 hit.
TIGRFAMsi TIGR00392. ileS. 1 hit.
PROSITEi PS00178. AA_TRNA_LIGASE_I. 1 hit.
[Graphical view ]
ProtoNeti Search...

Publicationsi

  1. Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: Pf-5 / ATCC BAA-477.

Entry informationi

Entry nameiSYI_PSEF5
AccessioniPrimary (citable) accession number: Q4K5U4
Entry historyi
Integrated into UniProtKB/Swiss-Prot: December 20, 2005
Last sequence update: August 2, 2005
Last modified: October 29, 2014
This is version 70 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