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B7N7Q0

- SYI_ECOLU

UniProt

B7N7Q0 - SYI_ECOLU

Protein

Isoleucine--tRNA ligase

Gene

ileS

Organism
Escherichia coli O17:K52:H18 (strain UMN026 / ExPEC)
Status
Reviewed - Annotation score: 3 out of 5- Protein inferred from homologyi
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    • History
      Entry version 42 (01 Oct 2014)
      Sequence version 1 (10 Feb 2009)
      Previous versions | rss
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    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 sitei561 – 5611Aminoacyl-adenylateUniRule annotation
    Binding sitei605 – 6051ATPUniRule annotation
    Metal bindingi901 – 9011ZincUniRule annotation
    Metal bindingi904 – 9041ZincUniRule annotation
    Metal bindingi921 – 9211ZincUniRule annotation
    Metal bindingi924 – 9241ZincUniRule 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

    Keywords - Molecular functioni

    Aminoacyl-tRNA synthetase, Ligase

    Keywords - Biological processi

    Protein biosynthesis

    Keywords - Ligandi

    ATP-binding, Metal-binding, Nucleotide-binding, Zinc

    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:ECUMN_0026
    OrganismiEscherichia coli O17:K52:H18 (strain UMN026 / ExPEC)
    Taxonomic identifieri585056 [NCBI]
    Taxonomic lineageiBacteriaProteobacteriaGammaproteobacteriaEnterobacterialesEnterobacteriaceaeEscherichia
    ProteomesiUP000007097: Chromosome

    Subcellular locationi

    Cytoplasm UniRule annotation

    GO - Cellular componenti

    1. cytoplasm Source: UniProtKB-SubCell

    Keywords - Cellular componenti

    Cytoplasm

    PTM / Processingi

    Molecule processing

    Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
    Chaini1 – 938938Isoleucine--tRNA ligasePRO_1000189161Add
    BLAST

    Amino acid modifications

    Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
    Modified residuei183 – 1831N6-acetyllysineUniRule annotation

    Keywords - PTMi

    Acetylation

    Interactioni

    Subunit structurei

    Monomer.UniRule annotation

    Protein-protein interaction databases

    STRINGi585056.ECUMN_0026.

    Structurei

    3D structure databases

    ProteinModelPortaliB7N7Q0.
    SMRiB7N7Q0. Positions 3-930.
    ModBaseiSearch...
    MobiDBiSearch...

    Family & Domainsi

    Motif

    Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
    Motifi58 – 6811"HIGH" regionAdd
    BLAST
    Motifi602 – 6065"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.
    OMAiKPVHWCL.
    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.

    B7N7Q0-1 [UniParc]FASTAAdd to Basket

    « Hide

    MSDYKSTLNL PETGFPMRGD LAKREPGMLA RWTDDDLYGI IRAAKKGKKT    50
    FILHDGPPYA NGSIHIGHSV NKILKDIIVK SKGLSGYDSP YVPGWDCHGL 100
    PIELKVEQEY GKPGEKFTAA EFRAKCREYA ATQVDGQRKD FIRLGVLGDW 150
    SHPYLTMDFK TEANIIRALG KIIGNGHLHK GAKPVHWCVD CRSALAEAEV 200
    EYYDKTSPSI DVAFQAVDQD ALKAKFAVSN VNGPISLVIW TTTPWTLPAN 250
    RAISIAPDFD YALVQIDGQA VILAKDLVES VMQRIGVTDY TILGTVKGAE 300
    LELLRFTHPF MGFDVPAILG DHVTLDAGTG AVHTAPGHGP DDYVIGQKYG 350
    LETANPVGPD GTYLPGTYPT LDGVNVFKAN DIVVALLQEK GALLHVEKMQ 400
    HSYPCCWRHK TPIIFRATPQ WFVSMDQKGL RAQSLKEIKG VQWIPDWGQA 450
    RIESMVANRP DWCISRQRTW GVPMSLFVHK DTEELHPRTL ELMEEVAKRV 500
    EVDGIQAWWD LDAKELLGDE ADQYVKVPDT LDVWFDSGST HSSVVDVRPE 550
    FAGHAADMYL EGSDQHRGWF MSSLMISTAM KGKAPYRQVL THGFTVDGQG 600
    RKMSKSIGNT VSPQDVMNKL GADILRLWVA STDYTGEMAV SDEILKRAAD 650
    SYRRIRNTAR FLLANLNGFD PAKDMVKPEE MVVLDRWAVG CAKAAQEDIL 700
    KAYEAYDFHE VVQRLMRFCS VEMGSFYLDI IKDRQYTAKA DSVARRSCQT 750
    ALYHIAEALV RWMAPILSFT ADEVWGYLPG EREKYVFTGE WYEGLFGLAD 800
    SEAMNDAFWD ELLKVRGEVN KVIEQARADK KVGGSLEAAV TLFAEPELAA 850
    KLTALGDELR FVLLTSGATV ADYNDAPADA QQSEVLKGLK VALSKAEGEK 900
    CPRCWHYTQD VGKVAEHAEI CGRCVSNVAG DGEKRKFA 938
    Length:938
    Mass (Da):104,265
    Last modified:February 10, 2009 - v1
    Checksum:i9F3B437A061A31EA
    GO

    Sequence databases

    Select the link destinations:
    EMBL
    GenBank
    DDBJ
    Links Updated
    CU928163 Genomic DNA. Translation: CAR11250.1.
    RefSeqiYP_002410805.1. NC_011751.1.

    Genome annotation databases

    EnsemblBacteriaiCAR11250; CAR11250; ECUMN_0026.
    GeneIDi7157687.
    KEGGieum:ECUMN_0026.
    PATRICi18439232. VBIEscCol32010_0210.

    Cross-referencesi

    Sequence databases

    Select the link destinations:
    EMBL
    GenBank
    DDBJ
    Links Updated
    CU928163 Genomic DNA. Translation: CAR11250.1 .
    RefSeqi YP_002410805.1. NC_011751.1.

    3D structure databases

    ProteinModelPortali B7N7Q0.
    SMRi B7N7Q0. Positions 3-930.
    ModBasei Search...
    MobiDBi Search...

    Protein-protein interaction databases

    STRINGi 585056.ECUMN_0026.

    Protocols and materials databases

    Structural Biology Knowledgebase Search...

    Genome annotation databases

    EnsemblBacteriai CAR11250 ; CAR11250 ; ECUMN_0026 .
    GeneIDi 7157687.
    KEGGi eum:ECUMN_0026.
    PATRICi 18439232. VBIEscCol32010_0210.

    Phylogenomic databases

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

    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: UMN026 / ExPEC.

    Entry informationi

    Entry nameiSYI_ECOLU
    AccessioniPrimary (citable) accession number: B7N7Q0
    Entry historyi
    Integrated into UniProtKB/Swiss-Prot: July 28, 2009
    Last sequence update: February 10, 2009
    Last modified: October 1, 2014
    This is version 42 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

    Documents

    1. Aminoacyl-tRNA synthetases
      List of aminoacyl-tRNA synthetase entries
    2. SIMILARITY comments
      Index of protein domains and families

    External Data

    Dasty 3