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Q6GA19

- SYI_STAAS

UniProt

Q6GA19 - SYI_STAAS

Protein

Isoleucine--tRNA ligase

Gene

ileS

Organism
Staphylococcus aureus (strain MSSA476)
Status
Reviewed - Annotation score: 3 out of 5- Protein inferred from homologyi
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    • History
      Entry version 74 (01 Oct 2014)
      Sequence version 1 (19 Jul 2004)
      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) By similarity.By similarity

    Catalytic activityi

    ATP + L-isoleucine + tRNA(Ile) = AMP + diphosphate + L-isoleucyl-tRNA(Ile).

    Cofactori

    Binds 1 zinc ion per subunit.By similarity

    Sites

    Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
    Binding sitei554 – 5541Aminoacyl-adenylateBy similarity
    Binding sitei598 – 5981ATPBy similarity
    Metal bindingi886 – 8861ZincBy similarity
    Metal bindingi889 – 8891ZincBy similarity
    Metal bindingi906 – 9061ZincBy similarity
    Metal bindingi909 – 9091ZincBy similarity

    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 ligase (EC:6.1.1.5)
    Alternative name(s):
    Isoleucyl-tRNA synthetase
    Short name:
    IleRS
    Gene namesi
    Name:ileS
    Ordered Locus Names:SAS1127
    OrganismiStaphylococcus aureus (strain MSSA476)
    Taxonomic identifieri282459 [NCBI]
    Taxonomic lineageiBacteriaFirmicutesBacilliBacillalesStaphylococcus
    ProteomesiUP000002201: Chromosome

    Subcellular locationi

    Cytoplasm By similarity

    GO - Cellular componenti

    1. cytoplasm Source: UniProtKB-SubCell

    Keywords - Cellular componenti

    Cytoplasm

    PTM / Processingi

    Molecule processing

    Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
    Chaini1 – 917917Isoleucine--tRNA ligasePRO_0000098466Add
    BLAST

    Proteomic databases

    PRIDEiQ6GA19.

    Interactioni

    Subunit structurei

    Monomer.By similarity

    Protein-protein interaction databases

    STRINGi282459.SAS1127.

    Structurei

    3D structure databases

    ProteinModelPortaliQ6GA19.
    SMRiQ6GA19. Positions 1-917.
    ModBaseiSearch...
    MobiDBiSearch...

    Family & Domainsi

    Motif

    Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
    Motifi57 – 6711"HIGH" regionAdd
    BLAST
    Motifi595 – 5995"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)) By similarity.By similarity

    Sequence similaritiesi

    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.

    Q6GA19-1 [UniParc]FASTAAdd to Basket

    « Hide

    MDYKETLLMP KTDFPMRGGL PNKEPQIQEK WDAEDQYHKA LEKNKGNETF    50
    ILHDGPPYAN GNLHMGHALN KILKDFIVRY KTMQGFYAPY VPGWDTHGLP 100
    IEQALTKKGV DRKKMSTAEF REKCKEFALE QIELQKKDFR RLGVRGDFND 150
    PYITLKPEYE AAQIRIFGEM ADKGLIYKGK KPVYWSPSSE SSLAEAEIEY 200
    HDKRSASIYV AFDVKDDKGV VDADAKFIIW TTTPWTIPSN VAITVHPELK 250
    YGQYNVDGEK YIIAEALSDA VAEALDWDKA SIKLEKEYTG KELEYVVAQH 300
    PFLDRESLVI NGDHVTTDAG TGCVHTAPGH GEDDYIVGQK YELPVISPID 350
    DKGVFTEEGG QFEGMFYDKA NKAVTDLLTE KGALLKLDFI THSYPHDWRT 400
    KKPVIFRATP QWFASISKVR QDILDAIENT NFKVNWGKTR IYNMVRDRGE 450
    WVISRQRVWG VPLPVFYAEN GEIIMTKETV NHVADLFAEH GSNIWFEREA 500
    KDLLPEGFTH PGSPNGTFTK ETDIMDVWFD SGSSHRGVLE TRPELSFPAD 550
    MYLEGSDQYR GWFNSSITTS VATRGVSPYK FLLSHGFVMD GEGKKMSKSL 600
    GNVIVPDQVV KQKGADIARL WVSSTDYLAD VRISDEILKQ TSDVYRKIRN 650
    TLRFMLGNIN DFNPDTDSIT ESELLEVDRY LLNRLREFTA STINNYENFD 700
    YLNIYQEVQN FINVELSNFY LDYGKDILYI EQRDSHIRRS MQTVLYQILV 750
    DMTKLLAPIL VHTAEEVWSH TPHVKEESVH LADMPKVVEV DQALLDKWRT 800
    FMNLRDDVNR ALETARNEKV IGKSLEAKVT IASNDKFNAS EFLTSFDALH 850
    QLFIVSQVKV VDKLDDQATA YEHGDIVIEH ADGEKCERCW NYSEDLGAVD 900
    ELTHLCPRCQ QVVKSLV 917
    Length:917
    Mass (Da):104,891
    Last modified:July 19, 2004 - v1
    Checksum:i2DBFEA99851FFACB
    GO

    Sequence databases

    Select the link destinations:
    EMBL
    GenBank
    DDBJ
    Links Updated
    BX571857 Genomic DNA. Translation: CAG42904.1.
    RefSeqiYP_043254.1. NC_002953.3.

    Genome annotation databases

    GeneIDi2862471.
    KEGGisas:SAS1127.
    PATRICi19551709. VBIStaAur96780_1172.

    Cross-referencesi

    Sequence databases

    Select the link destinations:
    EMBL
    GenBank
    DDBJ
    Links Updated
    BX571857 Genomic DNA. Translation: CAG42904.1 .
    RefSeqi YP_043254.1. NC_002953.3.

    3D structure databases

    ProteinModelPortali Q6GA19.
    SMRi Q6GA19. Positions 1-917.
    ModBasei Search...
    MobiDBi Search...

    Protein-protein interaction databases

    STRINGi 282459.SAS1127.

    Proteomic databases

    PRIDEi Q6GA19.

    Protocols and materials databases

    Structural Biology Knowledgebase Search...

    Genome annotation databases

    GeneIDi 2862471.
    KEGGi sas:SAS1127.
    PATRICi 19551709. VBIStaAur96780_1172.

    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: MSSA476.

    Entry informationi

    Entry nameiSYI_STAAS
    AccessioniPrimary (citable) accession number: Q6GA19
    Entry historyi
    Integrated into UniProtKB/Swiss-Prot: December 20, 2005
    Last sequence update: July 19, 2004
    Last modified: October 1, 2014
    This is version 74 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