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Q7A5Y5

- TOP1_STAAN

UniProt

Q7A5Y5 - TOP1_STAAN

Protein

DNA topoisomerase 1

Gene

topA

Organism
Staphylococcus aureus (strain N315)
Status
Reviewed - Annotation score: 4 out of 5- Experimental evidence at protein leveli
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    • History
      Entry version 83 (01 Oct 2014)
      Sequence version 1 (05 Jul 2004)
      Previous versions | rss
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    Functioni

    Releases the supercoiling and torsional tension of DNA, which is introduced during the DNA replication and transcription, by transiently cleaving and rejoining one strand of the DNA duplex. Introduces a single-strand break via transesterification at a target site in duplex DNA. The scissile phosphodiester is attacked by the catalytic tyrosine of the enzyme, resulting in the formation of a DNA-(5'-phosphotyrosyl)-enzyme intermediate and the expulsion of a 3'-OH DNA strand. The free DNA strand then undergoes passage around the unbroken strand, thus removing DNA supercoils. Finally, in the religation step, the DNA 3'-OH attacks the covalent intermediate to expel the active-site tyrosine and restore the DNA phosphodiester backbone.UniRule annotation

    Catalytic activityi

    ATP-independent breakage of single-stranded DNA, followed by passage and rejoining.UniRule annotation

    Cofactori

    Magnesium. Binds two Mg2+ per subunit.UniRule annotation

    Sites

    Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
    Metal bindingi9 – 91Magnesium 1; catalyticUniRule annotation
    Sitei33 – 331Interaction with DNAUniRule annotation
    Metal bindingi82 – 821Magnesium 1; catalyticUniRule annotation
    Metal bindingi82 – 821Magnesium 2UniRule annotation
    Metal bindingi84 – 841Magnesium 2UniRule annotation
    Sitei139 – 1391Interaction with DNAUniRule annotation
    Sitei140 – 1401Interaction with DNAUniRule annotation
    Sitei143 – 1431Interaction with DNAUniRule annotation
    Sitei148 – 1481Interaction with DNAUniRule annotation
    Sitei155 – 1551Interaction with DNAUniRule annotation
    Active sitei298 – 2981O-(5'-phospho-DNA)-tyrosine intermediateUniRule annotation
    Sitei300 – 3001Interaction with DNAUniRule annotation
    Sitei488 – 4881Interaction with DNAUniRule annotation

    Regions

    Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
    Zinc fingeri577 – 60327C4-type 1Add
    BLAST
    Zinc fingeri617 – 64529C4-type 2Add
    BLAST
    Zinc fingeri658 – 68124C4-type 3Add
    BLAST

    GO - Molecular functioni

    1. DNA binding Source: UniProtKB-KW
    2. DNA topoisomerase type I activity Source: UniProtKB-HAMAP
    3. magnesium ion binding Source: UniProtKB-HAMAP

    GO - Biological processi

    1. DNA topological change Source: UniProtKB-HAMAP

    Keywords - Molecular functioni

    Isomerase, Topoisomerase

    Keywords - Ligandi

    DNA-binding, Magnesium, Metal-binding, Zinc

    Enzyme and pathway databases

    BioCyciSAUR158879:GJCB-1153-MONOMER.

    Names & Taxonomyi

    Protein namesi
    Recommended name:
    DNA topoisomerase 1UniRule annotation (EC:5.99.1.2UniRule annotation)
    Alternative name(s):
    DNA topoisomerase IUniRule annotation
    Omega-protein
    Relaxing enzyme
    Swivelase
    Untwisting enzyme
    Gene namesi
    Name:topAUniRule annotation
    Ordered Locus Names:SA1093
    OrganismiStaphylococcus aureus (strain N315)
    Taxonomic identifieri158879 [NCBI]
    Taxonomic lineageiBacteriaFirmicutesBacilliBacillalesStaphylococcus
    ProteomesiUP000000751: Chromosome

    Subcellular locationi

    GO - Cellular componenti

    1. chromosome Source: InterPro

    PTM / Processingi

    Molecule processing

    Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
    Chaini1 – 689689DNA topoisomerase 1PRO_0000285941Add
    BLAST

    Proteomic databases

    PRIDEiQ7A5Y5.

    Interactioni

    Subunit structurei

    Monomer.UniRule annotation

    Protein-protein interaction databases

    STRINGi158879.SA1093.

    Structurei

    3D structure databases

    ProteinModelPortaliQ7A5Y5.
    SMRiQ7A5Y5. Positions 5-609.
    ModBaseiSearch...
    MobiDBiSearch...

    Family & Domainsi

    Domains and Repeats

    Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
    Domaini3 – 113111ToprimUniRule annotationAdd
    BLAST

    Region

    Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
    Regioni163 – 1686Interaction with DNAUniRule annotation

    Sequence similaritiesi

    Belongs to the type IA topoisomerase family.UniRule annotation
    Contains 1 Toprim domain.UniRule annotation

    Zinc finger

    Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
    Zinc fingeri577 – 60327C4-type 1Add
    BLAST
    Zinc fingeri617 – 64529C4-type 2Add
    BLAST
    Zinc fingeri658 – 68124C4-type 3Add
    BLAST

    Keywords - Domaini

    Repeat, Zinc-finger

    Phylogenomic databases

    eggNOGiCOG0551.
    HOGENOMiHOG000004018.
    KOiK03168.
    OMAiVVECDKC.
    OrthoDBiEOG6S7XQ9.

    Family and domain databases

    Gene3Di1.10.460.10. 2 hits.
    2.70.20.10. 2 hits.
    3.40.50.140. 1 hit.
    HAMAPiMF_00952. Topoisom_1_prok.
    InterProiIPR000380. Topo_IA.
    IPR003601. Topo_IA_2.
    IPR023406. Topo_IA_AS.
    IPR013497. Topo_IA_cen.
    IPR013824. Topo_IA_cen_sub1.
    IPR013825. Topo_IA_cen_sub2.
    IPR023405. Topo_IA_core_domain.
    IPR003602. Topo_IA_DNA-bd.
    IPR013498. Topo_IA_Znf.
    IPR005733. TopoI_bac-type.
    IPR028612. Topoisom_1_IA.
    IPR006171. Toprim_domain.
    [Graphical view]
    PANTHERiPTHR11390. PTHR11390. 1 hit.
    PfamiPF01131. Topoisom_bac. 1 hit.
    PF01751. Toprim. 1 hit.
    PF01396. zf-C4_Topoisom. 2 hits.
    [Graphical view]
    PRINTSiPR00417. PRTPISMRASEI.
    SMARTiSM00437. TOP1Ac. 1 hit.
    SM00436. TOP1Bc. 1 hit.
    SM00493. TOPRIM. 1 hit.
    [Graphical view]
    SUPFAMiSSF56712. SSF56712. 1 hit.
    TIGRFAMsiTIGR01051. topA_bact. 1 hit.
    PROSITEiPS00396. TOPOISOMERASE_I_PROK. 1 hit.
    PS50880. TOPRIM. 1 hit.
    [Graphical view]

    Sequencei

    Sequence statusi: Complete.

    Q7A5Y5-1 [UniParc]FASTAAdd to Basket

    « Hide

    MADNLVIVES PAKAKTIEKY LGKKYKVIAS MGHVRDLPRS QMGVDTEDNY    50
    EPKYITIRGK GPVVKELKKH AKKAKNVFLA SDPDREGEAI AWHLSKILEL 100
    EDSKENRVVF NEITKDAVKE SFKNPREIEM NLVDAQQARR ILDRLVGYNI 150
    SPVLWKKVKK GLSAGRVQSV ALRLVIDREN EIRNFKPEEY WTIEGEFRYK 200
    KSKFNAKFLH YKNKPFKLKT KKDVEKITAA LDGDQFEITN VTKKEKTRNP 250
    ANPFTTSTLQ QEAARKLNFK ARKTMMVAQQ LYEGIDLKKQ GTIGLITYMR 300
    TDSTRISDTA KAEAKQYITD KYGESYTSKR KASGKQGDQD AHEAIRPSST 350
    MRTPDDMKSF LTKDQYRLYK LIWERFVASQ MAPAILDTVS LDITQGDIKF 400
    RANGQTIKFK GFMTLYVETK DDSDSEKENK LPKLEQGDKV TATQIEPAQH 450
    YTQPPPRYTE ARLVKTLEEL KIGRPSTYAP TIDTIQKRNY VKLESKRFVP 500
    TELGEIVHEQ VKEYFPEIID VEFTVNMETL LDKIAEGDIT WRKVIDGFFS 550
    SFKQDVERAE EEMEKIEIKD EPAGEDCEVC GSPMVIKMGR YGKFMACSNF 600
    PDCRNTKAIV KSIGVKCPKC NDGDVVERKS KKNRVFYGCS KYPECDFISW 650
    DKPIGRDCPK CNQYLVENKK GKTTQVICSN CDYKEAAQK 689
    Length:689
    Mass (Da):79,071
    Last modified:July 5, 2004 - v1
    Checksum:i05A19252CCC9EFDD
    GO

    Sequence databases

    Select the link destinations:
    EMBL
    GenBank
    DDBJ
    Links Updated
    BA000018 Genomic DNA. Translation: BAB42345.1.
    PIRiE89898.
    RefSeqiNP_374366.1. NC_002745.2.

    Genome annotation databases

    EnsemblBacteriaiBAB42345; BAB42345; BAB42345.
    GeneIDi1123924.
    KEGGisau:SA1093.
    PATRICi19574406. VBIStaAur116463_1172.

    Cross-referencesi

    Sequence databases

    Select the link destinations:
    EMBL
    GenBank
    DDBJ
    Links Updated
    BA000018 Genomic DNA. Translation: BAB42345.1 .
    PIRi E89898.
    RefSeqi NP_374366.1. NC_002745.2.

    3D structure databases

    ProteinModelPortali Q7A5Y5.
    SMRi Q7A5Y5. Positions 5-609.
    ModBasei Search...
    MobiDBi Search...

    Protein-protein interaction databases

    STRINGi 158879.SA1093.

    Proteomic databases

    PRIDEi Q7A5Y5.

    Protocols and materials databases

    Structural Biology Knowledgebase Search...

    Genome annotation databases

    EnsemblBacteriai BAB42345 ; BAB42345 ; BAB42345 .
    GeneIDi 1123924.
    KEGGi sau:SA1093.
    PATRICi 19574406. VBIStaAur116463_1172.

    Phylogenomic databases

    eggNOGi COG0551.
    HOGENOMi HOG000004018.
    KOi K03168.
    OMAi VVECDKC.
    OrthoDBi EOG6S7XQ9.

    Enzyme and pathway databases

    BioCyci SAUR158879:GJCB-1153-MONOMER.

    Family and domain databases

    Gene3Di 1.10.460.10. 2 hits.
    2.70.20.10. 2 hits.
    3.40.50.140. 1 hit.
    HAMAPi MF_00952. Topoisom_1_prok.
    InterProi IPR000380. Topo_IA.
    IPR003601. Topo_IA_2.
    IPR023406. Topo_IA_AS.
    IPR013497. Topo_IA_cen.
    IPR013824. Topo_IA_cen_sub1.
    IPR013825. Topo_IA_cen_sub2.
    IPR023405. Topo_IA_core_domain.
    IPR003602. Topo_IA_DNA-bd.
    IPR013498. Topo_IA_Znf.
    IPR005733. TopoI_bac-type.
    IPR028612. Topoisom_1_IA.
    IPR006171. Toprim_domain.
    [Graphical view ]
    PANTHERi PTHR11390. PTHR11390. 1 hit.
    Pfami PF01131. Topoisom_bac. 1 hit.
    PF01751. Toprim. 1 hit.
    PF01396. zf-C4_Topoisom. 2 hits.
    [Graphical view ]
    PRINTSi PR00417. PRTPISMRASEI.
    SMARTi SM00437. TOP1Ac. 1 hit.
    SM00436. TOP1Bc. 1 hit.
    SM00493. TOPRIM. 1 hit.
    [Graphical view ]
    SUPFAMi SSF56712. SSF56712. 1 hit.
    TIGRFAMsi TIGR01051. topA_bact. 1 hit.
    PROSITEi PS00396. TOPOISOMERASE_I_PROK. 1 hit.
    PS50880. TOPRIM. 1 hit.
    [Graphical view ]
    ProtoNeti Search...

    Publicationsi

    1. Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
      Strain: N315.
    2. "Shotgun proteomic analysis of total and membrane protein extracts of S. aureus strain N315."
      Vaezzadeh A.R., Deshusses J., Lescuyer P., Hochstrasser D.F.
      Submitted (OCT-2007) to UniProtKB
      Cited for: IDENTIFICATION BY MASS SPECTROMETRY [LARGE SCALE ANALYSIS].
      Strain: N315.

    Entry informationi

    Entry nameiTOP1_STAAN
    AccessioniPrimary (citable) accession number: Q7A5Y5
    Entry historyi
    Integrated into UniProtKB/Swiss-Prot: May 1, 2007
    Last sequence update: July 5, 2004
    Last modified: October 1, 2014
    This is version 83 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. SIMILARITY comments
      Index of protein domains and families

    External Data

    Dasty 3