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UniProtKB - O05207 (TOP6B_SACSH)

Entry version 119 (02 Jun 2021)
Sequence version 1 (01 Jul 1997)
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Protein

Type 2 DNA topoisomerase 6 subunit B

Gene

top6B

Organism
Saccharolobus shibatae (Sulfolobus shibatae)
Status
Reviewed-Annotation score:

Annotation score:5 out of 5

<p>The annotation score provides a heuristic measure of the annotation content of a UniProtKB entry or proteome. This score <strong>cannot</strong> be used as a measure of the accuracy of the annotation as we cannot define the 'correct annotation' for any given protein.<p><a href='/help/annotation_score' target='_top'>More...</a></p>-Experimental evidence at protein leveli <p>This indicates the type of evidence that supports the existence of the protein. Note that the 'protein existence' evidence does not give information on the accuracy or correctness of the sequence(s) displayed.<p><a href='/help/protein_existence' target='_top'>More...</a></p>

<p>This section provides any useful information about the protein, mostly biological knowledge.<p><a href='/help/function_section' target='_top'>More...</a></p>Functioni

Relaxes both positive and negative supercoils and exhibits a strong decatenase and unknotting activity; it cannot introduce DNA supercoils (PubMed:7961685).

ATP is absolutely required for DNA cleavage; the nonhydrolyzable analog AMP-PNP generates nicked or linear products from a supercoiled dsDNA substrate. Generates staggered two-nucleotide long 5' overhangs. The enzyme is covalently attached transiently to the 5'-ends of the cleaved strands (PubMed:11485995).

2 Publications

<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">Function</a> section describes the catalytic activity of an enzyme, i.e. a chemical reaction that the enzyme catalyzes.<p><a href='/help/catalytic_activity' target='_top'>More...</a></p>Catalytic activityi

  • ATP-dependent breakage, passage and rejoining of double-stranded DNA.UniRule annotation1 Publication EC:5.6.2.2

<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">Function</a> section describes regulatory mechanisms for enzymes, transporters or microbial transcription factors, and reports the components which regulate (by activation or inhibition) the reaction.<p><a href='/help/activity_regulation' target='_top'>More...</a></p>Activity regulationi

Not inhibited by the DNA gyrase inhibitor novobiocin, instead inhibited by eukaryotic topoisomerase inhibitors such as m- and o-amsacrine, ellipticine, and the quinolone CP-115,953 (PubMed:7961685). Radicicol inhibits the ATPase activity (PubMed:16920739).2 Publications

<p>This subsection of the 'Function' section describes biophysical and chemical properties, such as maximal absorption, kinetic parameters, pH dependence, redox potentials and temperature dependence.<p><a href='/help/biophysicochemical_properties' target='_top'>More...</a></p>Temperature dependencei

Optimum temperature is 70-80 degrees Celsius.1 Publication

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">Function</a> section describes the interaction between a single amino acid and another chemical entity. Priority is given to the annotation of physiological ligands.<p><a href='/help/binding' target='_top'>More...</a></p>Binding sitei42ATPCombined sources2 Publications1
Binding sitei76ATPCombined sources2 Publications1
Binding sitei427ATPCombined sources1 Publication1

Regions

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">Function</a> section describes a region in the protein which binds nucleotide phosphates. It always involves more than one amino acid and includes all residues involved in nucleotide-binding.<p><a href='/help/np_bind' target='_top'>More...</a></p>Nucleotide bindingi96 – 98ATPCombined sources2 Publications3
Nucleotide bindingi107 – 113ATPCombined sources2 Publications7

<p>The <a href="http://www.geneontology.org/">Gene Ontology (GO)</a> project provides a set of hierarchical controlled vocabulary split into 3 categories:<p><a href='/help/gene_ontology' target='_top'>More...</a></p>GO - Molecular functioni

Complete GO annotation on QuickGO ...

GO - Biological processi

Complete GO annotation on QuickGO ...

<p>UniProtKB Keywords constitute a <a href="http://www.uniprot.org/keywords">controlled vocabulary</a> with a hierarchical structure. Keywords summarise the content of a UniProtKB entry and facilitate the search for proteins of interest.<p><a href='/help/keywords' target='_top'>More...</a></p>Keywordsi

Molecular functionDNA-binding, Isomerase, Topoisomerase
LigandATP-binding, Nucleotide-binding

Enzyme and pathway databases

BRENDA Comprehensive Enzyme Information System

More...BRENDAi		5.6.2.2, 6162

<p>This section provides information about the protein and gene name(s) and synonym(s) and about the organism that is the source of the protein sequence.<p><a href='/help/names_and_taxonomy_section' target='_top'>More...</a></p>Names & Taxonomyi

<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section provides an exhaustive list of all names of the protein, from commonly used to obsolete, to allow unambiguous identification of a protein.<p><a href='/help/protein_names' target='_top'>More...</a></p>Protein namesi
Recommended name:
Type 2 DNA topoisomerase 6 subunit BUniRule annotation (EC:5.6.2.2UniRule annotation1 Publication)
Alternative name(s):
Type II DNA topoisomerase VI subunit BUniRule annotation
Short name:
TopoVI-BUniRule annotation
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section indicates the name(s) of the gene(s) that code for the protein sequence(s) described in the entry. Four distinct tokens exist: 'Name', 'Synonyms', 'Ordered locus names' and 'ORF names'.<p><a href='/help/gene_name' target='_top'>More...</a></p>Gene namesi
Name:top6BUniRule annotation
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section provides information on the name(s) of the organism that is the source of the protein sequence.<p><a href='/help/organism-name' target='_top'>More...</a></p>OrganismiSaccharolobus shibatae (Sulfolobus shibatae)
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section shows the unique identifier assigned by the NCBI to the source organism of the protein. This is known as the 'taxonomic identifier' or 'taxid'.<p><a href='/help/taxonomic_identifier' target='_top'>More...</a></p>Taxonomic identifieri2286 [NCBI]
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section contains the taxonomic hierarchical classification lineage of the source organism. It lists the nodes as they appear top-down in the taxonomic tree, with the more general grouping listed first.<p><a href='/help/taxonomic_lineage' target='_top'>More...</a></p>Taxonomic lineageiArchaea › Crenarchaeota › Thermoprotei › Sulfolobales › Sulfolobaceae › Saccharolobus

<p>This section provides information on the location and the topology of the mature protein in the cell.<p><a href='/help/subcellular_location_section' target='_top'>More...</a></p>Subcellular locationi

<p>This section describes post-translational modifications (PTMs) and/or processing events.<p><a href='/help/ptm_processing_section' target='_top'>More...</a></p>PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'PTM / Processing' section describes the extent of a polypeptide chain in the mature protein following processing or proteolytic cleavage.<p><a href='/help/chain' target='_top'>More...</a></p>ChainiPRO_00001454701 – 530Type 2 DNA topoisomerase 6 subunit BAdd BLAST530

<p>This section provides information on the quaternary structure of a protein and on interaction(s) with other proteins or protein complexes.<p><a href='/help/interaction_section' target='_top'>More...</a></p>Interactioni

<p>This subsection of the <a href="http://www.uniprot.org/help/interaction%5Fsection">'Interaction'</a> section provides information about the protein quaternary structure and interaction(s) with other proteins or protein complexes (with the exception of physiological receptor-ligand interactions which are annotated in the <a href="http://www.uniprot.org/help/function%5Fsection">'Function'</a> section).<p><a href='/help/subunit_structure' target='_top'>More...</a></p>Subunit structurei

Homodimer. Heterotetramer of two Top6A and two Top6B chains.

UniRule annotation6 Publications

<p>This subsection of the '<a href="http://www.uniprot.org/help/interaction%5Fsection">Interaction</a>' section provides information about binary protein-protein interactions. The data presented in this section are a quality-filtered subset of binary interactions automatically derived from the <a href="https://www.ebi.ac.uk/intact/">IntAct database</a>. It is updated at every <a href="http://www.uniprot.org/help/synchronization">UniProt release</a>.<p><a href='/help/binary_interactions' target='_top'>More...</a></p>Binary interactionsi

Hide details

GO - Molecular functioni

Complete GO annotation on QuickGO ...

Protein-protein interaction databases

Database of interacting proteins

More...DIPi		DIP-29416N

Protein interaction database and analysis system

More...IntActi		O05207, 1 interactor

<p>This section provides information on the tertiary and secondary structure of a protein.<p><a href='/help/structure_section' target='_top'>More...</a></p>Structurei

Secondary structure

1530
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details

3D structure databases

SWISS-MODEL Repository - a database of annotated 3D protein structure models

More...SMRi		O05207

Database of comparative protein structure models

More...ModBasei		Search...

Protein Data Bank in Europe - Knowledge Base

More...PDBe-KBi		Search...

Miscellaneous databases

Relative evolutionary importance of amino acids within a protein sequence

More...EvolutionaryTracei		O05207

<p>This section provides information on sequence similarities with other proteins and the domain(s) present in a protein.<p><a href='/help/family_and_domains_section' target='_top'>More...</a></p>Family & Domainsi

<p>This subsection of the 'Family and domains' section provides information about the sequence similarity with other proteins.<p><a href='/help/sequence_similarities' target='_top'>More...</a></p>Sequence similaritiesi

Belongs to the TOP6B family.UniRule annotation

Family and domain databases

Conserved Domains Database

More...CDDi		cd00823, TopoIIB_Trans, 1 hit

Gene3D Structural and Functional Annotation of Protein Families

More...Gene3Di		3.30.230.10, 1 hit
3.30.565.10, 1 hit

HAMAP database of protein families

More...HAMAPi		MF_00322, Top6B, 1 hit

Integrated resource of protein families, domains and functional sites

More...InterProi		View protein in InterPro
IPR003594, HATPase_C
IPR036890, HATPase_C_sf
IPR010979, Ribosomal_S13-like_H2TH
IPR020568, Ribosomal_S5_D2-typ_fold
IPR014721, Ribosomal_S5_D2-typ_fold_subgr
IPR005734, TopoVI_B
IPR015320, TopoVI_B_transducer

The PANTHER Classification System

More...PANTHERi		PTHR10871:SF4, PTHR10871:SF4, 1 hit

Pfam protein domain database

More...Pfami		View protein in Pfam
PF02518, HATPase_c, 1 hit
PF09239, Topo-VIb_trans, 1 hit

PIRSF; a whole-protein classification database

More...PIRSFi		PIRSF006553, TopoVI_B, 1 hit

Simple Modular Architecture Research Tool; a protein domain database

More...SMARTi		View protein in SMART
SM00387, HATPase_c, 1 hit

Superfamily database of structural and functional annotation

More...SUPFAMi		SSF46946, SSF46946, 1 hit
SSF54211, SSF54211, 1 hit
SSF55874, SSF55874, 1 hit

TIGRFAMs; a protein family database

More...TIGRFAMsi		TIGR01052, top6b, 1 hit

<p>This section displays by default the canonical protein sequence and upon request all isoforms described in the entry. It also includes information pertinent to the sequence(s), including <a href="http://www.uniprot.org/help/sequence%5Flength">length</a> and <a href="http://www.uniprot.org/help/sequences">molecular weight</a>. The information is filed in different subsections. The current subsections and their content are listed below:<p><a href='/help/sequences_section' target='_top'>More...</a></p>Sequencei

<p>This subsection of the <a href="http://www.uniprot.org/help/sequences%5Fsection">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical%5Fand%5Fisoforms">canonical sequence</a> displayed by default in the entry is complete or not.<p><a href='/help/sequence_status' target='_top'>More...</a></p>Sequence statusi: Complete.

O05207-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MSAKEKFTSL SPAEFFKRNP ELAGFPNPAR ALYQTVRELI ENSLDATDVH 
        60         70         80         90        100
GILPNIKITI DLIDDARQIY KVNVVDNGIG IPPQEVPNAF GRVLYSSKYV 
       110        120        130        140        150
NRQTRGMYGL GVKAAVLYSQ MHQDKPIEIE TSPVNSKRIY TFKLKIDINK 
       160        170        180        190        200
NEPIIVERGS VENTRGFHGT SVAISIPGDW PKAKSRIYEY IKRTYIITPY 
       210        220        230        240        250
AEFIFKDPEG NVTYYPRLTN KIPKPPQEVK PHPYGVDREE IKILINNLKR 
       260        270        280        290        300
DYTIKEFLVN EFQSIGDTTA DKILELAGLK PNKKVKNLTE EEITRLVETF 
       310        320        330        340        350
KKDEDFRSPS ADSLSVIGED LIELGLKKIF NPDFAASITR KPKAYQGHPF 
       360        370        380        390        400
IVEAGVAFGG SIPVGEEPIV LRYANKIPLI YDEKSDVIWK VVEELDWKRY 
       410        420        430        440        450
GIESDQYQMV VMVHLCSTKI PYKSAGKESI AEVENIEKEI KNALMEVARK 
       460        470        480        490        500
LKQYLSEKRK EQEAKKKLLA YLKYIPEVSR SLATFLASGN KELVSKYQNE 
       510        520        530
ISEGLFKLIS KKLDLINIEE YRKVYRVDSE
Length:530
Mass (Da):60,528
Last modified:July 1, 1997 - v1
<p>The checksum is a form of redundancy check that is calculated from the sequence. It is useful for tracking sequence updates.</p> <p>It should be noted that while, in theory, two different sequences could have the same checksum value, the likelihood that this would happen is extremely low.</p> <p>However UniProtKB may contain entries with identical sequences in case of multiple genes (paralogs).</p> <p>The checksum is computed as the sequence 64-bit Cyclic Redundancy Check value (CRC64) using the generator polynomial: x<sup>64</sup> + x<sup>4</sup> + x<sup>3</sup> + x + 1. The algorithm is described in the ISO 3309 standard. </p> <p class="publication">Press W.H., Flannery B.P., Teukolsky S.A. and Vetterling W.T.<br /> <strong>Cyclic redundancy and other checksums</strong><br /> <a href="http://www.nrbook.com/b/bookcpdf.php">Numerical recipes in C 2nd ed., pp896-902, Cambridge University Press (1993)</a>)</p> Checksum:i772F221FCD28441A
GO

Sequence databases

Select the link destinations:

EMBL nucleotide sequence database

More...EMBLi

GenBank nucleotide sequence database

More...GenBanki

DNA Data Bank of Japan; a nucleotide sequence database

More...DDBJi
Links Updated
Y10582 Genomic DNA Translation: CAA71604.1

<p>This section provides links to proteins that are similar to the protein sequence(s) described in this entry at different levels of sequence identity thresholds (100%, 90% and 50%) based on their membership in UniProt Reference Clusters (<a href="http://www.uniprot.org/help/uniref">UniRef</a>).<p><a href='/help/similar_proteins_section' target='_top'>More...</a></p>Similar proteinsi

<p>This section is used to point to information related to entries and found in data collections other than UniProtKB.<p><a href='/help/cross_references_section' target='_top'>More...</a></p>Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
Y10582 Genomic DNA Translation: CAA71604.1

3D structure databases

Select the link destinations:

Protein Data Bank Europe

More...PDBei

Protein Data Bank RCSB

More...RCSB PDBi

Protein Data Bank Japan

More...PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
1MU5X-ray2.00A2-470[»]
1MX0X-ray2.30A/B/C/D/E/F1-470[»]
1Z59X-ray2.10A2-470[»]
1Z5AX-ray2.20A/B2-470[»]
1Z5BX-ray2.00A/B2-470[»]
1Z5CX-ray2.20A/B2-470[»]
2HKJX-ray2.00A2-470[»]
2ZBKX-ray3.56B/D/F/H1-530[»]
SMRiO05207
ModBaseiSearch...
PDBe-KBiSearch...

Protein-protein interaction databases

DIPiDIP-29416N
IntActiO05207, 1 interactor

Enzyme and pathway databases

BRENDAi5.6.2.2, 6162

Miscellaneous databases

EvolutionaryTraceiO05207

Family and domain databases

CDDicd00823, TopoIIB_Trans, 1 hit
Gene3Di3.30.230.10, 1 hit
3.30.565.10, 1 hit
HAMAPiMF_00322, Top6B, 1 hit
InterProiView protein in InterPro
IPR003594, HATPase_C
IPR036890, HATPase_C_sf
IPR010979, Ribosomal_S13-like_H2TH
IPR020568, Ribosomal_S5_D2-typ_fold
IPR014721, Ribosomal_S5_D2-typ_fold_subgr
IPR005734, TopoVI_B
IPR015320, TopoVI_B_transducer
PANTHERiPTHR10871:SF4, PTHR10871:SF4, 1 hit
PfamiView protein in Pfam
PF02518, HATPase_c, 1 hit
PF09239, Topo-VIb_trans, 1 hit
PIRSFiPIRSF006553, TopoVI_B, 1 hit
SMARTiView protein in SMART
SM00387, HATPase_c, 1 hit
SUPFAMiSSF46946, SSF46946, 1 hit
SSF54211, SSF54211, 1 hit
SSF55874, SSF55874, 1 hit
TIGRFAMsiTIGR01052, top6b, 1 hit

MobiDB: a database of protein disorder and mobility annotations

More...MobiDBi		Search...

<p>This section provides general information on the entry.<p><a href='/help/entry_information_section' target='_top'>More...</a></p>Entry informationi

<p>This subsection of the 'Entry information' section provides a mnemonic identifier for a UniProtKB entry, but it is not a stable identifier. Each reviewed entry is assigned a unique entry name upon integration into UniProtKB/Swiss-Prot.<p><a href='/help/entry_name' target='_top'>More...</a></p>Entry nameiTOP6B_SACSH
<p>This subsection of the 'Entry information' section provides one or more accession number(s). These are stable identifiers and should be used to cite UniProtKB entries. Upon integration into UniProtKB, each entry is assigned a unique accession number, which is called 'Primary (citable) accession number'.<p><a href='/help/accession_numbers' target='_top'>More...</a></p>AccessioniPrimary (citable) accession number: O05207
<p>This subsection of the 'Entry information' section shows the date of integration of the entry into UniProtKB, the date of the last sequence update and the date of the last annotation modification ('Last modified'). The version number for both the entry and the <a href="http://www.uniprot.org/help/canonical%5Fand%5Fisoforms">canonical sequence</a> are also displayed.<p><a href='/help/entry_history' target='_top'>More...</a></p>Entry historyiIntegrated into UniProtKB/Swiss-Prot: July 15, 1998
Last sequence update: July 1, 1997
Last modified: June 2, 2021
This is version 119 of the entry and version 1 of the sequence. See complete history.
<p>This subsection of the 'Entry information' section indicates whether the entry has been manually annotated and reviewed by UniProtKB curators or not, in other words, if the entry belongs to the Swiss-Prot section of UniProtKB (<strong>reviewed</strong>) or to the computer-annotated TrEMBL section (<strong>unreviewed</strong>).<p><a href='/help/entry_status' target='_top'>More...</a></p>Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

<p>This section contains any relevant information that doesn't fit in any other defined sections<p><a href='/help/miscellaneous_section' target='_top'>More...</a></p>Miscellaneousi

Keywords - Technical termi

3D-structure, Direct protein sequencing

Documents

  1. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references
  2. SIMILARITY comments
    Index of protein domains and families
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