HAMAP rule MF_00322
General rule information
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| PURL | https://purl.expasy.org/hamap/rule/MF_00322 |
| Accession | MF_00322 |
| Dates | 28-FEB-2005 (Created)
14-JAN-2025 (Last updated, Version 27) |
| Name | Top6B |
| Scope(s) |
Archaea Bacteria |
| Template(s) | O05207; Q8PUB8; [ Recover all ] |
| Triggered by |
case c? <OC:Bacteria> or <OC:Archaea>
HAMAP; MF_00322 (Get profile general information and statistics) end case
|
Propagated annotation
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Identifier, protein and gene names
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| Identifier | TOP6B |
| Protein name | RecName: Full=Type 2 DNA topoisomerase 6 subunit B; EC=5.6.2.2; AltName: Full=Type II DNA topoisomerase VI subunit B; Short=TopoVI-B; |
| Gene name | Name=top6B; |
Comments
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| FUNCTION | Relaxes both positive and negative superturns and exhibits a strong decatenase activity. |
| CATALYTIC ACTIVITY | Reaction=ATP-dependent breakage, passage and rejoining of double- stranded DNA.; EC=5.6.2.2; |
| SUBUNIT | Homodimer. Heterotetramer of two Top6A and two Top6B chains. |
| SIMILARITY | Belongs to the TOP6B family. |
Keywords
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Gene Ontology
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| GO:0005524; Molecular function:ATP binding |
| GO:0003677; Molecular function:DNA binding |
| GO:0003918; Molecular function:DNA topoisomerase type II (double strand cut, ATP-hydrolyzing) activity |
| GO:0006265; Biological process:DNA topological change |
| GO:0006260; Biological process:DNA replication |
Cross-references
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| Pfam | PF02518; HATPase_c; 1; |
| Pfam | PF09239; Topo-VIb_trans; 1; |
| NCBIfam | TIGR01052; top6b; 1; |
| PIRSF | PIRSF006553; TopoVI_B; 1; |
Features
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| From: TOP6B_SACSH (O05207) | ||||||||||||
| Key | From | To | Description | Tag | Condition | FTGroup | ||||||
| BINDING | 97 | 98 | /ligand="ATP" /ligand_id="ChEBI:CHEBI:30616" |
[ST]-[KR] | ||||||||
| BINDING | 106 | 113 | /ligand="ATP" /ligand_id="ChEBI:CHEBI:30616" |
G-x-x-G-[LIV]-G-x-[KSA] | ||||||||
| BINDING | 42 | 42 | /ligand="ATP" /ligand_id="ChEBI:CHEBI:30616" |
N | ||||||||
| BINDING | 76 | 76 | /ligand="ATP" /ligand_id="ChEBI:CHEBI:30616" |
D | ||||||||
| BINDING | 427 | 427 | /ligand="ATP" /ligand_id="ChEBI:CHEBI:30616" |
K | ||||||||
Additional information
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| Size range | 475-842 amino acids |
| Related rules |
None |
| Fusion | Nter: None Cter: None |