Abstract
Double Holliday junctions (dHJS) are important intermediates of homologous recombination. The separate junctions can each be cleaved by DNA structure-selective endonucleases known as Holliday junction resolvases. Alternatively, double Holliday junctions can be processed by a reaction known as "double Holliday junction dissolution." This reaction requires the cooperative action ofaso-called "dissolvasome" comprisingaHolliday junction branch migration enzyme (Sgs1/BLM RecQ helicase) and a type IA topoisomerase (Top3/ TopoIIIa) in complex with its OB (oligonucleotide/oligosaccharide binding) fold containing accessory factor (Rmi1). This review details our current knowledge of the dissolution process and the players involved in catalyzing this mechanistically complex means of completing homologous recombination reactions.
| Original language | English |
|---|---|
| Article number | a016477 |
| Journal | Cold Spring Harbor perspectives in biology |
| Volume | 6 |
| Pages (from-to) | 1-16 |
| Number of pages | 16 |
| ISSN | 1943-0264 |
| DOIs | |
| Publication status | Published - 1 Jul 2014 |