Unknown

Dataset Information

0

Sws1 is a conserved regulator of homologous recombination in eukaryotic cells.


ABSTRACT: Rad52-dependent homologous recombination (HR) is regulated by the antirecombinase activities of Srs2 and Rqh1/Sgs1 DNA helicases in fission yeast and budding yeast. Functional analysis of Srs2 in Schizosaccharomyces pombe led us to the discovery of Sws1, a novel HR protein with a SWIM-type Zn finger. Inactivation of Sws1 suppresses the genotoxic sensitivity of srs2Delta and rqh1Delta mutants and rescues the inviability of srs2Delta rqh1Delta cells. Sws1 functions at an early step of recombination in a pro-recombinogenic complex with Rlp1 and Rdl1, two RecA-like proteins that are most closely related to the human Rad51 paralogs XRCC2 and RAD51D, respectively. This finding indicates that the XRCC2-RAD51D complex is conserved in lower eukaryotes. A SWS1 homolog exists in human cells. It associates with RAD51D and ablating its expression reduces the number of RAD51 foci. These studies unveil a conserved pathway for the initiation and control of HR in eukaryotic cells.

SUBMITTER: Martin V 

PROVIDER: S-EPMC1478202 | biostudies-literature | 2006 Jun

REPOSITORIES: biostudies-literature

altmetric image

Publications

Sws1 is a conserved regulator of homologous recombination in eukaryotic cells.

Martín Victoria V   Chahwan Charly C   Gao Hui H   Blais Véronique V   Wohlschlegel James J   Yates John R JR   McGowan Clare H CH   Russell Paul P  

The EMBO journal 20060518 11


Rad52-dependent homologous recombination (HR) is regulated by the antirecombinase activities of Srs2 and Rqh1/Sgs1 DNA helicases in fission yeast and budding yeast. Functional analysis of Srs2 in Schizosaccharomyces pombe led us to the discovery of Sws1, a novel HR protein with a SWIM-type Zn finger. Inactivation of Sws1 suppresses the genotoxic sensitivity of srs2Delta and rqh1Delta mutants and rescues the inviability of srs2Delta rqh1Delta cells. Sws1 functions at an early step of recombinatio  ...[more]

Similar Datasets

| S-EPMC8275761 | biostudies-literature
| S-EPMC6536703 | biostudies-literature
| S-EPMC6180034 | biostudies-literature
| S-EPMC137963 | biostudies-literature
| S-EPMC5897033 | biostudies-literature
| S-EPMC6155239 | biostudies-literature
| S-EPMC6093641 | biostudies-literature
| S-EPMC5622368 | biostudies-literature
| S-EPMC3797097 | biostudies-literature
| S-EPMC5344794 | biostudies-literature