Results 91 to 100 of about 27,662 (214)

Homologous recombination mutants cause differing lethality between h− and h+ Schizosaccharomyces pombe strains due to mat1 heterochromatin

The FEBS Journal, EarlyView.
Homologous recombination (HR) in Schizosaccharomyces pombe is essential when mating‐type switching–induced double‐strand breaks (DSBs) form at the mat1 locus. In h90 and h− strains, efficient mat1 DSB formation renders HR indispensable unless suppressors block these breaks.
Peter Kolesar, Siarhei Paliavoi, Barbora Stefanovie, Jan Josef Palecek   +3 more
wiley   +1 more source

RAD51 is a potential marker for prognosis and regulates cell proliferation in pancreatic cancer

Cancer Cell International, 2019
Background The DNA damage and repair pathway is considered a promising target for developing strategies against cancer. RAD51, also known as RECA, is a recombinase that performs the critical step in homologous recombination.
Xiaomeng Zhang, Ningyi Ma, Weiqiang Yao, Shuo Li, Zhigang Ren   +4 more
doaj   +1 more source

Compromised DNA replication in gut cells underlies sensitivity to genotoxic stress in the tardigrade Hypsibius exemplaris

The FEBS Journal, EarlyView.
DNA damage in the tardigrade Hypsibius exemplaris elicits distinct cellular outcomes depending on replication status. While non‐replicating cells tolerate genotoxic stress, constitutively replicating cells undergo irreversible replication failure upon DNA damage, leading to loss of tissue homeostasis, fat depletion, sterility, and organismal death ...
Gonzalo Quiroga‐Artigas, Pauline Fontanié, Benjamin Lacroix, Maria Dolores Molina, María Moriel‐Carretero   +4 more
wiley   +1 more source

Inhibition of RAD51 by siRNA and Resveratrol Sensitizes Cancer Stem Cells Derived from HeLa Cell Cultures to Apoptosis

Stem Cells International, 2018
Cervical cancer is the second most frequent tumor type in women worldwide with cases developing clinical recurrence, metastasis, and chemoresistance. The cancer stem cells (CSC) may be implicated in tumor resistance to therapy.
Graciela Ruíz, Heriberto A. Valencia-González, Ismael León-Galicia, Enrique García-Villa, Alejandro García-Carrancá, Patricio Gariglio   +5 more
doaj   +1 more source

Human APOBEC3G suppresses homologous recombination and LIG4‐independent end joining in DNA double‐strand break repair

The FEBS Journal, EarlyView.
Chromosomal DNA double‐strand breaks (DSBs) are repaired by homologous recombination and nonhomologous end joining (NHEJ). Recent work has additionally established theta‐mediated end‐joining (TMEJ) as a mechanism for DSB joining. Cells lacking NHEJ and TMEJ can repair DSBs in a homology‐dependent manner.
Shinta Saito, Miori Murayama, Usaki Arai, Sekifumi Akatsu, Ami Yamamoto, Misaki Kadoguchi, Noritaka Adachi   +6 more
wiley   +1 more source

The trimeric Shu complex in C. elegans is an ATPase that remodels RAD51 filaments in the homologous recombination‐associated DNA damage response

The FEBS Journal, EarlyView.
The C. elegans Shu complex (RFS‐1/RIP‐1/SWS‐1) is a DNA‐dependent ATPase that regulates RAD‐51 filaments during homologous recombination. The trimer preferentially binds 5′‐exposed DNA, remodels RAD‐51 filaments via ATP hydrolysis, and stabilizes filaments through ATP binding.
Sam Siu Hang Chu, Guangxin Xing, Kichang Paik, Anton Gartner, Hong Ling   +4 more
wiley   +1 more source

The human Shu complex promotes RAD51 activity by modulating RPA dynamics on ssDNA

Nature Communications
Templated DNA repair that occurs during homologous recombination and replication stress relies on RAD51. RAD51 activity is positively regulated by BRCA2 and the RAD51 paralogs.
Sarah R. Hengel, Katherine G. Oppenheimer, Chelsea M. Smith, Matthew A. Schaich, Hayley L. Rein, Julieta Martino, Kristie E. Darrah, Maggie Witham, Oluchi C. Ezekwenna, Kyle R. Burton, Bennett Van Houten, Maria Spies, Kara A. Bernstein   +12 more
doaj   +1 more source

Coupling of both a transactivation module and a double‐stranded DNA‐binding domain boosts Cas12i3 variant‐based cytosine and adenine editing in plants

Journal of Integrative Plant Biology, EarlyView.
Fusions of a transactivation module and a double‐stranded DNA‐binding domain produced effective Cas12i3 variant‐based cytosine and adenine base editors, with improved C‐to‐T and A‐to‐G base editing efficiency and expanded editing window. Generated herbicide‐resistant rice germplasm by using these base editors demonstrates their potential for precise ...
Chen Zhang, Jingying Li, Yucai Li, Lei Yan, Christina Seok Yien Yong, Shaoya Li, Yubing He, Lanqin Xia   +7 more
wiley   +1 more source

ATXR5 and ATXR6 restrict meiotic crossover formation within heterochromatin in Arabidopsis

Journal of Integrative Plant Biology, EarlyView.
The Arabidopsis H3K27 mono‐methyltransferases ATXR5 and ATXR6 repress crossovers within meiotic heterochromatin, are required for heterochromatin condensation and H3K27me1 establishment, and specifically influence the maintenance of DNA methylation in meiocytes.
Jun Zhang, Yue Yu, Han Wang, Meiling Li, Dingning Li, Chenjiang You, Yingxiang Wang, Cong Wang   +7 more
wiley   +1 more source

RAD51 and RAD51 paralog inhibition sensitizes nonreplicating quiescent keratinocytes to UV radiation

Photochemistry and Photobiology, EarlyView.
UV radiation and other compounds generate DNA adducts that block transcription and induce cell death if not removed by the nucleotide excision repair system. In this work, we used a small‐scale pharmacological screen to discover that inhibition of the recombinase RAD51 sensitized nonreplicating quiescent keratinocytes to both UVR and other agents that ...
Saman Khan, Angitha Nair, M. Alexandra Carpenter, Michael G. Kemp   +3 more
wiley   +1 more source