Results 71 to 80 of about 1,025,592 (331)

Loss of Cdc13 causes genome instability by a deficiency in replication-dependent telomere capping.

PLoS Genetics, 2020
In budding yeast, Cdc13, Stn1, and Ten1 form the telomere-binding heterotrimer CST complex. Here we investigate the role of Cdc13/CST in maintaining genome stability by using a Chr VII disome system that can generate recombinants, chromosome loss, and ...
Rachel E Langston, Dominic Palazzola, Erin Bonnell, Raymund J Wellinger, Ted Weinert   +4 more
doaj   +1 more source

DNA polymerase theta suppresses mitotic crossing over.

PLoS Genetics, 2021
Polymerase theta-mediated end joining (TMEJ) is a chromosome break repair pathway that is able to rescue the lethality associated with the loss of proteins involved in early steps in homologous recombination (e.g., BRCA1/2). This is due to the ability of
Juan Carvajal-Garcia, K Nicole Crown, Dale A Ramsden, Jeff Sekelsky   +3 more
doaj   +1 more source

Tumor clusters with divergent inflammation and human retroelement expression determine the clinical outcome of patients with serous ovarian cancer

Molecular Oncology, EarlyView.
Analysis of treatment‐naïve high‐grade serous ovarian carcinoma (HGSOC) and control tissues for ERVs, LINE‐1 (L1), inflammation, and immune checkpoints identified five clusters with diverse patient recurrence‐free survivals. An inflammation score was calculated and correlated with retroelement expression, where one novel cluster (Triple‐I) with high ...
Laura Glossner, Markus Eckstein, Christoph Mark, Matthias W. Beckmann, Arndt Hartmann, Pamela L. Strissel, Reiner Strick   +6 more
wiley   +1 more source

β‐TrCP overexpression enhances cisplatin sensitivity by depleting BRCA1

Molecular Oncology, EarlyView.
Low levels of β‐TrCP (Panel A) allow the accumulation of BRCA1 and CtIP, which facilitate the repair of cisplatin‐induced DNA damage via homologous recombination (HR) and promote tumor cell survival. In contrast, high β‐TrCP expression (Panel B) leads to BRCA1 and CtIP degradation, impairing HR repair, resulting in persistent DNA damage and apoptosis ...
Rocío Jiménez‐Guerrero, Alejandro Belmonte‐Fernández, Mónica González‐Moreno, Laura Rodríguez‐Cordero, Begoña Pérez‐Valderrama, Joaquín Herrero‐Ruíz, Francisco Romero, Carmen Sáez, Miguel Á. Japón   +8 more
wiley   +1 more source

Reducing MSH4 copy number prevents meiotic crossovers between non-homologous chromosomes in Brassica napus

Nature Communications, 2019
Non-homologous crossovers impair correct chromosome segregation in allopolyploids. Here the authors show that most non-homologous crossovers in Brassica napus arise from MSH4-dependent recombination and provide evidence that post-polyploidization ...
Adrián Gonzalo, Marie-Odile Lucas, Catherine Charpentier, Greta Sandmann, Andrew Lloyd, Eric Jenczewski   +5 more
doaj   +1 more source

Measuring Homologous Recombination Rates between Chromosomal Locations in Salmonella

Bio-Protocol, 2019
Homologous recombination between two similar DNA molecules, plays an important role in the repair of double-stranded DNA breaks. Recombination can occur between two sister chromosomes, or between two locations of similar sequence identity within the same
Gerrit Brandis, Sha Cao, Diarmaid Hughes   +2 more
doaj   +1 more source

CRA-1 uncovers a double-strand break-dependent pathway promoting the assembly of central region proteins on chromosome axes during C. elegans meiosis. [PDF]

PLoS Genetics, 2008
The synaptonemal complex (SC), a tripartite proteinaceous structure that forms between homologous chromosomes during meiosis, is crucial for faithful chromosome segregation.
Sarit Smolikov, Kristina Schild-Prüfert, Mónica P Colaiácovo   +2 more
doaj   +1 more source

Plasma extrachromosomal circular DNA as a biomarker in EGFR‐targeted therapy of non‐small cell lung cancer

Molecular Oncology, EarlyView.
Detection of extrachromosomal circular DNA (eccDNA) in plasma samples from EGFR‐mutated non‐small cell lung cancer patients. Plasma was collected before and during treatment with the EGFR‐tyrosine kinase inhibitor osimertinib. Plasma eccDNA was detected in all cancer samples, and the presence of the EGFR gene on eccDNA serves as a potential biomarker ...
Simone Stensgaard, Sarmad Mehmood, Eva Boysen Fynboe Ebert, Peter Meldgaard, Anindya Dutta, Boe S. Sorensen   +5 more
wiley   +1 more source

Preparation and characterization of renal cell peptides from fetal rats for their antitumor activity

FEBS Open Bio, EarlyView.
This study aimed to prepare renal cells (RCs) from fetal rats which were digested by enzymes. Candidate peptides RCPs were characterized by capillary HPLC and MS and their bioactivity was predicted using peptideranker. The predicted top 10 bioactive peptides were synthesized.
Zhe Zhang, Yuan Cao, Jing Du, Ying Zhang, Junxia Wang, Ying Yuan, Lianqing Sun   +6 more
wiley   +1 more source

Two‐way inhibition of PAX5 transcriptional activity by PAX5::CBFA2T3

FEBS Open Bio, EarlyView.
PAX5::CBFA2T3 (PAX5‐C) is a fusion protein of the B‐cell transcription factor, PAX5, and is found in B‐cell ALL. We propose a putative model of two‐way inhibition of PAX5 transcriptional activity by PAX5‐C. There are two ways of repression by PAX5‐C: DNA‐binding‐dependent way and HDAC‐dependent way, with either being sufficient for the repression. HDAC
Reina Ueno, Aki Terasaki, Yuiko Imai, Yuri Kimura, Yuna Kojima, Misa Irie, Koya Odaira, Mina Noura, Shuichi Okamoto, Takahiko Yasuda, Shinobu Tsuzuki, Hitoshi Kiyoi, Fumihiko Hayakawa   +12 more
wiley   +1 more source