Results 81 to 90 of about 1,866,190 (292)

An upstream open reading frame regulates expression of the mitochondrial protein Slm35 and mitophagy flux

FEBS Letters, EarlyView.
This study reveals how the mitochondrial protein Slm35 is regulated in Saccharomyces cerevisiae. The authors identify stress‐responsive DNA elements and two upstream open reading frames (uORFs) in the 5′ untranslated region of SLM35. One uORF restricts translation, and its mutation increases Slm35 protein levels and mitophagy.
Hernán Romo‐Casanueva, Ariann E. Mendoza‐Martínez, P. Abril Medina‐Flores, Carlos Campero‐Basaldua, Alexander DeLuna, Soledad Funes   +5 more
wiley   +1 more source

Reduced plastid genomes of colorless facultative pathogens Prototheca (Chlorophyta) are retained for membrane transport genes

BMC Biology
Background Plastids are usually involved in photosynthesis, but the secondary loss of this function is a widespread phenomenon in various lineages of algae and plants.
Kacper Maciszewski, Gabriela Wilga, Tomasz Jagielski, Zofia Bakuła, Jan Gawor, Robert Gromadka, Anna Karnkowska   +6 more
doaj   +1 more source

Breast Cancer Proteins PALB2 and BRCA2 Stimulate Polymerase η in Recombination-Associated DNA Synthesis at Blocked Replication Forks

Cell Reports, 2014
One envisioned function of homologous recombination (HR) is to find a template for DNA synthesis from the resected 3′-OH molecules that occur during double-strand break (DSB) repair at collapsed replication forks.
Rémi Buisson, Joshi Niraj, Joris Pauty, Ranjan Maity, Weixing Zhao, Yan Coulombe, Patrick Sung, Jean-Yves Masson   +7 more
doaj   +1 more source

Enhancement of DNA synthesis of mouse myelogenous cells by cyclic adenosine 3',5'-monophosphate (cAMP) [PDF]

, 1974
To observe the possible role of cAMP on the DNA synthesis during specialization-division of myelogenous precursor cells, the authors observed the DNA and RNA synthesis of the cells by in vitro autoradiography.
Awai, Michiyasu, Naito, Mitsuko, Okada, Shigeru, Okamoto, Atsuko, Seno, Satimaru   +4 more
core   +1 more source

Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions

FEBS Letters, EarlyView.
We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva, Puspa Kunwar, Md Ibnul Rifat Rahman, Joanna Koryo Kwao, Nathan Lehman, Zihan Zhang, Trenton Paul, Claire Cheng, Nicholas Truex, Hui‐Ting Lee, Jun Zhang   +10 more
wiley   +1 more source

PrimPol is required for replicative tolerance of G quadruplexes in vertebrate cells [PDF]

, 2016
G quadruplexes (G4s) can present potent blocks to DNA replication. Accurate and timely replication of G4s in vertebrates requires multiple specialized DNA helicases and polymerases to prevent genetic and epigenetic instability.
Bailey, Laura J, Doherty, Aidan J, Guilbaud, Guillaume, Guilliam, Thomas A, Jozwiakowski, Stanislaw K, Romanello, Marina, Sale, Julian E, Schiavone, Davide   +7 more
core   +1 more source

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

FEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li, Pedro A. Sánchez‐Murcia, Bernd Nidetzky   +2 more
wiley   +1 more source

Complete mitochondrial genomes of the Prototheca genus: comparative genomics and evolutionary insights

BMC Genomics
Background Prototheca (Chlorophyta: Trebouxiophyceae) is a genus of non-photosynthetic microalgae that causes increasingly frequent infections in both humans and animals, collectively referred to as protothecosis The genetic landscape of the Prototheca ...
Daniel Wibberg, Zofia Bakuła, Iván García-Cunchillos, Jan Gawor, Robert Gromadka, Anna Karnkowska, Jacek Bielecki, Tomasz Jagielski   +7 more
doaj   +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

The DNA replication factor RFC1 is required for interference-sensitive meiotic crossovers in Arabidopsis thaliana.

PLoS Genetics, 2012
During meiotic recombination, induced double-strand breaks (DSBs) are processed into crossovers (COs) and non-COs (NCO); the former are required for proper chromosome segregation and fertility.
Yingxiang Wang, Zhihao Cheng, Jiyue Huang, Qian Shi, Yue Hong, Gregory P Copenhaver, Zhizhong Gong, Hong Ma   +7 more
doaj   +1 more source