Results 51 to 60 of about 693,481 (331)

Mutations that Separate the Functions of the Proofreading Subunit of the Escherichia coli Replicase

, 2015
The dnaQ gene of Escherichia coli encodes the Ɛ subunit of DNA polymerase III, which provides the 3\u27 - 5\u27 exonuclease proofreading activity of the replicative polymerase.
Kreuzer, Kenneth N., Whatley, Zakiya
core   +1 more source

Structure and Function of a Mycobacterial NHEJ DNA Repair Polymerase [PDF]

, 2006
Non homologous end-joining (NHEJ)-mediated repair of DNA double-strand breaks in prokaryotes requires Ku and a specific multidomain DNA ligase (LigD).
Aidan J. Doherty, Angel J. Picher, Arezi, Augustin, Bowater, Chen, Chen, Critchlow, Daley, Darren Thompson, DeFazio, Della, Dominguez, Emsley, Garcia-Diaz, Gavin C. Fox, Gong, Gong, Ito, Iyer, Jones, Krejci, La Fortelle, Lao-Sirieix, Lao-Sirieix, Lipps, Luis Blanco, Ma, Ma, Mahajan, Matsumoto, McCoy, Murshudov, Nick McElhinney, Nick McElhinny, Nick McElhinny, Nigel C. Brissett, Paula Andrade, Paull, Picher, Pitcher, Pitcher, Potterton, Potterton, Powell, Prasad, Ramsden, Raquel Juarez, Robert S. Pitcher, Ruiz, Rydberg, Singhal, Steitz, Tseng, Weller, Wilson, Winn, Wu, Zhang, Zhu   +59 more
core   +1 more source

Reciprocal control of viral infection and phosphoinositide dynamics

FEBS Letters, EarlyView.
Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley   +1 more source

The Rise and Fall of Billionaire siRNAs during Reproductive Development in Rice

Plants, 2022
RNA polymerase IV-dependent siRNAs, usually 24 nt in length, function in the RNA-directed DNA methylation that is responsible for de novo methylation in plants.
Lili Wang, Dachao Xu, Longjun Zeng, Dong-Lei Yang   +3 more
doaj   +1 more source

An siRNA-guided ARGONAUTE protein directs RNA polymerase V to initiate DNA methylation

Nature Plants, 2021
In mammals and plants, cytosine DNA methylation is essential for the epigenetic repression of transposable elements and foreign DNA. In plants, DNA methylation is guided by small interfering RNAs (siRNAs) in a self-reinforcing cycle termed RNA-directed ...
Meredith J. Sigman, Kaushik Panda, Rachel Kirchner, Lauren L. McLain, Hayden A Payne, John Reddy Peasari, Aman Y. Husbands, R. K. Slotkin, Andrea D. McCue   +8 more
semanticscholar   +1 more source

DNA 3 '-Phosphatase Activity Is Critical for Rapid Global Rates of Single-Strand Break Repair following Oxidative Stress [PDF]

, 2009
Oxidative stress is a major source of chromosome single-strand breaks (SSBs), and the repair of these lesions is retarded in neurodegenerative disease. The rate of the repair of oxidative SSBs is accelerated by XRCC1, a scaffold protein that is essential
Breslin, Claire, Caldecott, Keith W
core   +2 more sources

CCT4 promotes tunneling nanotube formation

FEBS Letters, EarlyView.
Tunneling nanotubes (TNTs) are membranous tunnel‐like structures that transport molecules and organelles between cells. They vary in thickness, and thick nanotubes often contain microtubules in addition to actin fibers. We found that cells expressing monomeric CCT4 generate many thick TNTs with tubulin.
Miyu Enomoto, Akiko Asada, Taro Saito, Kanae Ando   +3 more
wiley   +1 more source

A simple and economical site-directed mutagenesis method for large plasmids by direct transformation of two overlapping PCR fragments

BioTechniques, 2022
Despite the development of various methods and commercial kits, site-directed mutagenesis of large plasmids remains a challenge in many laboratories.
Zhibo Yang, Zan Chen, Yueping Zhang
doaj   +1 more source

A Genomic Point Mutation in the Extracellular Domain of the Thyrotropin Receptor in Patients with Graves’ Ophthalmopathy [PDF]

, 1994
Orbital and pretibial fibroblasts are targets of autoimmune attack in Graves' ophthalmopathy (GO) and pretibial dermopathy (PTD). The fibroblast autoantigen involved in these peripheral manifestations of Graves' disease and the reason for the association
Bahn, Rebecca S., Dutton, Charyl M., Heufelder, Armin E., Sarkar, Gobinda   +3 more
core   +1 more source

The zinc finger domains of PARP‐1 are selectively and potently inhibited by the Au(I)‐based drugs sodium aurothiomalate and aurothioglucose

FEBS Letters, EarlyView.
PARP‐1 is a key enzyme in the DNA damage response, and its inhibition induces cancer cell death via synthetic lethality. Au(I)‐based drugs, such as aurothioglucose and sodium aurothiomalate, block PARP‐1's DNA‐dependent activity by targeting its zinc finger domains.
Uliana Bashtanova, Melinda Jane Duer
wiley   +1 more source