Results 51 to 60 of about 1,048,189 (263)

Reconstitution of human DNA licensing and the structural and functional analysis of key intermediates

Nature Communications
Human DNA licensing initiates replication fork assembly and DNA replication. This reaction promotes the loading of the hMCM2-7 complex on DNA, which represents the core of the replicative helicase that unwinds DNA during S-phase.
Jennifer N. Wells, Lucy V. Edwardes, Vera Leber, Shenaz Allyjaun, Matthew Peach, Joshua Tomkins, Antonia Kefala-Stavridi, Sarah V. Faull, Ricardo Aramayo, Carolina M. Pestana, Lepakshi Ranjha, Christian Speck   +11 more
doaj   +1 more source

Ctf4 organizes sister replisomes and Pol α into a replication factory

eLife, 2019
The current view is that eukaryotic replisomes are independent. Here we show that Ctf4 tightly dimerizes CMG helicase, with an extensive interface involving Psf2, Cdc45, and Sld5. Interestingly, Ctf4 binds only one Pol α-primase.
Zuanning Yuan, Roxana Georgescu, Ruda de Luna Almeida Santos, Daniel Zhang, Lin Bai, Nina Y Yao, Gongpu Zhao, Michael E O'Donnell, Huilin Li   +8 more
doaj   +1 more source

Kinetic model of DNA replication in eukaryotic organisms

, 2003
We formulate a kinetic model of DNA replication that quantitatively describes recent results on DNA replication in the in vitro system of Xenopus laevis prior to the mid-blastula transition.
Avrami, Avrami, Avrami, Ben-Naim, Bensimon, Berezney, Blow, Blow, Blow, Blow, Blumenthal, Brewer, Buongiorno-Nardelli, Cahn, Cairns, Christian, Coverley, Friedman, Gilbert, Gomez, Hand, Herrick, Herrick, Huberman, Hyrien, Jackson, Jasny, Johnson, Kolmogorov, Laskey, Lu, Lucas, Mahbubani, Marheineke, Michalet, Mills, Pasero, Pierron, Plischke, Press, Raghuraman, Rowles, Sekimoto, Shinomiya, Shivashankar, Simon, Walter, Wu   +47 more
core   +1 more source

Plasmodium falciparum gametogenesis essential protein 1 (GEP1) is a transmission‐blocking target

FEBS Letters, EarlyView.
This study shows Plasmodium falciparum GEP1 is vital for activating sexual stages of malarial parasites even independently of a mosquito factor. Knockout parasites completely fail gamete formation even when a phosphodiesterase inhibitor is added. Two single‐nucleotide polymorphisms (V241L and S263P) are found in 12%–20% of field samples.
Frederik Huppertz, Milagros Siebeck Caturelli, Lina S. Lehmann, Florian Kurth, Alexander G. Maier, Kai Matuschewski   +5 more
wiley   +1 more source

Smc5/6’s multifaceted DNA binding capacities stabilize branched DNA structures

Nature Communications, 2022
Using single-molecule visualization and manipulation, Chang et al. show that the eukaryotic Smc5/6 complex preferentially binds to and stabilizes ssDNA-dsDNA junctions, which could serve as the molecular basis for its diverse roles in genome maintenance.
Jeremy T-H. Chang, Shibai Li, Emily C. Beckwitt, Thane Than, Cory Haluska, Joshua Chandanani, Michael E. O’Donnell, Xiaolan Zhao, Shixin Liu   +8 more
doaj   +1 more source

A quantitative model of the initiation of DNA replication in Saccharomyces cerevisiae predicts the effects of system perturbations. [PDF]

, 2012
BackgroundEukaryotic cell proliferation involves DNA replication, a tightly regulated process mediated by a multitude of protein factors. In budding yeast, the initiation of replication is facilitated by the heterohexameric origin recognition complex ...
DaSilva, Lance F, Duncker, Bernard P, Gidvani, Rohan D, Ingalls, Brian P, Li, Grace, McConkey, Brendan J, Sudmant, Peter   +6 more
core   +3 more sources

4‐nitrobenzoate inhibits 4‐hydroxybenzoate polyprenyltransferase in malaria parasites and enhances atovaquone efficacy

FEBS Letters, EarlyView.
Atovaquone is an antimalarial requiring potentiation for sufficient efficacy. We pursued strategies to enhance its activity, showing that 4‐nitrobenzoate inhibits 4‐hydroxybenzoate polyprenyltransferase, decreasing ubiquinone biosynthesis. Since atovaquone competes with ubiquinol in mitochondria, 4‐nitrobenzoate facilitates its action, potentiating ...
Ignasi Bofill Verdaguer, Matheus Felipe Santos, Maurício Mazzine Filho, Gabriela Oliveira Castro, Agustín Hernández, Manoel Aparecido Peres, Alejandro Miguel Katzin, Marcell Crispim   +7 more
wiley   +1 more source

Ultrasensitive deletion detection links mitochondrial DNA replication, disease, and aging

Genome Biology, 2020
Background Acquired human mitochondrial genome (mtDNA) deletions are symptoms and drivers of focal mitochondrial respiratory deficiency, a pathological hallmark of aging and late-onset mitochondrial disease.
Scott A. Lujan, Matthew J. Longley, Margaret H. Humble, Christopher A. Lavender, Adam Burkholder, Emma L. Blakely, Charlotte L. Alston, Grainne S. Gorman, Doug M. Turnbull, Robert McFarland, Robert W. Taylor, Thomas A. Kunkel, William C. Copeland   +12 more
doaj   +1 more source

Isolation of Yeast DNA Replication Mutants in Permeabilized Cells [PDF]

, 1983
A random population of temperature-sensitive mutants was screened by assaying for defects in DNA synthesis in a permeabilized yeast DNA replication system. Twenty mutants defective in in vitro DNA synthesis have been isolated.
Campbell, Judith L., Huang, Nak-hui, Kuo, Chia-lam   +2 more
core  

Linked dimers of the AAA+ ATPase Msp1 reveal energetic demands and mechanistic plasticity for substrate extraction from lipid bilayers

FEBS Letters, EarlyView.
Cells must clear mislocalized or faulty proteins from membranes to survive. The AAA+ ATPase Msp1 performs this task, but dissecting how its six subunits work together is challenging. We engineered linked dimers with varied numbers of functional subunits to reveal how Msp1 subunits cooperate and use energy to extract proteins from the lipid bilayer ...
Deepika Gaur, Brian Acquaviva, Baylee A. Smith, Nathan Walker, Isabella Walter, Matthew L. Wohlever   +5 more
wiley   +1 more source