Results 51 to 60 of about 387,698 (305)

DNA mismatch repair and its many roles in eukaryotic cells [PDF]

, 2017
DNA mismatch repair (MMR) is an important DNA repair pathway that plays critical roles in DNA replication fidelity, mutation avoidance and genome stability, all of which contribute significantly to the viability of cells and organisms. MMR is widely-used
Keijzers, Guido, Dekang Liu, Guido Keijzers, Liu, Dekang, Lene Juel Rasmussen, Rasmussen, Lene Juel   +5 more
core   +3 more sources

The symbiotic origin of the eukaryotic cell

Comptes Rendus. Biologies, 2023
Eukaryogenesis represented a major evolutionary transition that led to the emergence of complex cells from simpler ancestors. For several decades, the most accepted scenario involved the evolution of an independent lineage of proto-eukaryotes endowed with an endomembrane system, including a nuclear compartment, a developed cytoskeleton and phagocytosis,
Purificación López-García, David Moreira   +1 more
openaire   +3 more sources

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

FEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe, Tanmay Kumar Mohanty, Rashna Bhandari, Dorothea Fiedler   +3 more
wiley   +1 more source

The contribution of dormant origins to genome stability:from cell biology to human genetics [PDF]

, 2014
The ability of a eukaryotic cell to precisely and accurately replicate its DNA is crucial to maintain genome stability. Here we describe our current understanding of the process by which origins are licensed for DNA replication and review recent work ...
Blow, J. Julian; id_orcid, Chadha, Gaganmeet Singh, Alver, Robert C., Blow, J. Julian   +3 more
core   +1 more source

Biomembranal Myristoyl-Phosphatidylcholine as a Potential Target of the Cell Injury Activity of Vitamin D Decomposition Products in Eukaryotic Cells

Frontiers in Bioscience-Landmark
Background: Vitamin D decomposition products target a myristic acid sidechain of the predominant glycerophospholipid constructed in the biomembranes of Helicobacter pylori, causing gastric cancer in humans, and disrupt the membrane ...
Hirofumi Shimomura, Kiyofumi Wanibuchi, Kouich Hosoda, Avarzed Amgalanbaatar, Mitsuru Shoji, Shunji Hayashi   +5 more
doaj   +1 more source

An isoform of 14‐3‐3 protein regulates transbilayer lipid movement at the plasma membrane

FEBS Letters, EarlyView.
Loss of 14‐3‐3ζ in CHO cells confers resistance to exogenous phosphatidylserine (PS) and impairs endocytosis‐independent inward flip‐flop of fluorescent PS at the plasma membrane. RNAi‐mediated knockdown reproduces this defect, while no additive effect is seen in ATP11C‐deficient cells.
Akiko Yamaji‐Hasegawa, Akira Hattori, Masafumi Tsujimoto, Toshihide Kobayashi   +3 more
wiley   +1 more source

Cell geometry and membrane protein crowding constrain Escherichia coli growth rate, overflow metabolism, respiration, and maintenance energy

FEBS Letters, EarlyView.
The physical dimensions and shape of bacterial cells define the surface area available to acquire nutrients and the volume available for synthesizing proteins and DNA. Here, we use computational systems biology to decode the importance of cell geometry as a major determinant of prokaryotic phenotype, including growth rate and metabolic efficiency. This
Ross P. Carlson, Tomáš Gedeon, Mauricio Garcia Benitez, Campbell Putnam, William R. Harcombe, Radhakrishnan Mahadevan, Ashley E. Beck   +6 more
wiley   +1 more source

Differential Requirements for MCM Proteins in DNA Replication in Drosophila S2 Cells. [PDF]

, 2007
BACKGROUND: The MCM2-7 proteins are crucial components of the pre replication complex (preRC) in eukaryotes. Since they are significantly more abundant than other preRC components, we were interested in determining whether the entire cellular content was
Reina Hashimoto, Heck, Margarete M.S., Hashimoto, Reina, Sherkow, Jake, Sharron Vass, Heck, MM, Vass, Sharron, Hashimoto, R, Hashimoto Reina, Yamaguchi Masamitsu, Crevel, Gilles, Cotterill, S, Yamaguchi, M, Heck, Margarete M. S., Vass Sharron, Heck Margarete M.S., Sherkow Jake, Sherkow, Jacob S., Yamaguchi, Masamitsu, Sherkow, J, Cotterill Sue, Crevel Gilles, Margarete M S Heck, Crevel, G, Cotterill, Sue, Vass, S, Gilles Crevel, Margarete M.S. Heck, Jake Sherkow, Sue Cotterill, Masamitsu Yamaguchi   +30 more
core   +1 more source

Phagocytosis-like cell engulfment by a planctomycete bacterium

Nature Communications, 2019
Phagocytosis is a typically eukaryotic feature that could be behind the origin of eukaryotic cells. Here, the authors describe a bacterium that can engulf other bacteria and small eukaryotic cells through a phagocytosis-like mechanism.
Takashi Shiratori, Shigekatsu Suzuki, Yukako Kakizawa, Ken-ichiro Ishida   +3 more
doaj   +1 more source

A Bacterial Phage Tail-like Structure Kills Eukaryotic Cells by Injecting a Nuclease Effector

Cell Reports, 2019
Summary: Many bacteria interact with target organisms using syringe-like structures called contractile injection systems (CISs). CISs structurally resemble headless bacteriophages and share evolutionarily related proteins such as the tail tube, sheath ...
Iara Rocchi, Charles F. Ericson, Kyle E. Malter, Sahar Zargar, Fabian Eisenstein, Martin Pilhofer, Sinem Beyhan, Nicholas J. Shikuma   +7 more
doaj   +1 more source