Results 71 to 80 of about 231,218 (308)

Aminoacyl-tRNA-charged eukaryotic elongation factor 1A is the bona fide substrate for Legionella pneumophila effector glucosyltransferases. [PDF]

open access: yesPLoS ONE, 2011
Legionella pneumophila, which is the causative organism of Legionnaireś disease, translocates numerous effector proteins into the host cell cytosol by a type IV secretion system during infection.
Tina Tzivelekidis   +8 more
doaj   +1 more source

Unraveling the Molecular Mechanisms Underlying Spontaneous Multipolar Mitosis Through CIN‐seq

open access: yesAdvanced Science, EarlyView.
Multipolar mitosis, a hallmark of chromosomal instability (CIN), drives tumor heterogeneity but is challenging to study in live cells. Using CIN‐seq, a single‐cell multiomics method, we profiled rare CIN events and identified mechanisms associated with viable multipolar mitosis, including PTEN attenuation, Rho GTPase‐driven cytokinesis failure, and ...
Pin‐Rui Su   +10 more
wiley   +1 more source

Rabs, Rips, FIPs, and Endocytic Membrane Traffic

open access: yesThe Scientific World Journal, 2003
Rab GTPases, proteins belonging to the Ras-like small GTP-binding protein superfamily, have emerged as master regulators of cellular membrane transport.
Rytis Prekeris
doaj   +1 more source

Reconstructed evolutionary history of the yeast septins Cdc11 and Shs1

open access: yesG3: Genes, Genomes, Genetics, 2020
Septins are GTP-binding proteins conserved across metazoans. They can polymerize into extended filaments and, hence, are considered a component of the cytoskeleton.
Julie Takagi   +7 more
doaj   +1 more source

Kinetic and Structural Analysis of the Mg2+ -binding Site of the Guanine Nucleotide-binding Protein p21 H-ras. [PDF]

open access: yes, 1993
The coordination and binding of the Mg2+ ion in the nucleotide−binding site of p21 have been investigated using site−directed mutagenesis, kinetic methods, and phosphorous NMR.
Borasio, Gian Domenico   +6 more
core  

Protein import into chloroplasts: new aspects of a well-known topic [PDF]

open access: yes, 2007
Protein import into plant chloroplasts is a fascinating topic that is being investigated by many research groups. Since the majority of chloroplast proteins are synthesised as precursor proteins in the cytosol, they have to be posttranslationally ...
Bölter, Bettina   +2 more
core   +1 more source

A Central Somatic Transmission Mediates Proprioceptive Facilitation of Muscle Pain

open access: yesAdvanced Science, EarlyView.
Zhang et al. uncover a novel central mechanism for persistent muscle pain, in which TRPA1 sensitization in MeV proprioceptive neurons enhances somatic secretion. This, in turn, disinhibits descending pain control from neighboring noradrenergic locus coeruleus neurons via local GABAergic circuits, thereby promoting inflammatory muscle pain.
Xiaoyu Zhang   +15 more
wiley   +1 more source

Structural comparison of unconventional G protein YchF with heterotrimeric G protein and small G protein

open access: yesPlant Signaling & Behavior, 2022
Guanine nucleotide-binding (G) proteins, namely, phosphate-binding (P) loop GTPases, play a critical role in life processes among different species. Based on the structural characteristics, G proteins can be divided into heterotrimeric G proteins, small ...
Maozhen Luo   +7 more
doaj   +1 more source

The coordination of cell growth during fission yeast mating requires Ras1-GTP hydrolysis [PDF]

open access: yes, 2013
The spatial and temporal control of polarity is fundamental to the survival of all organisms. Cells define their polarity using highly conserved mechanisms that frequently rely upon the action of small GTPases, such as Ras and Cdc42.
A Merla   +58 more
core   +3 more sources

Paternal Circadian Disruption Impairs Offspring Cognition via Sperm microRNAs

open access: yesAdvanced Science, EarlyView.
Paternal circadian disruption remodels the sperm small RNA payload, elevating miR‐92a‐3p/miR‐25‐3p levels and perturbing early embryonic gene regulatory programs. Microinjection experiments and single‐embryo transcriptomics reveal sex‐specific developmental vulnerabilities, ultimately impairing offspring hippocampal synaptic plasticity and cognition ...
Kexin Zou   +22 more
wiley   +1 more source

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