Results 71 to 80 of about 72,246 (300)

The rab3A-22A chimera prevents sperm exocytosis by stabilizing open fusion pores [PDF]

open access: yes, 2016
At the final stage of exocytotis, a fusion pore opens between the plasma and a secretory vesicle membranes; typically, when the pore dilates the vesicle releases its cargo.
Bustos, Matias Alberto   +5 more
core   +1 more source

AAA+ protein unfoldases—the Moirai of the proteome

open access: yesFEBS Letters, EarlyView.
AAA+ unfoldases are essential molecular motors that power protein degradation and disaggregation. This review integrates recent cryo‐electron microscopy (cryo‐EM) structures and single‐molecule biophysical data to reconcile competing models of substrate translocation.
Stavros Azinas, Marta Carroni
wiley   +1 more source

Sec3 promotes the initial binary t-SNARE complex assembly and membrane fusion

open access: yesNature Communications, 2017
Membrane fusion during exocytosis is mediated by interaction between SNARE proteins on vesicles and the cell membrane, but how SNARE complex assembly is initiated remains unknown.
Peng Yue   +7 more
doaj   +1 more source

The nature of the Syntaxin4 C-terminus affects Munc18c-supported SNARE assembly. [PDF]

open access: yesPLoS ONE, 2017
Vesicular transport of cellular cargo requires targeted membrane fusion and formation of a SNARE protein complex that draws the two apposing fusing membranes together. Insulin-regulated delivery and fusion of glucose transporter-4 storage vesicles at the
Asma Rehman   +10 more
doaj   +1 more source

Stochastic RNA editing of the Complexin C-terminus within single neurons regulates neurotransmitter release

open access: yesCell Reports, 2023
Summary: Neurotransmitter release requires assembly of the SNARE complex fusion machinery, with multiple SNARE-binding proteins regulating when and where synaptic vesicle fusion occurs.
Elizabeth A. Brija   +3 more
doaj   +1 more source

CaMKIIalpha interacts with multi-PDZ domain protein MUPP1 in spermatozoa and prevents spontaneous acrosomal exocytosis [PDF]

open access: yes, 2009
The success of acrosomal exocytosis, a complex process with a variety of inter-related steps, relies on the coordinated interaction of participating signaling molecules.
Ackermann, Frauke   +5 more
core   +1 more source

PARP inhibition and pharmacological ascorbate demonstrate synergy in castration‐resistant prostate cancer

open access: yesMolecular Oncology, EarlyView.
Pharmacologic ascorbate (vitamin C) increases ROS, disrupts cellular metabolism, and induces DNA damage in CRPC cells. These effects sensitize tumors to PARP inhibition, producing synergistic growth suppression with olaparib in vitro and significantly delayed tumor progression in vivo. Pyruvate rescue confirms ROS‐dependent activity.
Nicolas Gordon   +13 more
wiley   +1 more source

Role of SNAREs in Neurodegenerative Diseases

open access: yesCells, 2021
Neurodegenerative diseases are pathologies of the central and peripheral nervous systems characterized by loss of brain functions and problems in movement which occur due to the slow and progressive degeneration of cellular elements.
Azzurra Margiotta
doaj   +1 more source

Numerical Experiments with Coupled Membranes and the Snare Mechanism [PDF]

open access: yes, 2010
National audienceThe snare drum is one of the more complex musical instruments from a modeling and synthesis perspective---it includes elements modeled as 0D (the drum stick), 1D (the snares), 2D (a pair of membranes) and 3D (the cavity and perhaps the ...
Bilbao, Stefan
core   +1 more source

Protein structure and phenotypic analysis of pathogenic and population missense variants in STXBP1 [PDF]

open access: yes, 2017
Background: Syntaxin-binding protein 1, encoded by STXBP1, is highly expressed in the brain and involved in fusing synaptic vesicles with the plasma membrane.
Baker, K   +17 more
core   +2 more sources

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