Results 41 to 50 of about 74,511 (302)

Exploring the functional domain and the target of the tetanus toxin light chain in neurohypophysial terminals [PDF]

, 1994
The tetanus toxin light chain blocks calcium induced vasopressin release from neurohypophysial nerve terminals. Here we show that histidine residue 233 within the putative zinc binding motif of the tetanus toxin light chain is essential for the ...
Weller, U., Dayanithi, G., Yamasaki, S., Niemann, H., Gratzl, Manfred, Stecher, B., Höhne-Zell, B., Binz, T.   +7 more
core   +1 more source

T-cell trans-synaptic vesicles are distinct and carry greater effector content than constitutive extracellular vesicles

, 2022
The immunological synapse is a molecular hub that facilitates the delivery of three activation signals, namely antigen, costimulation/corepression and cytokines, from antigen-presenting cells (APC) to T cells.
Valvo, Salvatore, Saliba, David G., Engledow, Simon, Aubert, Dimitri, Dustin, Michael L., Sezgin, Erdinc, Dushek, Omer, Attar, Moustafa, Fischer, Roman, Dustin, Michael L, Peng, Yanchun, Siller-Farfán, Jesús A., Céspedes, Pablo F., Fritzsche, Marco, Jainarayanan, Ashwin Kumar, Dong, Tao, Kvalvaag, Audun, Siller-Farfán, Jesús A, Céspedes, Pablo, Kurz, Elke, Fernández Messina, Lola María, Dustin, Michael, Saliba, David G, Ganskow, Charity, Jainarayanan, Ashwin, Céspedes, Pablo F, Colin-York, Huw, Peacock, Ben, Law, Alice, Chen, Lina, Saliba, David, Siller-Farfán, Jesús, Fernández-Messina, Lola, Sánchez-Madrid, Francisco, Johnson, Errin, Hester, Svenja   +35 more
core   +1 more source

Incomplete vesicular docking limits synaptic strength under high release probability conditions

eLife, 2020
Central mammalian synapses release synaptic vesicles in dedicated structures called docking/release sites. It has been assumed that when voltage-dependent calcium entry is sufficiently large, synaptic output attains a maximum value of one synaptic ...
Gerardo Malagon, Takafumi Miki, Van Tran, Laura C Gomez, Alain Marty   +4 more
doaj   +1 more source

Amyloid-β acts as a regulator of neurotransmitter release disrupting the interaction between synaptophysin and VAMP2.

, 2012
BACKGROUND: It is becoming increasingly evident that deficits in the cortex and hippocampus at early stages of dementia in Alzheimer's disease (AD) are associated with synaptic damage caused by oligomers of the toxic amyloid-β peptide (Aβ42).
Russell, CL, Claire L Russell, Beesley, PW, Sophia Semerdjieva, Ruth M Empson, Semerdjieva Sophia, Brian M Austen, Empson, RM, Austen Brian M., Empson Ruth M., Russell Claire L., Philip W Beesley, Alifragis Pavlos, Beesley Philip W., Semerdjieva, S, Alifragis, P, Pavlos Alifragis, Austen, BM   +17 more
core   +1 more source

Secretory vesicles are preferentially targeted to areas of low molecular SNARE density [PDF]

, 2012
Intercellular communication is commonly mediated by the regulated fusion, or exocytosis, of vesicles with the cell surface. SNARE (soluble N-ethymaleimide sensitive factor attachment protein receptor) proteins are the catalytic core of the secretory ...
Weiping Lu (120665), Dun, Alison R., Lu, Weiping, Rory R. Duncan (120667), Weiping Lu, Gabriel J. Lord (120664), Colin Rickman (120669), Andrew Dunn, Gabriel J Lord, Martin, Kirsty J, Lei Yang (102719), Qiu, Zhen, Rickman, Colin; id_orcid, Kirsty J Martin, Lei Yang, Duncan, Rory R, Duncan, Rory R., Alison R. Dun (120660), Zhen Qiu (120662), Rickman, Colin, Dun, Alison, Qiu, Zhen; id_orcid, Colin Rickman, Rory R Duncan, Lord, Gabriel J, Kirsty J. Martin (120661), Alison R Dun, Lord, Gabriel J., Yang, Lei, Martin, Kirsty J., Andrew Dunn (120663), Dunn, Andrew, Zhen Qiu   +32 more
core   +1 more source

Spontaneous and evoked synaptic vesicle release arises from a single releasable pool

Cell Reports
Summary: The quantal content of an evoked postsynaptic response is typically determined by dividing it by the average spontaneous miniature response. However, this approach is challenged by the notion that different synaptic vesicle pools might drive ...
Junxiu Duan, Martin Kahms, Ana Steinhoff, Jürgen Klingauf   +3 more
doaj   +1 more source

Recycling of Synaptic Vesicles

, 1997
Publisher Summary A widely accepted model describes the synaptic vesicle cycle as a modification of the receptor-mediated recycling pathway present in all cells. This pathway, by which cell surface receptors, like transferrin or low-density lipoprotein receptors, are internalized and recycled back to the surface, involves two distinct vesicular ...
R, Bauerfeind, C, David, D, Grabs, P S, McPherson, Y, Nemoto, V I, Slepnev, K, Takei, P, De Camilli   +7 more
openaire   +2 more sources

Phosphoinositides and inositol phosphates as molecular glues

FEBS Letters, EarlyView.
Inositol phosphates (IPs) and phosphoinositides (PIPs) regulate diverse eukaryotic processes. Beyond recruiting signaling proteins or acting as structural cofactors, recent studies suggest they mediate protein–protein interactions as natural molecular glues.
Aleshia Seaton‐Terry, Alexander J. Cutright, Mong Na Claire Loi, Jessica Martin, Joseph W. Gilligan, Jakub N. Kubina, Michael J. Arambula, Susanna Tanada Palmu, Daniella Zhou, Raymond D. Blind   +9 more
wiley   +1 more source

Autism and mild epilepsy associated with a de novo missense pathogenic variant in the GTPase effector domain of DNM1

American Journal of Medical Genetics Part C: Seminars in Medical Genetics, EarlyView., 2023
Abstract Dynamin 1 is a GTPase protein involved in synaptic vesicle fission, which facilitates the exocytosis of neurotransmitters necessary for normal signaling. Pathogenic variants in the DNM1 gene are associated with intractable epilepsy, often manifested as infantile spasms at onset, developmental delay, and a movement disorder, and are located in ...
Davide Mei, Elena Parrini, Claudia Bianchini, Maria Luisa Ricci, Renzo Guerrini   +4 more
wiley   +1 more source

PARK(ing) time–How park deficiency affects the biological clock in a Drosophila model of Parkinson's disease

FEBS Letters, EarlyView.
Drosophila park mutants serve as a model for Parkinson's disease. We used this strain to investigate the connection between oxidative stress and the circadian clock mechanism. We showed that increased oxidative stress affects the physiology of pacemaker cells, disrupting their daily structural plasticity. Lack of rhythmic signaling from pacemaker cells
Kamila Zientara, Kinga Skoczek, Elzbieta Pyza, Milena Damulewicz   +3 more
wiley   +1 more source