The bidirectional interplay of α-Synuclein with lipids in the central nervous system and its implications for the pathogenesis of Parkinson's disease

K Battis, W Xiang, J Winkler - International journal of molecular sciences, 2023 - mdpi.com
The alteration and aggregation of alpha-synuclein (α-syn) play a crucial role in
neurodegenerative diseases collectively termed as synucleinopathies, including Parkinson's …

Synaptotagmin-1 C2B domains cooperatively stabilize the fusion stalk via a master-servant mechanism

AL Di Bartolo, D Masone - Chemical Science, 2022 - pubs.rsc.org
Synaptotagmin-1 is a low-affinity Ca2+ sensor that triggers synchronous vesicle fusion. It
contains two similar C2 domains (C2A and C2B) that cooperate in membrane binding, being …

Membrane remodeling and stimulation of aggregation following α-synuclein adsorption to phosphotidylserine vesicles

BM Hoover, Z Shen, CG Gahan, DM Lynn… - The Journal of …, 2021 - ACS Publications
α-Synuclein is an intrinsically disordered protein abundant in presynaptic terminals in
neurons and in synaptic vesicles. α-Synuclein's interaction with lipid bilayers is important not …

Enhanced expansion and reduced kiss-and-run events in fusion pores steered by synaptotagmin-1 C2B domains

AL Di Bartolo, CN Tomes, LS Mayorga… - Journal of Chemical …, 2022 - ACS Publications
The fusion pore controls the release of exocytotic vesicle contents through a precise
orchestration of lipids from the fusing membranes and proteins. There is a major lipid …

Intrinsic Disorder in α-Synuclein Regulates the Exocytotic Fusion Pore Transition

AL Di Bartolo, M Caparotta… - ACS Chemical …, 2023 - ACS Publications
Today, it is widely accepted that intrinsic disorder is strongly related to the cell cycle, during
mitosis, differentiation, and apoptosis. Of particular interest are hybrid proteins possessing …

The synaptotagmin-1 C2B domain is a key regulator in the stabilization of the fusion pore

M Caparotta, CN Tomes, LS Mayorga… - Journal of Chemical …, 2020 - ACS Publications
Fusion pores serve as an effective mechanism to connect intracellular organelles and
release vesicle contents during exocytosis. A complex lipid rearrangement takes place as …

α-Synuclein is required for sperm exocytosis at a post-fusion stage

MV Buzzatto, MV Berberián, AL Di Bartolo… - Frontiers in Cell and …, 2023 - frontiersin.org
The sperm acrosome is a large dense-core granule whose contents are secreted by
regulated exocytosis at fertilization through the opening of numerous fusion pores between …

Myomerger Induces Membrane Hemifusion and Regulates Fusion Pore Expansion

AL Di Bartolo, M Caparotta, LM Polo, D Masone - Biochemistry, 2024 - ACS Publications
Membrane fusion is a crucial mechanism in a wide variety of important events in cell biology
from viral infection to exocytosis. However, despite many efforts and much progress, cell …

Influence of Cholesterol on the Membrane Binding and Conformation of α-Synuclein

Z Qi, M Wan, J Zhang, Z Li - The Journal of Physical Chemistry B, 2023 - ACS Publications
The α-Synuclein (α-Syn) plays an important role in the pathology of Parkinson's disease
(PD), and its oligomers and fibrils are toxic to the nervous system. As organisms age, the …

Cholesterol plays a decisive role in tetraspanin assemblies during bilayer deformations

M Caparotta, D Masone - Biosystems, 2021 - Elsevier
The tetraspanin family plays key roles in many physiological processes, such as, tumour
invasion, cell motility, virus infection, cell attachment and entry. Tetraspanins function as …