In Silico Study of the Mechanism of Binding of the N-Terminal Region of α Synuclein to Synaptic-Like Membranes

The membrane binding by α-synuclein (αS), a presynaptic protein whose aggregation is strongly linked with Parkinson’s disease, influences its biological behavior under functional and pathological conditions. This interaction requires a conformational transition from a disordered-unbound to a partial...

Full description

Bibliographic Details
Main Authors: Carlos Navarro-Paya, Maximo Sanz-Hernandez, Alfonso De Simone
Format: Article
Language:English
Published: MDPI AG 2020-06-01
Series:Life
Subjects:
Online Access:https://www.mdpi.com/2075-1729/10/6/98
_version_ 1827714234147930112
author Carlos Navarro-Paya
Maximo Sanz-Hernandez
Alfonso De Simone
author_facet Carlos Navarro-Paya
Maximo Sanz-Hernandez
Alfonso De Simone
author_sort Carlos Navarro-Paya
collection DOAJ
description The membrane binding by α-synuclein (αS), a presynaptic protein whose aggregation is strongly linked with Parkinson’s disease, influences its biological behavior under functional and pathological conditions. This interaction requires a conformational transition from a disordered-unbound to a partially helical membrane-bound state of the protein. In the present study, we used enhanced coarse-grained MD simulations to characterize the sequence and conformational determinants of the binding to synaptic-like vesicles by the N-terminal region of αS. This region is the membrane anchor and is of crucial importance for the properties of the physiological monomeric state of αS as well as for its aberrant aggregates. These results identify the key factors that play a role in the binding of αS with synaptic lipid bilayers in both membrane-tethered and membrane-locked conformational states.
first_indexed 2024-03-10T18:51:56Z
format Article
id doaj.art-fd95ad6a69cc44ed8fa6dee5596a7863
institution Directory Open Access Journal
issn 2075-1729
language English
last_indexed 2024-03-10T18:51:56Z
publishDate 2020-06-01
publisher MDPI AG
record_format Article
series Life
spelling doaj.art-fd95ad6a69cc44ed8fa6dee5596a78632023-11-20T05:05:22ZengMDPI AGLife2075-17292020-06-011069810.3390/life10060098In Silico Study of the Mechanism of Binding of the N-Terminal Region of α Synuclein to Synaptic-Like MembranesCarlos Navarro-Paya0Maximo Sanz-Hernandez1Alfonso De Simone2Department of Life Sciences, Imperial College London, South Kensington, London SW7 2AX, UKDepartment of Life Sciences, Imperial College London, South Kensington, London SW7 2AX, UKDepartment of Life Sciences, Imperial College London, South Kensington, London SW7 2AX, UKThe membrane binding by α-synuclein (αS), a presynaptic protein whose aggregation is strongly linked with Parkinson’s disease, influences its biological behavior under functional and pathological conditions. This interaction requires a conformational transition from a disordered-unbound to a partially helical membrane-bound state of the protein. In the present study, we used enhanced coarse-grained MD simulations to characterize the sequence and conformational determinants of the binding to synaptic-like vesicles by the N-terminal region of αS. This region is the membrane anchor and is of crucial importance for the properties of the physiological monomeric state of αS as well as for its aberrant aggregates. These results identify the key factors that play a role in the binding of αS with synaptic lipid bilayers in both membrane-tethered and membrane-locked conformational states.https://www.mdpi.com/2075-1729/10/6/98α-Synucleinmembrane bindingdisorder-to-order transitioncoarse-grained simulationsParkinson’s disease
spellingShingle Carlos Navarro-Paya
Maximo Sanz-Hernandez
Alfonso De Simone
In Silico Study of the Mechanism of Binding of the N-Terminal Region of α Synuclein to Synaptic-Like Membranes
Life
α-Synuclein
membrane binding
disorder-to-order transition
coarse-grained simulations
Parkinson’s disease
title In Silico Study of the Mechanism of Binding of the N-Terminal Region of α Synuclein to Synaptic-Like Membranes
title_full In Silico Study of the Mechanism of Binding of the N-Terminal Region of α Synuclein to Synaptic-Like Membranes
title_fullStr In Silico Study of the Mechanism of Binding of the N-Terminal Region of α Synuclein to Synaptic-Like Membranes
title_full_unstemmed In Silico Study of the Mechanism of Binding of the N-Terminal Region of α Synuclein to Synaptic-Like Membranes
title_short In Silico Study of the Mechanism of Binding of the N-Terminal Region of α Synuclein to Synaptic-Like Membranes
title_sort in silico study of the mechanism of binding of the n terminal region of α synuclein to synaptic like membranes
topic α-Synuclein
membrane binding
disorder-to-order transition
coarse-grained simulations
Parkinson’s disease
url https://www.mdpi.com/2075-1729/10/6/98
work_keys_str_mv AT carlosnavarropaya insilicostudyofthemechanismofbindingofthenterminalregionofasynucleintosynapticlikemembranes
AT maximosanzhernandez insilicostudyofthemechanismofbindingofthenterminalregionofasynucleintosynapticlikemembranes
AT alfonsodesimone insilicostudyofthemechanismofbindingofthenterminalregionofasynucleintosynapticlikemembranes