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Circularized fluorescent nanodiscs for probing protein-lipid interactions.

ABSTRACT: Protein-lipid interactions are vital for numerous transmembrane signaling pathways. However, simple tools to characterize these interactions remain scarce and are much needed to advance our understanding of signal transduction across lipid bilayers. To tackle this challenge, we herein engineer nanodisc as a robust fluorescent sensor for reporting membrane biochemical reactions. We circularize nanodiscs via split GFP and thereby create an intensity-based fluorescent sensor (isenND) for detecting membrane binding and remodeling events. We show that isenND responds robustly and specifically to the action of a diverse array of membrane-interacting proteins and peptides, ranging from synaptotagmin and synuclein involved in neurotransmission to viral fusion peptides of HIV-1 and SARS-CoV-2. Together, isenND can serve as a versatile biochemical reagent useful for basic and translational research of membrane biology.

SUBMITTER: Ren Q

PROVIDER: S-EPMC9135701 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature

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Circularized fluorescent nanodiscs for probing protein-lipid interactions.

Ren Qian Q Zhang Shanwen S Bao Huan H

Communications biology 20220526 1

Protein-lipid interactions are vital for numerous transmembrane signaling pathways. However, simple tools to characterize these interactions remain scarce and are much needed to advance our understanding of signal transduction across lipid bilayers. To tackle this challenge, we herein engineer nanodisc as a robust fluorescent sensor for reporting membrane biochemical reactions. We circularize nanodiscs via split GFP and thereby create an intensity-based fluorescent sensor (isenND) for detecting ...[more]

PMID: 35618817

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Circularized fluorescent nanodiscs for probing protein-lipid interactions.

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Circularized fluorescent nanodiscs for probing protein-lipid interactions.

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