Whispering-gallery mode (WGM) sensors: review of established and WGM-based techniques to study protein conformational dynamics.

Abstract:

:Monitoring the conformational dynamics of proteins is crucial for a better understanding of their biological functions. To observe the structural dynamics of proteins, it is often necessary to study each molecule individually. To this end, single-molecule techniques have been developed such as Förster resonance energy transfer and optical tweezers. However, although powerful, these techniques do have their limitations, for example, limited temporal resolution, or necessity for fluorescent labelling, and they can often only access a limited set of all protein motions. Here, within the context of established structural biology techniques, we review a new class of highly sensitive optical devices based on WGM, which characterise protein dynamics on previously inaccessible timescales, visualise motions throughout a protein, and track movements of single atoms.

journal_name

Curr Opin Chem Biol

authors

Frustaci S,Vollmer F

doi

10.1016/j.cbpa.2019.05.003

subject

Has Abstract

pub_date

2019-08-01 00:00:00

pages

66-73

eissn

1367-5931

issn

1879-0402

pii

S1367-5931(19)30003-1

journal_volume

51

pub_type

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