Single-photon smFRET: II. Application to continuous illumination

Here we adapt the Bayesian nonparametrics (BNP) framework presented in the first companion article to analyze kinetics from single-photon, single-molecule Förster resonance energy transfer (smFRET) traces generated under continuous illumination. Using our sampler, BNP-FRET, we learn the escape rates...

Full description

Bibliographic Details
Main Authors: Ayush Saurabh, Matthew Safar, Mohamadreza Fazel, Ioannis Sgouralis, Steve Pressé
Format: Article
Language:English
Published: Elsevier 2023-03-01
Series:Biophysical Reports
Online Access:http://www.sciencedirect.com/science/article/pii/S2667074722000441
_version_ 1798006006980018176
author Ayush Saurabh
Matthew Safar
Mohamadreza Fazel
Ioannis Sgouralis
Steve Pressé
author_facet Ayush Saurabh
Matthew Safar
Mohamadreza Fazel
Ioannis Sgouralis
Steve Pressé
author_sort Ayush Saurabh
collection DOAJ
description Here we adapt the Bayesian nonparametrics (BNP) framework presented in the first companion article to analyze kinetics from single-photon, single-molecule Förster resonance energy transfer (smFRET) traces generated under continuous illumination. Using our sampler, BNP-FRET, we learn the escape rates and the number of system states given a photon trace. We benchmark our method by analyzing a range of synthetic and experimental data. Particularly, we apply our method to simultaneously learn the number of system states and the corresponding kinetics for intrinsically disordered proteins using two-color FRET under varying chemical conditions. Moreover, using synthetic data, we show that our method can deduce the number of system states even when kinetics occur at timescales of interphoton intervals.
first_indexed 2024-04-11T12:48:04Z
format Article
id doaj.art-fb6150f4728a487481d37b8f7d48aacf
institution Directory Open Access Journal
issn 2667-0747
language English
last_indexed 2024-04-11T12:48:04Z
publishDate 2023-03-01
publisher Elsevier
record_format Article
series Biophysical Reports
spelling doaj.art-fb6150f4728a487481d37b8f7d48aacf2022-12-22T04:23:18ZengElsevierBiophysical Reports2667-07472023-03-0131100087Single-photon smFRET: II. Application to continuous illuminationAyush Saurabh0Matthew Safar1Mohamadreza Fazel2Ioannis Sgouralis3Steve Pressé4Center for Biological Physics, Arizona State University, Tempe, Arizona; Department of Physics, Arizona State University, Tempe, ArizonaCenter for Biological Physics, Arizona State University, Tempe, Arizona; Department of Mathematics and Statistical Science, Arizona State University, Tempe, ArizonaCenter for Biological Physics, Arizona State University, Tempe, Arizona; Department of Physics, Arizona State University, Tempe, ArizonaDepartment of Mathematics, University of Tennessee Knoxville, Knoxville, TennesseeCenter for Biological Physics, Arizona State University, Tempe, Arizona; Department of Physics, Arizona State University, Tempe, Arizona; School of Molecular Sciences, Arizona State University, Tempe, Arizona; Corresponding authorHere we adapt the Bayesian nonparametrics (BNP) framework presented in the first companion article to analyze kinetics from single-photon, single-molecule Förster resonance energy transfer (smFRET) traces generated under continuous illumination. Using our sampler, BNP-FRET, we learn the escape rates and the number of system states given a photon trace. We benchmark our method by analyzing a range of synthetic and experimental data. Particularly, we apply our method to simultaneously learn the number of system states and the corresponding kinetics for intrinsically disordered proteins using two-color FRET under varying chemical conditions. Moreover, using synthetic data, we show that our method can deduce the number of system states even when kinetics occur at timescales of interphoton intervals.http://www.sciencedirect.com/science/article/pii/S2667074722000441
spellingShingle Ayush Saurabh
Matthew Safar
Mohamadreza Fazel
Ioannis Sgouralis
Steve Pressé
Single-photon smFRET: II. Application to continuous illumination
Biophysical Reports
title Single-photon smFRET: II. Application to continuous illumination
title_full Single-photon smFRET: II. Application to continuous illumination
title_fullStr Single-photon smFRET: II. Application to continuous illumination
title_full_unstemmed Single-photon smFRET: II. Application to continuous illumination
title_short Single-photon smFRET: II. Application to continuous illumination
title_sort single photon smfret ii application to continuous illumination
url http://www.sciencedirect.com/science/article/pii/S2667074722000441
work_keys_str_mv AT ayushsaurabh singlephotonsmfretiiapplicationtocontinuousillumination
AT matthewsafar singlephotonsmfretiiapplicationtocontinuousillumination
AT mohamadrezafazel singlephotonsmfretiiapplicationtocontinuousillumination
AT ioannissgouralis singlephotonsmfretiiapplicationtocontinuousillumination
AT stevepresse singlephotonsmfretiiapplicationtocontinuousillumination