Theoretical models for tension-dependent DNA looping time

The influence of tension on DNA looping has been studied both experimentally and theoretically in the past. However, different theoretical models have yielded different predictions, leaving uncertainty about their validity. These currently available models rely on approximations, which we here show...

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Main Authors: Wout Laeremans, Wouter G. Ellenbroek
Format: Article
Language:English
Published: American Physical Society 2025-08-01
Series:Physical Review Research
Online Access:http://doi.org/10.1103/pq2d-t5lx
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author Wout Laeremans
Wouter G. Ellenbroek
author_facet Wout Laeremans
Wouter G. Ellenbroek
author_sort Wout Laeremans
collection DOAJ
description The influence of tension on DNA looping has been studied both experimentally and theoretically in the past. However, different theoretical models have yielded different predictions, leaving uncertainty about their validity. These currently available models rely on approximations, which we here show to be valid only for short molecules. We briefly review the predictions of those models and propose a model that demonstrates exceptional agreement with simulations for long semiflexible chains. Additionally, we elucidate the relationship between our result and that of the previously proposed two-state model, highlighting the distinct interpretative approach that underpins our framework. Our findings offer predictive insights that pave the way for future experimental validation.
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spelling doaj-art-fedf432e1d3f48e8b0d2d050d86b588d2025-08-22T14:31:17ZengAmerican Physical SocietyPhysical Review Research2643-15642025-08-0173L03204110.1103/pq2d-t5lxTheoretical models for tension-dependent DNA looping timeWout LaeremansWouter G. EllenbroekThe influence of tension on DNA looping has been studied both experimentally and theoretically in the past. However, different theoretical models have yielded different predictions, leaving uncertainty about their validity. These currently available models rely on approximations, which we here show to be valid only for short molecules. We briefly review the predictions of those models and propose a model that demonstrates exceptional agreement with simulations for long semiflexible chains. Additionally, we elucidate the relationship between our result and that of the previously proposed two-state model, highlighting the distinct interpretative approach that underpins our framework. Our findings offer predictive insights that pave the way for future experimental validation.http://doi.org/10.1103/pq2d-t5lx
spellingShingle Wout Laeremans
Wouter G. Ellenbroek
Theoretical models for tension-dependent DNA looping time
Physical Review Research
title Theoretical models for tension-dependent DNA looping time
title_full Theoretical models for tension-dependent DNA looping time
title_fullStr Theoretical models for tension-dependent DNA looping time
title_full_unstemmed Theoretical models for tension-dependent DNA looping time
title_short Theoretical models for tension-dependent DNA looping time
title_sort theoretical models for tension dependent dna looping time
url http://doi.org/10.1103/pq2d-t5lx
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AT woutergellenbroek theoreticalmodelsfortensiondependentdnaloopingtime