On the dimensionless model of the transcription bubble dynamics

The dynamics of transcription bubbles is modeled using a system of nonlinear differential equations, the one-soliton solutions of which (kinks), are interpreted as a mathematical images of transcription bubbles. These equations contain a lot of DNA dynamic parameters, including the moments of inerti...

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Main Authors: Larisa A. Krasnobaeva, Ludmila V. Yakushevich
Format: Article
Language:English
Published: AIMS Press 2023-05-01
Series:AIMS Biophysics
Subjects:
Online Access:https://www.aimspress.com/article/doi/10.3934/biophy.2023013?viewType=HTML
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author Larisa A. Krasnobaeva
Ludmila V. Yakushevich
author_facet Larisa A. Krasnobaeva
Ludmila V. Yakushevich
author_sort Larisa A. Krasnobaeva
collection DOAJ
description The dynamics of transcription bubbles is modeled using a system of nonlinear differential equations, the one-soliton solutions of which (kinks), are interpreted as a mathematical images of transcription bubbles. These equations contain a lot of DNA dynamic parameters, including the moments of inertia of nitrous bases, distances between base pairs, distances from the centers of mass of bases to sugar-phosphate chains, rigidity of the sugar-phosphate backbone, and interactions between bases within pairs. However, estimates of the parameter values are often difficult, and it is not convenient or simple to operate with such multi-parameter systems. One of the ways to reduce the number of the DNA dynamic parameters is to transform the model equations to a dimensionless form. In this work, we construct a dimensionless DNA model and apply it to study transcription bubbles dynamics. We show that transformation to a dimensionless form really leads to a decrease in the number of the model parameters and really simplifies the analysis of model equations and their solutions.
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spelling doaj.art-0219794fb2134db6bae8321c71b9f7642023-09-07T06:27:28ZengAIMS PressAIMS Biophysics2377-90982023-05-0110220521910.3934/biophy.2023013On the dimensionless model of the transcription bubble dynamicsLarisa A. Krasnobaeva0Ludmila V. Yakushevich11. Siberian State Medical University, 634050 Tomsk, Moscow traсt 2, Russia 2. Tomsk State University, 634050 Tomsk, Lenin Avenue 36, Russia3. Institute of Cell Biophysics, Russian Academy of Sciences, 142290 Pushchino. Institutskaya str. 3, Moscow region, RussiaThe dynamics of transcription bubbles is modeled using a system of nonlinear differential equations, the one-soliton solutions of which (kinks), are interpreted as a mathematical images of transcription bubbles. These equations contain a lot of DNA dynamic parameters, including the moments of inertia of nitrous bases, distances between base pairs, distances from the centers of mass of bases to sugar-phosphate chains, rigidity of the sugar-phosphate backbone, and interactions between bases within pairs. However, estimates of the parameter values are often difficult, and it is not convenient or simple to operate with such multi-parameter systems. One of the ways to reduce the number of the DNA dynamic parameters is to transform the model equations to a dimensionless form. In this work, we construct a dimensionless DNA model and apply it to study transcription bubbles dynamics. We show that transformation to a dimensionless form really leads to a decrease in the number of the model parameters and really simplifies the analysis of model equations and their solutions.https://www.aimspress.com/article/doi/10.3934/biophy.2023013?viewType=HTMLtranscription bubblenonlinear dna modelkinksmclaughlin-scott equationkink trajectories
spellingShingle Larisa A. Krasnobaeva
Ludmila V. Yakushevich
On the dimensionless model of the transcription bubble dynamics
AIMS Biophysics
transcription bubble
nonlinear dna model
kinks
mclaughlin-scott equation
kink trajectories
title On the dimensionless model of the transcription bubble dynamics
title_full On the dimensionless model of the transcription bubble dynamics
title_fullStr On the dimensionless model of the transcription bubble dynamics
title_full_unstemmed On the dimensionless model of the transcription bubble dynamics
title_short On the dimensionless model of the transcription bubble dynamics
title_sort on the dimensionless model of the transcription bubble dynamics
topic transcription bubble
nonlinear dna model
kinks
mclaughlin-scott equation
kink trajectories
url https://www.aimspress.com/article/doi/10.3934/biophy.2023013?viewType=HTML
work_keys_str_mv AT larisaakrasnobaeva onthedimensionlessmodelofthetranscriptionbubbledynamics
AT ludmilavyakushevich onthedimensionlessmodelofthetranscriptionbubbledynamics