Modeling transport of extended interacting objects with drop-off phenomenon.

We study a deterministic framework for important cellular transport phenomena involving a large number of interacting molecules called the excluded flow of extended interacting objects with drop-off effect (EFEIOD). This model incorporates many realistic features of biological transport process incl...

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Main Authors: Aditi Jain, Arvind Kumar Gupta
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2022-01-01
Series:PLoS ONE
Online Access:https://doi.org/10.1371/journal.pone.0267858
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author Aditi Jain
Arvind Kumar Gupta
author_facet Aditi Jain
Arvind Kumar Gupta
author_sort Aditi Jain
collection DOAJ
description We study a deterministic framework for important cellular transport phenomena involving a large number of interacting molecules called the excluded flow of extended interacting objects with drop-off effect (EFEIOD). This model incorporates many realistic features of biological transport process including the length of biological "particles" and the fact that they can detach along the biological 'tracks'. The flow between the consecutive sites is unidirectional and is described by a "soft" simple exclusion principle and by repelling or attracting forces between neighboring particles. We show that the model admits a unique steady-state. Furthermore, if the parameters are periodic with common period T, then the steady-state profile converge to a unique periodic solution of period T. Simulations of the EFEIOD demonstrate several non-trivial effects of the interactions on the system steady-state profile. For example, detachment rates may help in increasing the steady-state flow by alleviating traffic jams that can exist due to several reasons like bottleneck rate or interactive forces between the particles. We also analyze the special case of our model, when there are no forces exerted by neighboring particles, and called it as the ribosome flow model of extended objects with drop-off effect (RFMEOD), and study the sensitivity of its steady-state to variations in the parameters.
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spelling doaj.art-80bc60642c9641ce8240b05fc58b5d202022-12-22T03:01:42ZengPublic Library of Science (PLoS)PLoS ONE1932-62032022-01-01175e026785810.1371/journal.pone.0267858Modeling transport of extended interacting objects with drop-off phenomenon.Aditi JainArvind Kumar GuptaWe study a deterministic framework for important cellular transport phenomena involving a large number of interacting molecules called the excluded flow of extended interacting objects with drop-off effect (EFEIOD). This model incorporates many realistic features of biological transport process including the length of biological "particles" and the fact that they can detach along the biological 'tracks'. The flow between the consecutive sites is unidirectional and is described by a "soft" simple exclusion principle and by repelling or attracting forces between neighboring particles. We show that the model admits a unique steady-state. Furthermore, if the parameters are periodic with common period T, then the steady-state profile converge to a unique periodic solution of period T. Simulations of the EFEIOD demonstrate several non-trivial effects of the interactions on the system steady-state profile. For example, detachment rates may help in increasing the steady-state flow by alleviating traffic jams that can exist due to several reasons like bottleneck rate or interactive forces between the particles. We also analyze the special case of our model, when there are no forces exerted by neighboring particles, and called it as the ribosome flow model of extended objects with drop-off effect (RFMEOD), and study the sensitivity of its steady-state to variations in the parameters.https://doi.org/10.1371/journal.pone.0267858
spellingShingle Aditi Jain
Arvind Kumar Gupta
Modeling transport of extended interacting objects with drop-off phenomenon.
PLoS ONE
title Modeling transport of extended interacting objects with drop-off phenomenon.
title_full Modeling transport of extended interacting objects with drop-off phenomenon.
title_fullStr Modeling transport of extended interacting objects with drop-off phenomenon.
title_full_unstemmed Modeling transport of extended interacting objects with drop-off phenomenon.
title_short Modeling transport of extended interacting objects with drop-off phenomenon.
title_sort modeling transport of extended interacting objects with drop off phenomenon
url https://doi.org/10.1371/journal.pone.0267858
work_keys_str_mv AT aditijain modelingtransportofextendedinteractingobjectswithdropoffphenomenon
AT arvindkumargupta modelingtransportofextendedinteractingobjectswithdropoffphenomenon