Behavioral variability and phenotypic diversity in bacterial chemotaxis

AJ Waite, NW Frankel, T Emonet - Annual review of biophysics, 2018 - annualreviews.org
Living cells detect and process external signals using signaling pathways that are affected
by random fluctuations. These variations cause the behavior of individual cells to fluctuate …

[图书][B] Stochastic processes in cell biology

PC Bressloff - 2014 - Springer
One of the major challenges in modern biology is to understand how the molecular
components of a living cell operate in a highly noisy environment. What are the specific …

Size limits the sensitivity of kinetic schemes

JA Owen, JM Horowitz - Nature Communications, 2023 - nature.com
Living things benefit from exquisite molecular sensitivity in many of their key processes,
including DNA replication, transcription and translation, chemical sensing, and …

Physical limit to concentration sensing in a changing environment

T Mora, I Nemenman - Physical review letters, 2019 - APS
Cells adapt to changing environments by sensing ligand concentrations using specific
receptors. The accuracy of sensing is ultimately limited by the finite number of ligand …

Spectral theory of fluctuations in time-average statistical mechanics of reversible and driven systems

A Lapolla, D Hartich, A Godec - Physical Review Research, 2020 - APS
We present a spectral-theoretic approach to time-average statistical mechanics for general,
nonequilibrium initial conditions. We consider the statistics of bounded, local additive …

A mechanism for hunchback promoters to readout morphogenetic positional information in less than a minute

J Desponds, M Vergassola, AM Walczak - Elife, 2020 - elifesciences.org
Cell fate decisions in the fly embryo are rapid: hunchback genes decide in minutes whether
nuclei follow the anterior/posterior developmental blueprint by reading out positional …

Receptor crosstalk improves concentration sensing of multiple ligands

M Carballo-Pacheco, J Desponds, T Gavrilchenko… - Physical Review E, 2019 - APS
Cells need to reliably sense external ligand concentrations to achieve various biological
functions such as chemotaxis or signaling. The molecular recognition of ligands by surface …

Computational methods and diffusion theory in triangulation sensing to model neuronal navigation

U Dobramysl, D Holcman - Reports on Progress in Physics, 2022 - iopscience.iop.org
Computational methods are now recognized as powerful and complementary approaches in
various applied sciences such as biology. These computing methods are used to explore …

Learning optimal integration of spatial and temporal information in noisy chemotaxis

A Alonso, JB Kirkegaard - PNAS Nexus, 2024 - academic.oup.com
We investigate the boundary between chemotaxis driven by spatial estimation of gradients
and chemotaxis driven by temporal estimation. While it is well known that spatial chemotaxis …

How receptor surface diffusion and cell rotation increase association rates

SD Lawley, CE Miles - SIAM Journal on Applied Mathematics, 2019 - SIAM
Many biological processes are initiated when diffusing extracellular reactants reach
receptors on a cell membrane. Calculating this arrival rate has therefore attracted theoretical …