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Mathematics of Molecular and Cellular Biology

Abstracts and Talk Materials:

Network Dynamics and Cell Physiology

April 17-18, 2008

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Daniel Forger (University of Michigan) , John J. Tyson (Virginia Polytechnic Institute and State University) http://mpf.biol.vt.edu/people/tyson/tyson.html

Computer Lab 1: Phase planes, vector fields, nullclines, bifurcations
Thu Apr 17 13:15:00 - 14:30:00

How to use WinPP and XPP. Models of bistability and oscillations. Drawing phase plane portraits. How portraits depend on parameter values. One-parameter bifurcation diagrams.

Daniel Forger (University of Michigan) , John J. Tyson (Virginia Polytechnic Institute and State University) http://mpf.biol.vt.edu/people/tyson/tyson.html

Computer Lab 2: Modeling exercises
Thu Apr 17 16:00:00 - 17:00:00

Building simple models of cell cycle, circadian rhythm, programmed cell death, glycolysis, Ca2+ oscillations, etc.

Daniel Forger (University of Michigan)

Lecture 4: Stochastic modeling of molecular regulatory networks
Fri Apr 18 09:00:00 - 09:00:00

Relation between stochastic and deterministic formalisms. Two discrete simulation methods proposed by Gillespie. 1/N relationship. Noise induced oscillations. Chemical Langevin equations and hybrid methods. Introduction to simulation packages.

Daniel Forger (University of Michigan)

Lecture 5: Models of circadian rhythms
Fri Apr 18 10:30:00 - 11:30:00

Basic properties of circadian clocks. Goodwin and early models. More realistic models. Model predictions and their experimental validation. Temperature Compensation. Unanswered questions.

Daniel Forger (University of Michigan) , John J. Tyson (Virginia Polytechnic Institute and State University) http://mpf.biol.vt.edu/people/tyson/tyson.html

Computer Lab 3: Stochastic Simulation
Fri Apr 18 13:15:00 - 14:30:00

Simulations of simple models of genetic networks using the Gillespie Method. Comparison of behavior for small and large number of chemical events.

Daniel Forger (University of Michigan)

Lecture 6: Synchronization and phase resetting
Fri Apr 18 15:00:00 - 16:00:00

Phase Response Curves, Phase Transition Curves and Winfree’s Type 0 vs. Type 1 distinction. Global vs. local coupling. Pulse vs. sustained coupling. Coupling induced rhythmicity. Relationship between phase resetting and coupling.

John J. Tyson (Virginia Polytechnic Institute and State University) http://mpf.biol.vt.edu/people/tyson/tyson.html

Lecture 1: Cell physiology, molecular biology and mathematical modeling
Thu Apr 17 09:00:00 - 10:00:00

An introduction to cell growth and division, programmed cell death, cell differentiation, motility, and signaling. Basic molecular mechanisms governing these processes. Modeling molecular mechanisms with ordinary differential equations.

John J. Tyson (Virginia Polytechnic Institute and State University) http://mpf.biol.vt.edu/people/tyson/tyson.html

Lecture 2: Network motifs: sniffers, buzzers, toggles and blinkers
Thu Apr 17 10:30:00 - 11:30:00

Simple models of regulatory motifs. Positive and negative feedback. Signal-response curves and bifurcation diagrams. Adaptation. Ultrasensitivity. Bistability and oscillations. Simple bifurcations: saddle-node and Hopf. Homoclinic bifurcations.

John J. Tyson (Virginia Polytechnic Institute and State University) http://mpf.biol.vt.edu/people/tyson/tyson.html

Lecture 3: Cell cycle regulation
Thu Apr 17 15:00:00 - 16:00:00

Physiological characteristics of the cell division cycle. Molecular biology of cyclin-dependent kinases. Simple model of bistability and oscillations in the CDK control system of frog eggs. More complex models of yeast cell cycles. Mammalian cell cycle and cancer.