Presented at The 1st Lucian Blersch Symposium on Advances in Science through Mathematics

February 16, 2001, St. Edward's University, Austin, Texas


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Table of Contents

Post Genomic-era: Mathematical Modeling in Biology

Outline

The Central Dogma of Modern Molecular Biology

What is a Macromolecule?

Nylons 66 (Polyamides)

DNA & RNA

DNA and Its Bases

DNA Base Paring

Baseparing and Hydrogen Bond

DNA Double Helix

Watson-Crick's Law of Base-Paring

A. Einstein

Einstein's Law of Energy and Mass Conversion

The Nature Paper

A structure for deoxyribose nucleic acid

DNA Replication and the secrete of Life

F.H.C. Crick & J.D. Watson

Rosalind Franklin (1920 - 1958)

In Watson's own words

The book

The Central Dogma of Molecular Biology

Proteins and DNA

Protein Synthesis

Science and Mathematics

Models & Mathematical Modeling

Physics and Biology

Membrane Proteins, Channels

Protein and polypeptides

Protein Structures

Single Channel Conductance

E. Neher & B. Sakmann

Stochastic Nature of Single Molecules

Chemical reaction of a single molecule

From Discrete Markov Model to Continuous Diffusion

Brownian Motion (Diffusion) in a Continuous Energy Landscape

Quantitative Equation of Motion

Smoluchowski Equation, Markov Process & Chemical Kinetics

Neural Signaling and Action Potential

Potassium channel with subunits

Subunits are Helices

Crystal Structure

Diffusion and Electrodiffusion

Membrane Current and Voltages

A.L. Hodgkin & A.F. Huxley

Action Potential and Na+, K+ Currents

Stochastic Kinetics of Single Channel Opening-Closing

Voltage-dependent Channel Conductance

Fitting Experimental Data

Membrane as a Capacitor

Probabilities of Channel Openning

Voltage-dependence of Channel Kinetics (Hodgkin & Huxley, 1952)

Constants in the Hodgkin-Huxley Model

Membrane as a Capacitor

Simulating Action Potential I

Simulating Action Potential II

Phase Plot for Differential Equations

Conclusions

Law of Physics & Law of Biology

Two Books on Modeling

Author: Hong Qian

Email: qian@amath.washington.edu

Home Page: http://www.amath.washington.edu/~qian