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This course provides an overview of chemical kinetics and computational modeling, exploring the role of mathematics in biology and the dynamics of chemical reactions. Topics include the central dogma of molecular biology, transcription, translation, and modeling activator binding and mRNA production.
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Introduction to Chemical Kinetics and Computational Modeling Hana El-Samad Byers Hall (QB3), Rm 403D
Why mathematics in biology? input output Given some initial concentrations, what is output give some prescribed input?
Molecule A Molecule B Chemical reactions are collisions of molecules
Reactant A time Molecule A
t2 Change in Concentration: DA= A2-A1 A1 Reactant A A2 t1 time Change in time: Dt=t2-t1 Average rate of change in concentration during time Dt=
Derivative of A with Respect to time Change in Concentration: DA= A2-A1 A1 A2 Reactant A t1 t2 instantaneous rate of change in concentration during time dt=
Concentration of A Rate of change of A Degradation constant
Concentration of A Rate of change of A Concentration of D Production constant Degradation constant
Production of A balances degradation A is constant Reaching steady-state (equilibrium) Steady-state: No more change in A
Chemical Reactions inside the cellCentral Dogma of Molecular Biology
start end gene promoter terminator Transcription Transcription factor DNA
mRNA Translation Proteins mRNA ribosomes
start end gene promoter terminator Modeling activator binding and production of mRNA Fast slow
Fast but
start end gene promoter terminator Cooperativity
start end gene promoter terminator Cooperativity n molecules
start end gene promoter terminator Repressor