A regulatory protein is present at a concentration of in an Escherichia coli cell of…
PHYSICS · Multi-part · Fermi University Physics · Mathematical Methods for Physics · Biophysics & Medical Physics · Genetic circuits, regulation and biological information
Forces, Machines and Signals, Ch Numbers and noise in a small system
Problem
A regulatory protein is present at a concentration of 5nM in an Escherichia coli cell of volume 1fL. Treat its copy number in a single cell as a Poisson random variable with mean nˉ=cNAV.
((a)) Find nˉ.
((b)) Find the percentage of cells with zero copies, exactly one copy, and two or more copies.