You are interested in bacterial cell cycle control and you have noticed that one
ID: 598392 • Letter: Y
Question
You are interested in bacterial cell cycle control and you have noticed that one particular strain of bacteria can adjust its cell cycle based on temperature in a much more sensitive way than most other bacteria you have studied. You have isolated a protein that you think is responsible for this effect, as well as a small molecule (called Q) that binds to this protein. To try and understand how this protein is involved in thermal sensing, you run the following thermal melt on a sample of the purified protein in the presence and absence of ligand Q. a) Derive an expression that explains what effect ligand Q has on the protein, assuming that the ligand can only bind to the native state of the protein.
Explanation / Answer
The ligand Q has an exponential effect on the unfolding of the ligand . So the expression can be given as. Fraction Unfolded = e^x where x is the amount of Q ligand used.
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