Consider the Following Interaction Between a Protein and Its Ligand $\harr$

question 53

Multiple Choice

Consider the following interaction between a protein and its ligand: [P] + [L] $\harr$ [PL]. If [L] = 5 mM, [P] = 3 mM, and [PL] = 2 mM, what is the Ka for the interaction?

• A) 7.5 mM
• B) 15 mM
• C) 0.133 mM
• D) 0.4 mM

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