9. Proteins A and B bind ligand C. Protein A binds C with a K, of 2 x 105 M-1. Protein B binds C with a K, of 3 µM. Which protein has a higher affinity for C. For protein B, what percent of C is bound at [C] = 6 µM?|

Biochemistry
9th Edition
ISBN:9781319114671
Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Chapter1: Biochemistry: An Evolving Science
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**Question 9:**

Proteins A and B bind ligand C. Protein A binds C with a \( K_a \) of \( 2 \times 10^5 \, \text{M}^{-1} \). Protein B binds C with a \( K_d \) of \( 3 \, \mu\text{M} \). Which protein has a higher affinity for C? For protein B, what percent of C is bound at \([C] = 6 \, \mu\text{M}?\)
Transcribed Image Text:**Question 9:** Proteins A and B bind ligand C. Protein A binds C with a \( K_a \) of \( 2 \times 10^5 \, \text{M}^{-1} \). Protein B binds C with a \( K_d \) of \( 3 \, \mu\text{M} \). Which protein has a higher affinity for C? For protein B, what percent of C is bound at \([C] = 6 \, \mu\text{M}?\)
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