A Solution Containing Proteins of a Particular Type Is Exposed to the Same

question 100

Multiple Choice

A solution containing proteins of a particular type is exposed to the same concentrations of ligands X and Y,but the percent saturation of molecule X is greater than the percent saturation of molecule Y.Which is most likely to be a true statement?

• A)The binding sites for ligand X are 100% saturated.
• B)The binding sites for ligand X have greater specificity than the binding site for ligand Y. 
• C)Ligand X must be a competitive inhibitor of ligand Y.
• D)Both ligands must bind to the same binding site on the protein.
• E)The protein has a higher affinity for ligand X than for ligand Y.

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