Biochemistry 2280A Lecture Notes - Lecture 4: Protein Domain, Protein Folding, Motor Protein
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22 Apr 2022
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2. Just like chemical reactions, protein conformational changes are bidirectional. Motor proteins are able to move in one direction by making coordinated conformational changes through the use of ATP. Why does this allow unidirectional movement instead of random walking?
A. ATP hydrolysis releases a charged phosphate which is used to push the motor protein. | |
B. The negatively charged phosphates of ATP electrostatically pull the motor proteins. | |
C. Coupling ATP hydrolysis to one conformational change means that the reverse conformational change would require a large energy input. | |
D. Coupling ATP hydrolysis to the +Ć¢ĀĀG conformational changes allows the reaction to proceed. |