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Question

Enzymes with two sites are called [AIIMS 2002]


A

Apoenzyme

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B
Holoenzyme
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C

Allosteric enzyme

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D

Conjugate enzyme

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Solution

The correct option is C

Allosteric enzyme


Allosteric enzymes are enzymes that change their conformational ensemble when they bind with an effector. This results in an apparent change in binding affinity at a different ligand binding site.
These enzymes have multiple protein subunits. Ligands that bind to allosteric enzymes and affect binding at a different site on the enzyme are known as effectors.


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