Organic compounds that are tightly bound to a | vedclass

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(A) The catalytic activity of many enzymes is dependent on the presence of certain non-protein constituents called cofactors. Cofactors are of three t

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Prosthetic group

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(A) The catalytic activity of many enzymes is dependent on the presence of certain non-protein constituents called cofactors. Cofactors are of three types: $1$. Prosthetic groups: These are organic compounds that are tightly bound to the apoenzyme (the protein portion of the enzyme). For example,heme is a prosthetic group in peroxidase and catalase. $2$. Co-enzymes: These are organic compounds that are loosely bound to the apoenzyme. Their association with the apoenzyme is usually transient,occurring during the course of catalysis. $3$. Metal ions: These are inorganic cofactors that form coordination bonds with side chains at the active site and at the same time form one or more coordination bonds with the substrate,e.g.,$Zn^{2+}$ in carboxypeptidase. Therefore,organic compounds that are tightly bound to the apoenzyme are called prosthetic groups.

Organic compounds that are tightly bound to apoenzyme are known as:

Similar Questions

The $..........$ type of cofactor is tightly bound to the apoenzyme, whereas the $.........$ type of cofactor is loosely bound to the apoenzyme.

An organic substance bound to an enzyme and essential for its activity is called

What is the prosthetic group in the structure of an enzyme composed of?

$P$ - Statement: $FMN$ is a coenzyme.
$Q$ - Statement: $A$ coenzyme is a non-protein part of an enzyme.

What is the relative size of co-factors compared to the apoenzyme?

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