Question

What are conjugated proteins ?

Answer 1

A conjugated protein is a protein that functions in interaction with other chemical groups attached by covalent bonding or weak interactions. Many proteins contain only amino acids and no other chemical groups, and they are called simple proteins

Answer 2

Answer:

Conjugated proteins are formed by the

binding of a simple protein with a non-

protein called the Prosthetic Group,

(nucleoproteins have nucleic acid as

prosthetic group).

Many highly complex proteins consist of

an aggregation of polypeptide chains held

together by hydrophobic interactions and

hydrogen and ionic bonds. Their precise

arrangement constitutes the quaternary

structure.

The conjugated proteins are of following

types:

(a) Nucleoproteins (prosthetic group

– nucleic acid) e.g., Protamines

(b) Metalloproteins (prosthetic group

- metal) e.g., Ferritin

(c) Chromoproteins (prosthetic group

– pigment) e.g., Cytochromes

(d) Phosphoproteins (prosthetic

group – phosphoric acid) e.g., Casein of

milk.

(e) Lipoproteins (prosthetic group -

lipids) e.g., chylomicron.

(f) Glycoproteins (prosthetic group -

carbohydrates) e.g., Mucin