Role of Proteins are given below
1) Proteins as Enzymes
2) Proteins as Hormones
examples:-
i) somatotropin >growth hormone
ii) insulin>control glucose metabolism)
3) Proteins as Hereditary Characters:
Chromatin material Made by nucleoprotein that Transport genetic information.
4) Proteins as Interferons:
Interferons are used to treat viral diseases ( hepatitis, encephalitis, cancer & common cold).
Interferons are regulatory glycoproteins
5) Proteins as Protection: Immunoglobulin (protective proteins)
Until injury, 2 blood proteins. i.e. (thrombin & fibrinogen) help in the Control of blood loss by the mechanism of blood clotting.
6) Proteins as Biochemical Individuality:
7 Transport:
example
i) The free fatty acid molecules are Surround to the serum albumin and get transported between adipose tissue & other body cells.
ii) Blood plasma consists of lipoproteins that transport lipids Between liver, adipose tissues, & intestine.
iii) Oxygen is transported from lungs to other tissue cells through haemoglobin in vertebrates & through haemocyanin in Few invertebrates.
v) Permeases, called as transport proteins.
8) Toxins:
Many proteins are extremely poisonous examples:- snake venom
ricin (protein of castor bean)
gossypin (protein of cotton seed), proteins of pathogenic bacteria (diphtheria toxin).
9) Contraction:
Proteins (actin & myosin) are responsible for the Contraction of all living tissues & skeletal muscles.
10) Movement:
(tubulin protein).
11) Proteins as Receptor:
12) Protein as Structural Material:
keratin sulphate (derivative of keratin protein).
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