Classification of protein

A. Simple protein:

a) Albumin : Serum albumin , Egg albumin, Lactal albumin

b) Globulin: Serum globulin, Tissue globulin and vegetable globulin

c) Prolamins : Zien ( from maize), Gliadin ( from wheat), and Hordein ( from Barley)

d) Glutelin : Glutenin ( from wheat) and Oryzenin ( from rice)

e) Scleroprotein: Keratin, Fibronin, Collagen and Elastin

B. Conjugated protein:

a) Nucleoprotein: DNA and RNA

b) Chromoprotein  Chlorophyll and Hemoglobin

c) Glycoprotein

d) Lipoprotein: Lecithin and cephalin

e) Metalloprotein: Hemoglobin and chlorophyll

C. Derived protein:

a) Peptone

b) Peptide

c) Proteases