PROTEIN STRUCTURE

Proteins ( polypeptides )
- monopeptides
- dipeptides
- tripeptides
- polypeptides

Simple proteins
- albumin
  - egg albumin
  - lactalbumin
  - myalbumin
  - serum albumin
- Globulin
- Glutelin
  - present in cereals
- Prolamines or gliadins
- Scleroprotein or albuminoids
- Histones
- Protamine
Conjugated Proteins
- Nucleoprotein
- Phosphoprotein
  - casein of milk
  - vitellin of egg
- Mucoprotein and glycoprotein
- Lipoprotein
- Metalloprotein
- Chromoprotein
  - hemoglobin
  - melanoprotein
  - flavoprotein
  - cytochrome
  - chlorophyll
Derived proteins
- primary derivatives
- secondary derivatives
  - proteoses
  - peptones
  - peptides
  - diketopiperazines