Soluble in ammonia, water, dilute acid Strongly basic in reaction
Protamines
Serum albumin
albumin
egg white
albumin
Serum globulin
globulin
Glutenin (wheat)
glutelins
Zein (corn)
prolamines
Keratin (hair, hooves)Elastin (tendon, artery)
Albuminoids
Gliadin (wheat)
Prolamines
Collagen (skin, tendon)
Albuminoids
Salmin and sturin (fish sperm)
Protamines
Thymus histone
Histones
Phosphoric acid / phosphate group
Phosphoproteins
Nucleic acid
Nucleoproteins
Heme unit
Chromoproteins / Hemoproteins
Carbohydrate group
Glycoprotein
Lipids
Lipoproteins
Metals
Metalloproteins
Nuclein (cell nuclei)
Nucleoproteins
Casein (milk)
Phosphoproteins
Mucin (vitreous humor & saliva
Glycoprotein