Keratin of skin is softer than keratin in nail because keratin in skin has
Keratin in skin is softer than keratin in nail, horns because of lesser disulphide linkages between cysteine residues Ref: Biochemistry by U. Satyanarayana 3rd edition Pgno : 489
Less number of disulphide bridges
Less number of salt bridges
High sodium content
Different affinity for water
Structure and function of protein