to Omo who disagreed with the description of adrenalin as a protein enzyme
Different functions of protein: see number 4
1 Structural protein: e.g. keratin
2 Enzyme and catalytic protein: e.g. pepsin
3 Transport protein: Hb, serum albuin
4 Hormonal protein: e.g. hormones as insulin, adrenalin
5 Contractile protein: e.g. actin and myosin
6 Storage protein: e.g. oval albumin, glutamin
7 Genetic protein: e.g. nucleic acid ( DNA & RNA)
8 Defence protein: e.g. Ig, snake venom
9 Receptor protein: hormones and viruses