Melanin Concentrating Hormone (MCH), a 19 amino acid cyclic peptide, is largely expressed in the hypothalamus. Melanin Concentrating Hormone is implicated in the control of general arousal and goal-orientated behaviours in mammals, and appears to be a key messenger in the regulation of food intake.

Elastase from porcine pancreas is a single polypeptide chain of 240 amino acid residues.

Lophine can be used in the synthesis of protein kinase inhibitors, calcium antagonists, strong Chemicalbook cardiac agents, and antitumor drugs.