C-Peptide, dog is a component of proinsulin, released from pancreatic beta cells into blood together with insulin. The C-peptide of proinsulin is important for the biosynthesis of insulin but has for a long time been considered to be biologically inert.

Fibronectin Adhesion-promoting Peptide (Heparin Binding Peptide) is one of the heparin-binding amino acid sequences found in the carboxy-terminal heparin-binding domain of fibronectin.

Neotame is a white-colored, dipeptide methyl ester, which is found to be a highly potent and non-nutritive sweetener or flavour enhancer and hence finds applications in a variety of foods.