Xenopsin TFA is a neurotensin-like octapeptide derived from the skin of xenopus xenopus.Xenopsin TFA is an inhibitor of tetrachloroside to stimulate gastric acid secretion.

Protein Kinase C Peptide Substrate targets specific cell spacers ina manner that is dependent on second messengers and specific adaptor proteins in response to extracellular signals that activate g protein-coupled receptors, tyrosine Kinase receptors, or tyrosine kinase-coupled receptors.

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.