Phosphoenolpyruvic acid monopotassium salt is involved in glycolysis and gluconeogeneis. In glycolysis PEP is metabolized by Pyruvate Kinase to yield pyruvate. In plants PEP is involved in the formation of aromatic amino acids as well as in the carbon fixation pathway.

N-trans-Feruloylputrescine is an alkaloid that can be isolated from Magnolia officinalis.

Histatin 5 TFA inhibits the activity of the host matrix metalloproteinases MMP-2 and MMP-9 with IC50s of 0.57 and 0.25 μM, respectively.