The heat shock protein 90 (Hsp90) is a molecular chaperone that activates and maintains the biological functioning of several client proteins, many of which are associated with oncogenic signaling pathways.

Pentigetide is a sythsis pepetide (Asp-Ser-Asp-Pro-Arg or D-S-D-P-R), also know as “HEPP” for “Human IgE Pentapeptide”. Pentigetide can not produce IgE inhibition in several different systems, due to the aspartic acids in HEPP changed into an asparagine.

Aurantio-obtusin β-D-glucoside is a natural product originated from the enzymatic cleavage of its glucoside glucoaurantio-obtusin.