Perisulfakinin

CAS: 125131-58-0

Ref. 3D-FP108348

Product Information

• Name: Perisulfakinin
• Synonyms: H-Glu-Gln-Phe-Asp-Asp-Tyr(SO3H)-Gly-His-Met-Arg-Phe-NH2
• Brand: Biosynth
• Description: Perisulfakinin (PSK) is a cyclic peptide that has been isolated from the venom of the fly Phera insolita. PSK has a high affinity for protease activity and can be used as an inhibitor of proteases in control experiments. PSK is also an activator of cation channels and may be used as a neurotransmitter or neuromodulator in insects. The PSK peptide is present in dipteran species and can be seen by electron microscopy in their abdominal ganglia. PSK also activates Ca2+ influx into cells, which can lead to cell death. The PSK peptide is converted to cleavage products by enzymes, with bioassays being one way to measure these products.

Chemical properties

• Molecular weight: 1,523.61 g/mol
• Formula: C₆₄H₈₆N₁₈O₂₂S₂
• Purity: Min. 95%