Description
General description
Chemical structure: peptide
Valinomycin is a cyclic peptide, which contains d-valine, d-α-hydroxyvaleric acid, l-valine, and l-lactic acid in the sequential order of cyclo-[(l-Val-d-Hyv-d-Val-l-Lac)3].
Valinomycin, a nonribosomal peptide (NRP), is proposed to have a structure of a 24-membered cyclic peptide cyclo-(d-α-hydroxyisovaleryl-d-valyl-l-lactyl-l-valyl)2. It exhibits antitumor properties and plays a major role as a mitophagy activator. Initially isolated as an antibiotic compound, valinomycin has demonstrated antibacterial activity against Mycobacterium tuberculosis. Moreover, it has been identified as a potent antiviral agent against a wide spectrum of viruses, including human coronavirus, bunyavirus, enterovirus, and flavivirus.
Application
Valinomycin has been used:
to equilibrate intracellular pH and extracellular pH of 5 (and 6-)-carboxyfluorescein succinimidyl ester (cFSE) in Escherichia coli strain B23
as an ionophore to equilibrate intracellular pH and extracellular pH of lactic acid bacteria (LAB) strains
to establish the desired pH for acid-base transition and formation of K+-valinomycin diffusion potential
Biochem/physiol Actions
K+-selective ionophore which uncouples oxidative phosphorylation.
K+-selective ionophoric cyclodepsipeptide; potassium ionophore which uncouples oxidative phosphorylation, induces apoptosis in murine thymocytes, inhibits NGF-induced neuronal differentiation and antagonizes ET-induced vasoconstriction.
Valinomycin selectively transfers alkali metal ions via biological and synthetic membranes. The formation of a metal ion-peptide complex contributes to this ion-transporting. Valinomycin can create stable complexes with potassium, rubidium, and cesium (K+, Rb+, and Cs+) .
Packaging
10MG,25MG,100MG,500MG
Other Notes
Keep container tightly closed in a dry and well-ventilated place.
