NigericinisapolyetherantibioticproducedbyStreptomyces,notablyS.hygroscopicus,isolatedinthe1950s.Itscomplexstructurewasfinallyelucidatedin1968.Althoughnigericincanbeisolatedasthefreeacid(underacidicconditions),likemostionophoresitisextractedintoorganicsolventsandismostconvenientlyisolatedasasalt.Invitro,nigericinhasbroad
BIOLOGicalactivityagainstGrampositivebacteria,fungi,tumorcelllinesandsomeviruses,includingHIV.Nigericinisthemostcommonmemberofthepolyetherclasswhicharecommonfalsepositivesininvitroscreeningbioassaysusingcrudemicrobialextracts.Theyarethusimportantstandardsfordereplication.
Nigericinissolubleinethanol,methanol,DMForDMSO.Poorwatersolubility.
CASNumber
28380-24-7
MolecularFormula
C40H68O11
MolecularWeight
724.9
MechanismofAction
Nigericinisanionophore,possessingveryhighaffinityformonovalentcationssuchasNa+andK+.NigericindisruptsmembranepotentialandGolgiapparatusinmitochondria.
StorageConditions
-20°C
Specifications: