7(S),20(R)-Dihydroxy-16(R)-methyl-10-phenyl-24-oxa(14)cytochalasa-6(12),13(E),21(E)-trien-1,23-dion Chemische Eigenschaften,Einsatz,Produktion Methoden
R-S?tze Betriebsanweisung:
R26/27/28:Sehr giftig beim Einatmen, Verschlucken und Berührung mit der Haut.
R63:Kann das Kind im Mutterleib m?glicherweise sch?digen.
R23/24/25:Giftig beim Einatmen, Verschlucken und Berührung mit der Haut.
S-S?tze Betriebsanweisung:
S28:Bei Berührung mit der Haut sofort abwaschen mit viel . . . (vom Hersteller anzugeben).
S36/37:Bei der Arbeit geeignete Schutzhandschuhe und Schutzkleidung tragen.
S45:Bei Unfall oder Unwohlsein sofort Arzt zuziehen (wenn m?glich, dieses Etikett vorzeigen).
Chemische Eigenschaften
white to off-white powder
Verwenden
Cytochalasin B is one of the most extensively studied members of a family of potent mycotoxins produced by several species of fungi. All members of the class exhibit profound effects on cytoskeletal proteins, giving rise to pronounced morphogenic activity in animals and plants. Like most cytochalsins, cytochalasin B exhibits potent inhibition of actin filament function leading to cell death by apoptosis, and displays a broad range of resultant cellular actions. Despite the common mode of action, there is evidence that individual members of this class display diverse selectivity. However, lack of comparative co-metabolite analysis has restricted a more complete understanding of their individual selectivity.
Definition
ChEBI: An organic heterotricyclic compound, that is a mycotoxin which is cell permeable an an inhibitor of cytoplasmic division by blocking the formation of contractile microfilaments.
Allgemeine Beschreibung
Cytochalasin B is a cell-permeable fungal toxin / mycotoxin that binds to the ′barbed′ end of actin / actin filaments. This binding leads to:
- Disruption of actin filaments and of interaction of actin filaments in solution
- Inhibition of actin polymerization
- Inhibition of subunit association and dissociation
Cytochalasin B is widely used in studies of glucose transporters (GLUT). Cytochalasin B is also used as an integral part of various in vitro micronucleus assay protocols.
l?uterung methode
Purify it by MeOH extraction, reverse phase C18 silica gel batch extraction by selective elution with 1:1 v/v hexane/tetrahydrofuran, crystallisation, subjected to TLC and recrystallisation [Lipski et al. Anal Biochem 161 332 1987]. It is soluble in EtOH (3.6%), Me2CO (1%), Me2SO (37%) and Me2NCHO (49%) at 24o, and can be crystallised from the first two solvents. It interferes with cellular movement [Korm Physiol Reviews 62 672 1982].
7(S),20(R)-Dihydroxy-16(R)-methyl-10-phenyl-24-oxa(14)cytochalasa-6(12),13(E),21(E)-trien-1,23-dion Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
