Cytochalasin D is a cell permeable fungal toxin that binds to the barbed end of actin filaments inhibiting both the association and dissociation of subunits. This compound causes the disruption of actin filaments and inhibition of actin polymerization.
Synonyms: Zygosporin A, 3-Benzyl-3,3-alpha, 4, 5, 6, 6-alpha, 9, 10, 12, 15-Decahydro-6, 12, 15-Trihydroxy-4, 10, 12-Trimethyl-5-Methylene-1H-Cycloundec(d)isoindole-1, 11(2H) Dione, 15-Acetate
CAS Number: 22144-77-0
Molecular Formula: C30H37NO6
Molecular Weight: 507.6
Beilstein Registry Number: 1632828
EC Number: 244-804-1
MDL Number: MFCD00077706
Applications
Cytochalasin D possesses antibiotic and antitumor activity. It also impairs maintenance of long term potentiation (LTP) of actin filaments. It is implicated in promoting conditions favorable for depolymerizing actin.
Biochem/physiol Actions
Disrupts actin microfilaments and activates the p53-dependent pathways causing arrest of the cell cycle at the G1-S transition. Inhibits smooth muscle contraction. Inhibits insulin-stimulated, but not basal, transport of glucose.