filaments

Jasplakinolide(Jaspamide), a naturally occurring cyclic peptide from marine sponges, is a potent inducer of actin polymerization.Jasplakinolide exhibits antifungal and antitumor activity and stabilizes pre-existing actin filaments. Jasplakinolide competitively binds to F-actin with the ghost pen cyclic peptide and has a Kd value of 15 nM for F-actin.

Cytochalasin H ((16-Benzyl-5,12-dihydroxy-5,7,14-trimethyl-13-methylidene-18-oxo-17-azatricyclo[9.7.0.01,15]octadeca-3,9-dien-2-yl) acetate) is a potent inhibitor of actin incorporation into filaments.

Cytochalasin E is a potent actin depolymerization agent and an epoxide containing Aspergillus-derived fungal metabolite. Cytochalasin E also inhibits angiogenesis and tumor growth. It binds and caps the barbed end of actin filaments to prevent actin elong

Swinholide A is a polyketone compound that can be extracted from sponges and binds to actin to dimerize actin with Kd of about 50 nM. Swinholide A is a cytotoxin that stabilizes actin dimers and severs actin filaments. Swinholide A has antifungal activity and can damage the actin cytoskeleton of cells.

Cytochalasin B is a mycotoxin binding to the barbed end of actin filaments. It can disrupt the formation of actin polymers (Kd: 1.4-2.2 nM for F-actin).