Chassatide C2: Probably participates in a plant defense mechanism (Probable). Has no activity against bacteria up to a concentration of 80 uM (PubMed:22467870). Has cytotoxic but no hemolytic activity (PubMed:22467870). Chassatide C2A: Probably participates in a plant defense mechanism (Probable). Has no activity against bacteria up to a concentration of 80 uM (PubMed:22467870). Has no cytotoxic and no hemolytic activity (PubMed:22467870). Expressed in fruit, pedicel and stem but not in leaf and root (at protein level). The presence of a 'disulfide through disulfide knot' structurally defines this protein as a knottin. This is a cyclic peptide. Chassatide chaC2A. Belongs to the cyclotide family. Bracelet subfamily.