Probably participates in a plant defense mechanism. Has a weak hemolytic activity. The presence of a 'disulfide through disulfide knot' structurally defines those proteins as knottins. Proteolytically processed in two steps to yield first two linear precursors, and then two cyclic peptides after removal of the N-terminal repeats (NTR) and short tails. Tricyclon-A and tricyclon-B are hybrids of the Bracelet and Moebius subfamilies. Belongs to the cyclotide family.