Probably participates in a plant defense mechanism. Expressed in pod but not in flower, stem, shoot, leaf, seed, root and nodule (at protein level). The presence of a 'disulfide through disulfide knot' structurally defines this protein as a knottin. Contains 3 disulfide bonds. This is a cyclic peptide. Belongs to the cyclotide family. Bracelet subfamily. This peptide is cyclic. The start position was chosen by similarity to cliotide T1 for which the DNA sequence is known.