Probably participates in a plant defense mechanism (Probable). Active against Gram-negative bacteria E.coli ATCC 700926 (MIC=1.0 uM), K.pneumoniae ATTC 13883 (MIC=5.5 uM) and P.aeruginosa ATCC 39018 (MIC=7.5 uM) (PubMed:21596752). Has hemolytic and cytotoxic activity (PubMed:21596752). Expressed in flower, stem, shoot, root, leaf, seed, pod 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.