Repressor of jasmonate responses. Interacts with COI1A (PubMed:21332845). Interacts with COI1A and COI1B in a coronatine-dependent manner. Coronatine is an analog of jasmonoyl isoleucine (JA-Ile) (PubMed:23320078). Expressed in roots, shoots, leaf sheaths and leaf blades. By methyl jasmonate (MeJA) (PubMed:21332845). Induced by drought and salt stresses (PubMed:19618278). The jas domain (335-359) is required for interaction with COI1. Ubiquitinated. Targeted for degradation by the SCF(COI1) E3 ubiquitin ligase-proteasome pathway during jasmonate signaling. Belongs to the TIFY/JAZ family.