MYC4 (AT4G17880) — Arabidopsis thaliana

Summary

AT4G17880 (MYC4) of Arabidopsis thaliana encodes a protein of the AIB/MYC-like family with bHLH and MYC/MYB_N domains, and is annotated with transcription coactivator and corepressor activities, as well as histone and SUMO binding. MYC4 is associated with jasmonate signaling pathways, including MYC-induced transcription of JA-induced genes and the JAZ/MYC/NINJA/TPL complex. The gene is associated with resistance to herbivory, regulation of defense response to insect, and induced systemic resistance via ethylene signaling. It is linked to regulation of glucosinolate biosynthetic process, chlorophyll a breakdown, seed growth, cell wall thickening, and cellular response to sulfur starvation. MYC4 is also associated with traits such as grain size, seed protein content, root hair density, and submergence tolerance, and is localized to the nucleus, plasmodesmata, and Golgi complex.