AP2 — Capsicum annuum

Summary

CaAP2 (T459_26038) on pepper chromosome 10 encodes an ethylene-responsive transcription factor RAP2-7 with an AP2/ERF DNA-binding domain. The product exhibits sequence-specific DNA binding, transcription coactivator and corepressor activities, blue light photoreceptor activity, and protein homodimerization. CaAP2 is associated with regulation of floral organ abscission, seed development and abscission, starch biosynthesis, mannose and nucleotide metabolism, polyamine anabolism, photoentrainment of the circadian clock, and jasmonic acid/ethylene-dependent systemic resistance. It localizes to the nucleus, cytosol, nucleolus, Cajal body, SCF complex, and transcription regulator complex. The gene is linked to numerous traits including seed color, branch angle, photoperiod-sensitive flowering time, plant male sterility, salt response, aphid and insect damage response, trichome morphology, and starch grain synthesis.