Abstract
In Arabidopsis, ADO/FKF/LKP/ZTL protein family consists of three members: ADO1/LKP1/ZTL, ADO2/LKP2, and ADO3/FKF1. Each of these members contains three functional regions: the LOV domain, F-box motif, and kelch repeats. Recent studies indicated that ZTL is involved in the regulation of circadian rhythm via degradation of TOC1, a component of the central oscillator, and that FKF1 is involved in the regulation of flowering time by degradation of CDF1 protein, a negative regulator of CO gene expression. We show our recent results regarding LKP2, the last member of the ADO/FKF/LKP/ZTL protein family, and discuss its possible functions.
