Structure, Function and Regulatory Mechanism of COPT in Plants
HE Lifei1, ZHOU Zhongle1, MA Chunjie1, WANG Haiying2, ZHANG Haiyan1 *
Mineral ion absorption and transport depends on transporters in plants. To maintain ion availability and avoid excessive ion accumulation, the abundance and activity of ion transporters are tightly regulated. COPT (copper transporter) contains distinct structural characteristics and unique subcellular localization, and plays a key role in copper uptake, endogenous immunity and symbiotic nitrogen fixation in plants. In this review, the structural characteristics, biological function and regulatory mechanism of COPT protein were reviewed, providing a reference for revealing the mechanism of copper homeostasis and improving varieties in plants.