ABP — Zea mays

Summary

ZM00001EB137840 (ZmABP, ABP1) on maize chromosome 3 encodes a protein with an auxin-binding domain and RmlC-like cupin fold, annotated with ubiquitin-protein transferase activity, metal and protein binding. It is associated with auxin signalling, regulation of endocytosis, membrane docking, actin polymerization, microtubule dynamics, cell polarization, organ growth, and upregulation of DNA endoreduplication. The gene is linked to grain yield, harvest index, plant height, leaf angle, phyllotaxy, drought tolerance and sensitivity, water use efficiency, net photosynthetic rate, heterosis, and protein content. It is associated with auxin-induced growth response, cell expansion and elongation, root and embryo development, gravitropism, phototropism, flowering time, apical dominance, and clathrin-mediated endocytosis. The protein localises to the ER lumen and cytoplasm.