EF1A — Solanum tuberosum

Summary

PGSC0003DMG400020772 (StEF1A) on potato chromosome 6 encodes a translation elongation factor 1-alpha, a GTP-binding protein with GTPase activity that also possesses SUMO transferase activity and SUMO binding. This gene is associated with a wide range of biological processes including response to biotic stimulus, detection of virus, downregulation of photosynthesis, cell wall thickening, secondary growth, and sucrose and flavonoid metabolism. It has been linked to numerous agronomically important traits such as drought tolerance, photosynthetic rate, quantum yield, starch content, reducing sugar content, anthocyanin content, chlorophyll content, flowering time, and abscisic acid sensitivity. The protein localizes to multiple cellular compartments including the cytosol, chloroplast stroma, mitochondria, vacuole, nucleolus, and plasmodesmata. Related genes in other species link the family to viral resistance, defense gene expression, and stomatal aperture regulation.