PME — Solanum tuberosum

Summary

StPME (PGSC0003DMG400046641) on potato chromosome 10 encodes a pectinesterase with pectinesterase catalytic and pectin lyase fold domains. The enzyme possesses pectinesterase activity and is also annotated with pectinesterase inhibitor and enzyme inhibitor activities. StPME is associated with pectin metabolism and breakdown, cell wall modification and thickening, wound healing, fruit ripening, cell cycle, and cell division. The gene has been linked to amylose content, heterosis, lignin content, stem elongation, and photosynthetic rate. Studies of related genes in other species connect the pectinesterase family to fruit firmness, fruit color, fruit weight and size, sugar and lycopene content, cellulose content, chlorophyll content, root length, turgor pressure, and cytoplasmic male sterility.