Glyceraldehyde-3-phosphate dehydrogenase catalyzes the conversion of glyceraldehyde-3-phosphate to 1,3-bisphosphoglycerate as part of glycolysis. It has also been shown to have roles in initiation of apoptosis, transcription activation and the shuttling of ER to Golgi vesicles.http://www.creative-enzymes.com/product/Native-Bakers-Yeast-S-Cerevisiae-Glyceraldehyde3phosphate-Dehydrogenase_1208.html