Fig. 2

The HBP is at the center of many cancer processes. The HBP is highly dependent on the nutrient state of a cell, as is evident from its heavy dependence on dietary molecules like glucose and glutamine as well as other metabolic pathways such as nucleotide and fatty acid metabolism. The highlighted substrate UDP-GlcNAc plays a key role in orchestrating many downstream glycosylation events that in turn control proteins and processes involved in cell signaling, metabolism, gene regulation, and EMT