Glucose phosphorylation is a central event in cellular metabolism. ADP-dependent glucokinase (ADPGK) can phosphorylate glucose (Glc) using ADP as the phosphate donor to glucose 6-phopshate (G6P). To date, it has not been established whether this phosphorylation supports a significant role in priming glucose for a metabolic fate other than glycolysis (Richter et al. 2012). Stdies of metabolic changes during T cell activation suggest a role for it there (Kaminski et al. 2012).