Enzyme committing glucose to metabolism: glucose + ATP → glucose-6-P + ADP. Isoforms: hexokinase (muscle, K_M ≈ 0.1 mM), glucokinase (liver/β-cell, K_M ≈ 10 mM, no product inhibition).
Enzyme committing glucose to metabolism: glucose + ATP → glucose-6-P + ADP. Isoforms: hexokinase (muscle, K_M ≈ 0.1 mM), glucokinase (liver/β-cell, K_M ≈ 10 mM, no product inhibition).