生物活性: N-Acetylhexosamine kinase (NahK) is an anomeric kinase acting on a glucose-type substrate. N-Acetylhexosamine kinase catalyzes the phosphorylation of GlcNAc or GalNAc at the anomeric C1 position with ATP to form N-acetylhexosamine 1-phosphate (GlcNAc-1P/GalNAc-1P).