Fig. 3
From: Direct visualization of critical hydrogen atoms in a pyridoxal 5′-phosphate enzyme
Neutron structure of the external aldimine. a External aldimine state in the AAT-α-methylaspartate neutron structure. b Close-up of the D atom that is equidistant between the NSB and carboxylate oxygen. c External aldimine and the catalytic base, K258. For clarity, the omit |F o|−|F c| difference nuclear scattering map is presented for the deuterium atom on PLA
