The effect of deuteration on protein structure: a high-resolution comparison of hydrogenous and perdeuterated haloalkane dehalogenase

A comparison of hydrogenous and perdeuterated haloalkane dehalogenase shows similar overall structures with only slight alterations in surface regions. However, perdeuteration causes exclusion of a critical water nucleophile from the active site leading to a structure of an inactive, low pH enzyme form.

Neutron and X-ray structural studies of short hydrogen bonds in photoactive yellow protein (PYP)

The complete structure (including H atoms) of photoactive yellow protein has been determined in D₂O-soaked crystals through the application of joint X-ray (1.1 Å) and neutron (2.5 Å) structure refinement in combination with cross-validated maximum-likelihood simulated annealing.