<unk>  (also called H-D or H/D<unk>  is a chemical reaction in which a covalently bonded<unk>  atom is replaced by a<unk>  atom, or vice versa. Usually the examined protons are the amides in the backbone of a protein. The method gives information about the solvent accessibility of various parts of the molecule, and thus the tertiary structure of the protein.
Hydrogen-deuterium exchange
Exothermic reaction
Ammonia production
Glucuronidation
Carboxylation
Organic redox reaction
Ethanol fermentation
Edman degradation