Disulfide-Containing Detergents (DCDs) for the Structural Biology of Membrane Proteins.

Disulfide-containing detergents (DCDs) are introduced, which contain a disulfide bond in the hydrophobic tail. DCDs form smaller micelles than corresponding detergents with linear hydrocarbon chains, while providing good solubilization and reconstitution of membrane proteins. The use of this new class of detergents in structural biology is illustrated with solution NMR spectra of the human G protein-coupled receptor A2A AR, which is an α-helical protein, and the β-barrel protein OmpX from E. coli.