High-resolution NMR of biological solids.
Solid-state NMR experiments have recently provided a number of biochemical insights: motionally averaged 2H lineshapes have shown that the motion of a backbone loop protecting a protein binding site is not ligand gated; isotropic 13C chemical shifts of freeze-quenched enzyme-ligand intermediates have revealed mechanistic details of reaction pathways; multiple heteronuclear distance determinations have characterized the binding-site geometry of a 46 kDa noncrystalline enzyme complex; and homonuclear recoupling experiments have established that insoluble amyloid fibrils form a pleated beta sheet.
McDowell
L M
LM
Department of Chemistry, Washington University, St Louis, MO 63130, USA.
Schaefer
J
J
D000818:Animals; D006801:Humans; D009682:Magnetic Resonance Spectroscopy / Q000379:methods*; D011487:Protein Conformation; D011506:Proteins / Q000737:chemistry*
D011506:Proteins