Structure elucidation of supramolecular protein assemblies by solid-state NMR

In the last decade, magnetic resonance in the solid state (solid-state NMR) has emerged as a powerful technique in structural biology as it gives access to structural information for systems which are insoluble or do not crystallize easily. For example, functional filamentous assemblies such as the needle of the type three secretion system (T3SS) – composed of multiple copies of a single small protein – can be readily studied.