High-resolution NMR spectroscopy of proteins in intact mitochondria.

High-resolution NMR spectroscopy can be used to observe proteins within intact mitochondria, revealing detailed molecular interactions and stability at atomic resolution.

• Why it matters: Understanding protein behavior inside mitochondria is crucial for elucidating mechanisms of cellular energy, stress responses, and disease, but has been limited by technical challenges in studying proteins in their native environment.
• What they did: The authors developed a method to deliver proteins into isolated mitochondria via electroporation and used NMR to investigate α-synuclein interactions, post-translational modifications, GB1 stability, and dimerization within mitochondria.
• The result: This approach provides quantitative insights into mitochondrial protein function and environmental effects, enabling more comprehensive studies of mitochondrial biomolecular events and their roles in health and disease.