Does accumulation of #macromolecules in the highly protein-rich #mitochondrial matrix regulate solute diffusion and biochemical reactions?
Using FRAP analysis of #organelle-targeted fusion peptides, Werner Koopman and colleagues report macromolecular crowding as a stress-dependent determinant of matrix mobility and viscosity

https://www.embopress.org/doi/10.15252/embj.2021108533