Biochemists uncover new rules of mitochondrial protein import
Graphical abstract. Credit: Cell (2025). DOI: 10.1016/j.cell.2025.07.021 Mitochondria are cellular organelles that play an important role in making ATP (adenosine triphosphate), the molecular fuel that powers most cellular functions. These organelles originated over a billion years ago when a primitive archaeal cell entered into a symbiotic relationship with an ancestral bacterium. Over time, mitochondria became