Protein import into a mitochondrion
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Protein import into a mitochondrion
A signal sequence at the tip of a protein recognizes a receptor protein on the outer mitchondrial membrane. This causes diffusion of this tethered protein through the membrane to a contact site. When there, the receptor protein hands off the tethered protein to the translocator protein, which channels the unfolded protein past both the inner and outer mitochondrial membranes.
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Mitochondria are fascinating structures that create energy to run the cell. Learn how the small genome inside mitochondria assists this function and how proteins from the cell assist in energy production.
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