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which of the following is not required for the transport of a protein into the mitochondria?...

which of the following is not required for the transport of a protein into the mitochondria?

1. translaton finished in the cytoplasm

2. translocation channel

3. Ran- Gtase

4. signal sequence

5. Receptor

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Answer #1

which of the following is not required for the transport of a protein into the mitochondria?

3. Ran- Gtase

Explanation- Ran GTP regulates nucleo-cytoplasmic transport.

Mitochondrial proteins are synthesized by cytosolic as well as matrix ribosomes. About 99% of mitochondrial proteins are encoded by nuclear genes and are synthesized as precursors on cytosolic ribosomes.

Mitochondrial protein import requires membrane receptors and translocons (translocation channels). Import is initiated by the binding of a mitochondrial target sequence to an import receptor in the outer mitochondrial membrane.

Therefore rest all are required for transport of protein into the mitochondria.

Ps- An upvote would be highly appreciated

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