PTS1- and PTS2-bearing matrix proteins are targeted to:
A) a common cytosolic receptor.
B) a common import receptor and translocation machinery on the peroxisomal membrane.
C) a common receptor on the nuclear pore that catalyzes entry into the nucleus via pore targeting sequences.
D) a common receptor protein within the peroxisomal matrix that activates protein processing for PTS1- and PTS2-bearing proteins.
Correct Answer:
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Q18: Which of the following proteins involved in
Q19: Glycosylation,a post-translational modification of proteins,occurs in the:
A)Golgi.
B)proteasome.
C)mitochondria.
D)none
Q20: Tom/Tim and Toc/Tic protein complexes are involved
Q21: Which of the following components of mitochondrial
Q22: Which of the following is present in
Q24: The nuclear pore complex allows for:
A)passive diffusion
Q24: Which type of RNA participates in nuclear
Q25: A polypeptide chain contains an amphipathic helix,with
Q26: How does Ran·GTP participate in the nuclear
Q27: Protein import into the mitochondrial matrix is
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