Protein Import into Mitochondria
Cell Biology
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Protein Sorting and Vesicular Transport
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Protein Sorting
Q. TOM is encoded by a nuclear gene. What sequence of events would a TOM protein undergo before it can be active?
a
Unfolded presequence of TOM binds mitochondrial receptor – TOM is transferred into outer membrane and released laterally.
b
Unfolded presequence of TOM binds mitochondrial receptor – TOM transferred into outer membrane – and released in intermembrane space
c
Unfolded presequence of TOM binds mitochondrial receptor – TOM transferred through outer membrane – then into inner membrane – and released laterally into the inner membrane.
d
Unfolded presequence of TOM binds mitochondrial receptor – TOM transferred through outer membrane – then through inner membrane – and released in matrix.
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