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#Question id: 4152


The pathway for polypeptides exported from E. coli includes the following steps, which occur in what order for correct export?

1.  A chaperone, SecA, binds to the polypeptide.

2.  A chaperone, SecB, binds to the polypeptide.

3.  ATP is hydrolyzed by Sec A.

4.  SecA pushes 20 amino acids of the polypeptide into the translocation complex.

#3. Fundamental Processes
  1. 1, 2, 3, 4

  2. 1, 2, 4, 3

  3. 2, 1, 4, 3

  4. 2, 3, 1, 4


Answer:- Option(s): 3


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