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A current model for protein secretion by prokaryotes

A current model for protein secretion by prokaryotes
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Description: The new polypeptide chain (the pro-protein) complexes with SecB, which prevents complete folding during transport to the membrane.

At the membrane an ATPase, SecA, drives translocation through the membrane with the aid of SecYEG, which forms a membrane pore.

The leader sequence is then cleaved off the secreted protein by a membrane peptidase.

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Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=35105
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