Sec dependent and sec independent assembly of E. coli inner membrane proteins: the topological rules depend on chain length.

Abstract excerpt

Translocation of proteins across the inner membrane of Escherichia coli normally requires the participation of the sec machinery. A number of proteins are known, however, where translocation can proceed unhindered even when the function of either SecA or SecY, central components of the sec machinery, is blocked. We now show that there is a linear correlation between the length of a translocated region and its...

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