The cytoplasmic domain of Escherichia coli leader peptidase is a "translocation poison" sequence.

Abstract

Leader peptidase is an integral, transmembrane protein of the plasma membrane of Escherichia coli. Its membrane assembly requires its internal, uncleaved signal sequence, its large periplasmic carboxyl-terminal region, and an apolar domain that is known as a "hydrophobic helper." We now show that the polar cytoplasmic domain of leader peptidase is a unique… (More)

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