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Science. 1996 Mar 15;271(5255):1519-26.

Common principles of protein translocation across membranes.

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  • 1Biozentrum der Universit├Ąt Basel, Switzerland.

Abstract

Most major systems that transport proteins across a membrane share the following features: an amino-terminal transient signal sequence on the transported protein, a targeting system on the cis side of the membrane, a hetero-oligomeric transmembrane channel that is gated both across and within the plane of the membrane, a peripherally attached protein translocation motor that is powered by the hydrolysis of nucleoside triphosphate, and a protein folding system on the trans side of the membrane. These transport systems are divided into two families: export systems that export proteins out of the cytosol, and import systems that transport proteins into cytosol-like compartments.

PMID:
8599107
[PubMed - indexed for MEDLINE]
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