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Nature 455, 879-880 (16 October 2008) | doi:10.1038/455879a; Published online 15 October 2008

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Structural biology: Clamour for a kiss

Anastassios Economou1

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Precisely how proteins snake their way through channels in cell membranes is unclear. Complexes between the SecY channel and its motor protein, and the use of a 'molecular endoscope', provide fascinating clues.

To cross cellular membranes, secretory proteins use specialized channels such as that known as SecY. When ribosomes start synthesizing secretory proteins, the ribosome–protein complex is hijacked to the mouth of SecY.

  1. Anastassios Economou is at the Institute of Molecular Biology and Biotechnology, Foundation of Research and Technology-Hellas, and in the Department of Biology, University of Crete, PO Box 1385, Iraklio, Crete, Greece.
    Email: aeconomo@imbb.forth.gr

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