Three-dimensional model of purple membrane obtained by electron microscopy
- 1 September 1975
- journal article
- Published by Springer Nature in Nature
- Vol. 257 (5521) , 28-32
- https://doi.org/10.1038/257028a0
Abstract
A 7-A resolution map of the purple membrane has been obtained by electron microscopy of tilted, unstained specimens. The protein in the membrane contains seven, closely packed, alpha-helical segments which extend roughly perpendicular to the plane of the membrane for most of its width. Lipid bilayer regions fill the spaces between the protein molecules.Keywords
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