[3dem] protein crystals

Philip Köck Philip.Koeck at ki.se
Fri Dec 20 05:44:56 PST 2013

Hi everybody.

Is it possible that a very thin (membrane) protein crystal, consisting of maybe two or three layers of
proteins in there respective lipid membranes, could exhibit for example a p3 symmetry in zero degree
projection when the crystal as a 3-dimensional object doesn't have this symmetry?
In other words only the central slice of the Fourier transform parallel to the crystal plane would have 3-fold symmetry, but not a non-central slice.

Thanks and Merry Christmas,


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