Bovine rhodopsin p22121 crystal

The projection density map of the p22121 crystal of bovine rhodopsin
provides an orientation
for the identical octahedra which make up the atoms of the rhodopsin
molecules of the crystal. This establishes the axial directions of
their alpha helixes. See the file RhodopsinCry.pdf which is found
under the "Files for sharing" link on the website--

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