Assuming that your 2d crystals are membrane proteins and are truly 2d
(one layer thick), how can there be a screw axis?
JPK
On Sat, Nov 27, 2010 at 12:02 PM, Jeffrey D Brodin <[log in to unmask]> wrote:
> Hi all,
>
> I'm currently working on a project where we are attempting to compare a single crystal X-ray structure with 2D crystals we've imaged with TEM. I have nice 2D cyrstals and low dose cryo images.
>
> My question is whether there is a program in ccp4 that will let you input a model and then generate a 2D projection using different plane groups. We are pretty sure, based on electron diffraction, that the 2D crystals contain a screw axis, as did the X-ray structure. Also, after generating the images, is there another program that will calculate structure factors and a diffraction pattern? Thanks in advance for the help,
>
> Jeff Brodin
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