Hi Scott,

resolution and map gridding are related. Max resolution (amount of reflections) you can get from map sampled on (N1,N2,N3) grid is |h|<N1/2, |k|<N2/2, |l|<N3/2, where (N1,N2,N3) are grid dimensions for sampling density for FFT. Note, what you typically get is a sphere carved out of that box.

Pavel

On 1/30/15 5:09 AM, Scott Horowitz wrote:

Hi all,

Although I realize this sounds counterproductive, I'd really like to be able to make a map with grid spacing that is around 3 A, even though I have a ~2 A structure, and I don't want to have to cut data before refinement. However, it seems like the max number I can give to the grid resolution factor is 0.5. Is there a way to break this limit without it crashing?

Thanks,

Scott

--

Scott Horowitz, Ph.D.

Research Associate

Howard Hughes Medical Institute

University of Michigan
Department of Molecular, Cellular, and Developmental Biology
Bardwell lab
830 N. University Ave, Room 4007
Ann Arbor, MI 48109
phone: 734-647-6683
fax: 734-615-4226
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