I am trying to open a map generated by microED. I generated a SigmaA map in coot based on an fcf file generated by SHELXL (see attached). I can open it in Chimera and things look reasonable. I am wondering if it is possible to expand the density map beyond the boundaries of the available box using the crystallographic symmetry? Additionally, I am a bit confused by the size of the box. I would have expected it to have the dimensions of the unit cell or the asymmetric unit, but it does not appear to be either of those. The map does appear to be scaled properly. 

Any help would be greatly appreciated.

Thanks,

Jessica
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