Hi all,

I keep getting the error below when trying to calculate a map from a mmcif file. I can convert this file to .mtz in ccp4 and then load that into coot, which gives a sensible map, but it seems that the CCP4 intermediary step shouldn't be necessary. Any help would be much appreciated!

WARNING:: Ooops - all the structure factor amplitudes appear to be zero - or missing. WARNING:: Are you sure this file (4.cif) contains calculated structure factors?
WARNING:: No map calculated.


Thank You,
Don

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