Dear Mr/Mrs,

I am new to ChimeraX (v 0.7) and I have a trouble when saving a map.

I am working with a .ccp4 map from an electron microscopy project. I would like to slightly change the pixel size that was inaccurately estimated during data processing and chimeraX seems to be the program for doing that.

- Opening the map is fine.

- Then I change the pixel voxelsize which is also fine.

- I then save the modified map (I use the .mrc format here given that I do not find a .ccp4 format).

- However if I then use the map with my usual softwares (phenix, coot) it looks like pure noise. But the map looks normal with some other softwares (e.g. pymol). I also have no problem usually with my .mrc maps with any software so I would assume the problem is with the .mrc map I created

Do you know what I could do to solve this problem ?

Thanks,

Stephane Roche

Institut de Biologie Intégrative de la Cellule

91198 Gif sur Yvette

France