Dear All,
I am trying to build a molecular replacement model in arp/warp in space group P22121.
Refmac alone seems to be fine with refining the model in P22121; but arp/warp fails, as far
as I can see at the first Refmac refinement stage. In the log-file it says "this space group is
not supported".
I am wondering whether arp/warp needs the Hermann-Mauguin convention space group
P21212. I suppose I will need to reindex in P21212 in order to use arp/warp? (the diffraction
data were indexed in XDS, scaled in SCALA, and then run through CAD to change the space
group from P222 to P22121). I am using arp/warp via the ccp4i interface.
Also, arp/warp gives the following message when I load the mtz file "cannot extract
arp/warp asymmetric unit limits, the job will fail if run." (i did run arp/warp successfully with
other mtz-files).
Thank you in advance for any comments!
Florian
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