It appears that the Electron Density Server could not calculate a map for 3TVN. These cryptic messages are what you get from Coot when there is no map on the server. I can see from the RCSB web page that there is no EDS link in the "Experimental Details" section, which also happens when the EDS comes up empty.
When the EDS fails to calculate a reasonable map for an entry they do not tell us why. If they knew what the problem was they would fix it themselves. They remain silent hoping that the authors of the entry will contact them and give them some help. It is absolutely amazing that they can calculate as many maps as they do. Dale Tronrud On 08/08/12 13:39, Shya Biswas wrote: > Hi all, > > I was trying to get maps using the *fetch PDB and Map using EDS option* > in coot, however the map would not open I am using coot version 0.6.2 > was wondering if anybody else had similar problems and how to fix this, > the following is the error message I get. It used to work fine with a > previous version of coot. > > > > CCP4MTZfile: open_read - File missing or corrupted: > coot-download/3tvn_sigmaa.mtz > INFO:: not an mtz file: coot-download/3tvn_sigmaa.mtz > ERROR: no f_cols! > ERROR: no phi_cols! > valid_labels(coot-download/3tvn_sigmaa.mtz,FOFCWT,PHFOFCWT,,0) returns 0 >>>>>>> CCP4 library signal library_file:End of File (Error) > raised in ccp4_file_raw_read <<<<<< >>>>>>> System signal 0:Success (Error) > raised in ccp4_file_rarch <<<<<< >>>>>>> CCP4 library signal library_file:End of File (Error) > raised in ccp4_file_raw_read <<<<<< >>>>>>> System signal 0:Success (Error) > raised in ccp4_file_readchar <<<<<< >>>>>>> CCP4 library signal mtz:Read failed (Error) > raised in MtzGet <<<<<< > CCP4MTZfile: open_read - File missing or corrupted: > coot-download/3tvn_sigmaa.mtz > INFO:: not an mtz file: coot-download/3tvn_sigmaa.mtz > ERROR: no f_cols! > ERROR: no phi_cols! > WARNING:: label(s) not found in mtz file coot-download/3tvn_sigmaa.mtz > FOFCWT PHFOFCWT > WARNING:: -1 is not a valid molecule in set_scrollable_map > > thanks, > Shya >
