Hi all-
I'm trying to convert a cryoEM map from FREALIGN for use with various CCP4
programs, or with MAPMAN. Even though the MRC format is derived from the
CCP4 map file format, every program I've tried fails to open it, (except for
Chimera which displays the map but cannot save it to another format for lack
of memory).
For example, in MAPMASK I get the error:
>>>>>> CCP4 library signal ccp4_map:No associated header (Error)
raised in ccp4_cmap_open <<<<<<
>>>>>> CCP4 library signal ccp4_map:Cannot open file (Error)
raised in MRDHDS <<<<<<
or with MAPMAN:
**CCPOPN ERROR** FORMATTED OLD file open failure on unit 1
Logical name: DLP_100.map, File name: DLP_100.map
Cannot send after transport endpoint shutdown
ERROR --- While reading map header. Sorry !
ERROR --- While opening map file
Is there a way to re-write the header to be compatible with CCP4?
--James
