[ccp4bb]: Conversion to and from MTZ Format

[Gregg Crichlow]

Dear CCP4 Bulletin Board Readers:        I have noticed that, when converting MTZ files to XPLOR (or CNS) format using CCP4i, I do not have options for having intensities in the output file. I found a way to output the intensites by using the "Run&View Com File" option, and then editing the command script appropriately.  However, when this is done it only gave me intensities (and sigma(I)) but not both intensities and SF amplitudes. The MTZ2various documentation that I have says "If only FP SIGFP or IP SIGIP are assigned on LABIN, then h k l FP SIGFP or h k l IP SIGIP is output."  However, if I assign I and SIGI as well as FP and SIGFP, it seems to ignore the FP and SIGFP assignments, and only give me intensities.  Is there a way to get it to output both intesities and amplitudes?        On a related note, I was curious, although this is not a problem, as to why the intensities found in the MTZ file, resulting from a run of Scalepack2MTZ, are scaled with respect to the input values from the '.sca' file.  I noticed that the intensities are different in the two files, and differ by a factor of approximately 4.547891321. (The calculator I was using is set to nine decimal places). Thank you all very much. Gregg Crichlow -- ******************************************* Gregg Crichlow Dept. of Pharmacology Yale University P.O. Box 208066 New Haven, CT 06520-8066 *******************************************