Dear Qing Lu, Now that several suggestions, both ccp4 and non-ccp4, have been made, may I suggest that you (also) try autoSHARP, available free of charge at
http://www.globalphasing.com/sharp/ It includes the invocation of SHELXD to solve the substructure, and takes you all the way to autobuilding with ARP/wARP if you have it installed and your data resolution is sufficient. It has been around for quite a while and has many happy users. With best wishes, Gerard. -- On Wed, May 19, 2010 at 09:06:54AM -0700, Qing Lu wrote: > Hi All, > > I am new to protein crystallography. I would like to know the steps involved > in solving a MAD dataset by using the program in CCP4 where you determine > the phases and then obtain the trace. The dataset is collected at 3 > different wavelengths (peak, inflection and remote) using Se-Met as the > scatterer. The crystals diffracted to resolution of 2 Angstrsoms and has a > good anomalous signal. > > Thanks, > > Qing Lu -- =============================================================== * * * Gerard Bricogne g...@globalphasing.com * * * * Global Phasing Ltd. * * Sheraton House, Castle Park Tel: +44-(0)1223-353033 * * Cambridge CB3 0AX, UK Fax: +44-(0)1223-366889 * * * ===============================================================