*** For details on how to be removed from this list visit the *** *** CCP4 home page http://www.ccp4.ac.uk *** Hi, Friends, Even after many refinements I am not able to get the Free Rfactor lower than 46%. Map looks good as well as no much green or red density on it.Fitting looks quite promossing and nice. RMS distance as well as angles are also below Avg. I will appreciate your answers. Zee.