Hello everybody

I have two different isoforms of a crystals of different of 3.0A (SAD Dataset) and 2.5A resolution. In one crystal form a dimer is present is ASU, where as in another crystal form it is present as  a tetramer. I want to make a image which should show the extra elctron density which is present in tetrameric form. This extra density which is visible in coot as well as in O but not in pymol  with the same map file. Although i tried unset the normalisation of the ccp4 map, thge map remain as such without extra density of the another molecule. I would appreciate the suggestions.

Thanks in advance

peter