[ccp4bb]: CCP4: Absorption correction on synchrotron data

["Roeland Boer" <boer@dq.fct.unl.pt>]

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Hello to all,

Recently, we collected synchrotron data on something that turned out to
be the cofactor, rather than the protein it binds to. Since this
co-factor contained Mo and other heavy atoms, a non-negligible
absorption effect was measured. Although we were able to solve the
structure, refinement is hampered because of this. We tried to apply
absorption correction procedures using small-molecule crystallography
programs, but the synchrotron wavelength seems to cause problems. My
question is therefore: can someone point out programs that do an
absorption correction (empirical or analytical) and are generalised for
any wavelength? Any help is much appreciated and I will summarize!!

Regards,
Roeland Boer.