*** For details on how to be removed from this list visit the *** *** CCP4 home page http://www.dl.ac.uk/CCP/CCP4/main.html *** > and Andrew Martin's ProFit at http://www.biochem.ucl.ac.uk/~martin/ Have I missed something??? You weren't thinking of PROCAT instead? http://www.biochem.ucl.ac.uk/bsm/PROCAT/PROCAT.html Cheers Phraenquex