Dear Jessica, You can try http://manoraa.org for ligand interaction observation. This server helps you to observe structural conservation environment of any ligand in the PDB by clicking atoms versus PDB chains you want to superpose on. If you classify HEME into different UNIPROT, you can see where the major differences in atomic conservation from each set lies. You can also select a partial fragment of HEME that you want to characterise the interaction types for each ligand-residues partners too.
Just type in 'HEM' on the three letter code panel of this URLs http://manoraa.icbs.mahidol.ac.th/Manoraa/ Best wishes, Duangrudee Duangrudee Tanramluk, Ph.D. Institute of Molecular Biosciences, Mahidol University Puttamonthon 4 Rd., Salaya, Nakhon Pathom 73170 THAILAND ######################################################################## To unsubscribe from the CCP4BB list, click the following link: https://www.jiscmail.ac.uk/cgi-bin/webadmin?SUBED1=CCP4BB&A=1
