<table cellspacing="0" cellpadding="0" border="0" ><tr><td valign="top" style="font: inherit;"><P>Hi, I'm a student of Pharmacy and I just learn about chimera.</P><P>Actually, I want to run a docking using Autodock so I have to minimze the structure of macromolecule first. I choose Chimera to minimize the structure of macromolecule. However, there is an error because the Fe atom doesn't have GAFF</P><P>"Unable to find GAFF type for #0:500.A@FE"</P><P>I also have a problem with hydrogen at Histidin residu</P><P>"no MMTK name for H at standard HIS"</P><P>How can Isolve this problem?</P><P>I'll be very thankful for your answers.</P><P>Best Regards, </P><P>Agus Lee.</P></td></tr></table><br>