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Could it be a fatty acid? It looks like it has a (hydrophobic?) tail with a (charged?) head. Partially occupied perhaps, as they're so close together. On Sun, Nov 4, 2012 at 7:38 PM, yogesh khandokar <[log in to unmask] > wrote: > Dear All > > I am working on an enzyme which involved in fatty acid biosynthesis. We > solved the crystal structure of it. Biological unit of this enzyme is > Hexamer and showing extra electron density in the center of Hexamer. > Wincoot software doesn't recognize this extra electron density as water > molecules/ substrate. > > My question is:Is there any way to find the molecules responsible for > extra electron density? > > Picture is attached with email. > > Thanks in advance for your comments. > > Regards > -- > Yogesh Khandokar > PhD Student > School of Biomedical Sciences > Charles Sturt University > Wagga Wagga, NSW, > Australia > http://www.csu.edu.au/faculty/science/biomed/ > >