I tried to calculate a composite omit map in autobuild for 3 complexes in the au. The calculation finished without any problems, but the maps look not right. There is density for the molecule, but there is a lot of density in the solvent areas, which I never saw when I calculated regular 2fo-fc maps or fo-fc maps. I also have calculated omit maps in autobuild before for single problem region and never saw anything like this.  Any idea what could have gone wrong? Where should I start looking?<br>
<br>Ursula<br clear="all"><br>-- <br>Ursula Schulze-Gahmen, Ph.D.<br>Assistant Researcher<br>UC Berkeley, QB3<br>356 Stanley Hall #3220<br>Berkeley, CA 94720-3220<br><br>