1 Institute of Pharmaceutical Chemistry, Johann Wolfgang Goethe University, Frankfurt, Germany. knapp@pharmchem.uni-frankfurt.de.
2 Structural Genomics Consortium (SGC), Buchmann Institute for Life Sciences, Johann Wolfgang Goethe University, Frankfurt, Germany. knapp@pharmchem.uni-frankfurt.de.
3 Institute of Pharmaceutical Chemistry, Johann Wolfgang Goethe University, Frankfurt, Germany. susanne.mueller-knapp@bmls.de.
4 Structural Genomics Consortium (SGC), Buchmann Institute for Life Sciences, Johann Wolfgang Goethe University, Frankfurt, Germany. susanne.mueller-knapp@bmls.de.