[1] Max Planck Inst Mol Physiol, Dept Phys Biochem, D-44227 Dortmund, Germany
[2] Univ Bayreuth, Dept Biol Chem, D-95447 Bayreuth, Germany
[3] Tech Univ Dortmund, Fak Chem, Fachbereich Biol Chem, D-44227 Dortmund, Germany
[4] Lead Discovery Ctr GmbH, D-44227 Dortmund, Germany