[1] Goethe Univ Frankfurt, Frankfurt Inst Mol Life Sci, D-60590 Frankfurt, Germany
[2] Goethe Univ Frankfurt, Inst Biochem 2, D-60590 Frankfurt, Germany
[3] Univ Tromso, Mol Canc Res Grp, Dept Med Biol, Tromso, Norway
[4] Merck KGaA, Darmstadt, Germany