PMID: 18226904
Kuglstatter A, Stahl M, Peters JU, Huber W, Stihle M, Schlatter D, Benz J, Ruf A, Roth D, Enderle T, Hennig M
Tyramine fragment binding to BACE-1.
Bioorg Med Chem Lett. 2008 Feb 15;18(4):1304-7. Epub 2008 Jan 11.
Fragment screening revealed that tyramine binds to the active site of the Alzheimer's disease drug target BACE-1. Hit expansion by selection of compounds from the Roche compound library identified tyramine derivatives with improved binding affinities as monitored by surface plasmon resonance. X-ray structures show that the amine of the tyramine fragment hydrogen-bonds to the catalytic water molecule. Structure-guided ligand design led to the synthesis of further low molecular weight compounds that are starting points for chemical leads.