Peter Nagy is currently a professor at the Department of Biophysics and Cell Biology, University of Debrecen and heads the Quantitative receptor analysis group. He identified a mechanism of resistance to the therapeutic anti-ErbB2 antibody, trastuzumab. He contributed significantly to the characterization of the hierarchical clustering of membrane proteins applying a combination of molecular biological and biophysical methods (e.g. FRET, confocal microscopy, digital image processing). His current research interest lies in studying how clustering of membrane proteins and their interactions with the lipid environment determine the cell biological properties of the plasma membrane, and how quantitative evaluation of fluorescence experiments can lead to novel discoveries in cell biology.