Chaperones facilitate proper folding of peptides and bind to misfolded proteins as occurring during periods of cell stress. Complexes of peptides with chaperones induce peptide-directed immunity. Here we analyzed the interaction of (pre)proinsulin with the best characterized chaperone of the hsp70 family, bacterial DnaK.
German Diabetes Centre, Leibniz Institute at Heinrich Heine University Düsseldorf, Institute of Clinical Diabetology, Auf'm Hennekamp 65, D-40225 Düsseldorf, Germany. burkart@ddz.uni-duesseldorf.de