Biological Sciences Seminar: You Wait Ages for a Chaperone then two come along at once! - Hsp70s: an ubiquitous family of molecular chaperones
Date: Friday 10 March 2006
Venue: GLT2 Biological Sciences
Speaker: Professor C. Stirling, Faculty of Life Sciences, University of Manchester
Hsp70s are an ubiquitous family of molecular chaperones involved in many vital cellular processes including protein folding, quality control, organelle biogenesis and stress response. Central to their chaperone function is their ability to reversibly bind unfolded polypeptide chains. This activity requires an ATP-dependent conformational change that is regulated by specific co-chaperone partners. Eukaryotic cells encode numerous distinct Hsp70s of which several have been shown to functionally overlap. It had been assumed that such overlap reflected simple functional redundancy but we have recently found that Hsp70s interact with one another in order to co-ordinate their different activities.