Correspondence to Dr Paddy C Dempsey, MRC Epidemiology Unit, Institute of Metabolic Science, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK; Paddy.Dempsey{at}baker.edu.au ...

Importantly, Lrp1 and Lrp1b (both orange in the diagram) have drastically different rates of endocytosis, with the internalization rate of Lrp1 exceeding that of Lrp1b by many-fold. Both bind Fe65, ...