Preface -- List of Contributors- About the Editors- GrpE, Hsp110/Grp170, HspBP1/Sil1 and BAG domain proteins: Nucleotide exchange factors for Hsp70 molecular chaperones -- Functions of the Hsp90-Binding FKBP Immunophilins -- Hsp70/Hsp90 organising protein (Hop): beyond interactions with chaperones and prion proteins -- Specification of Hsp70 function by Type I and Type II Hsp40 -- Cdc37 as a Co-chaperone to Hsp90 -- p23 and Aha1- UCS proteins: chaperones for myosin and co-chaperones for Hsp90 -- Chaperonin - Co-chaperonin Interactions -- Co-chaperones of the mammalian endoplasmic reticulum -- The evolution and function of co-chaperones in mitochondria -- CHIP: a co-chaperone for degradation by the proteasome -- The role of HSP70 and its co-chaperones in protein misfolding, aggregation and disease -- Index.