Crystal structure of an Hsp90–nucleotide–p23/Sba1 closed chaperone complex

MMU Ali, SM Roe, CK Vaughan, P Meyer, B Panaretou… - Nature, 2006 - nature.com
… The requirement of Hsp90 for the function of oncogenic protein kinases such as ErbB2,
Cdk4, B-Raf and Akt/protein kinase B (reviewed in ref. 5) makes it an attractive target for new …

[HTML][HTML] ATP binding and hydrolysis are essential to the function of the Hsp90 molecular chaperone in vivo

B Panaretou, C Prodromou, SM Roe, R O'Brien… - The EMBO …, 1998 - embopress.org
… The structural homology between the ATP-binding sites in gyrase B and Hsp90 suggests
that Glu33 might play a similar role in the ATPase activity of Hsp90. Thus, mutations of Asp79 …

[PDF][PDF] Structural and functional analysis of the middle segment of hsp90: implications for ATP hydrolysis and client protein and cochaperone interactions

…, B Hu, C Vaughan, SM Roe, B Panaretou… - Molecular cell, 2003 - cell.com
… (B) Stereo pair secondary structure cartoon of the yeast Hsp90 middle segment, rainbow …
(B) Location of mutated residues on the middle segment structure. Residues in cyan are in the …

[HTML][HTML] Activation of the ATPase activity of hsp90 by the stress-regulated cochaperone aha1

B Panaretou, G Siligardi, P Meyer, A Maloney… - Molecular cell, 2002 - cell.com
Client protein activation by Hsp90 involves a plethora of cochaperones whose roles are
poorly defined. A ubiquitous family of stress-regulated proteins have been identified (Aha1, …

[HTML][HTML] The ATPase cycle of Hsp90 drives a molecular 'clamp'via transient dimerization of the N‐terminal domains

C Prodromou, B Panaretou, S Chohan… - The EMBO …, 2000 - embopress.org
How the ATPase activity of Heat shock protein 90 (Hsp90) is coupled to client protein activation
remains obscure. Using truncation and missense mutants of Hsp90, we analysed the …

[HTML][HTML] Regulation of Hsp90 ATPase activity by tetratricopeptide repeat (TPR)‐domain co‐chaperones

…, R O'Brien, DN Woolfson, L Regan, B Panaretou… - The EMBO …, 1999 - embopress.org
The in vivo function of the heat shock protein 90 (Hsp90) molecular chaperone is
dependent on the binding and hydrolysis of ATP, and on interactions with a variety of co‐chaperones …

[HTML][HTML] The mechanism of Hsp90 regulation by the protein kinase-specific cochaperone p50cdc37

SM Roe, MMU Ali, P Meyer, CK Vaughan, B Panaretou… - Cell, 2004 - cell.com
Recruitment of protein kinase clients to the Hsp90 chaperone involves the cochaperone p50
cdc37 acting as a scaffold, binding protein kinases via its N-terminal domain and Hsp90 via …

[HTML][HTML] Regulation of Hsp90 ATPase activity by the co-chaperone Cdc37p/p50cdc37

G Siligardi, B Panaretou, P Meyer, S Singh… - Journal of biological …, 2002 - ASBMB
In vivo activation of client proteins by Hsp90 depends on its ATPase-coupled conformational
cycle and on interaction with a variety of co-chaperone proteins. For some client proteins …

[PDF][PDF] Hsp90-dependent activation of protein kinases is regulated by chaperone-targeted dephosphorylation of Cdc37

…, JR Smith, A Truman, B Hu, VM Good, B Panaretou… - Molecular cell, 2008 - cell.com
… coli-expressed protein itself was unreactive, but developed a clear signal on incubation
with CK2 (Figure 1B), confirming the specific recognition of the phosphorylated Cdc37 by our …

[HTML][HTML] Co-chaperone regulation of conformational switching in the Hsp90 ATPase cycle

G Siligardi, B Hu, B Panaretou, PW Piper… - Journal of Biological …, 2004 - ASBMB
… shown that Hsp90 is structurally and biochemically related to DNA-gyrase B and MutL ( …
Sti1 (A) and Sba1 (B) inhibition of the ATPase activity of Hsp90 ts-mutants showing that their …