The DOI matches its Crossref record; 4 of the 4 references it cites were found in a registry or an index.
Regulation of Hsp90 ATPase Activity by the Co-chaperone Cdc37p/p50
Open accessAbstract
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 the co-chaperone Sti1/Hop/p60 acts as a "scaffold," recruiting Hsp70 and the bound client to Hsp90 early in the cycle and suppressing ATP turnover by Hsp90 during the loading phase. Recruitment of protein kinase clients to the Hsp90 complex appears to involve a specialized co-chaperone, Cdc37p/p50(cdc37), whose binding to Hsp90 is mutually exclusive of Sti1/Hop/p60. We now show that Cdc37p/p50(cdc37), like Sti1/Hop/p60, also suppresses ATP turnover by Hsp90 supporting the idea that client protein loading to Hsp90 requires a "relaxed" ADP-bound conformation. Like Sti1/Hop/p60, Cdc37p/p50(cdc37) binds to Hsp90 as a dimer, and the suppressed ATPase activity of Hsp90 is restored when Cdc37p/p50(cdc37) is displaced by the immunophilin co-chaperone Cpr6/Cyp40. However, unlike Sti1/Hop/p60, which can displace geldanamycin upon binding to Hsp90, Cdc37p/p50(cdc37) forms a stable complex with geldanamycin-bound Hsp90 and may be sequestered in geldanamycin-inhibited Hsp90 complexes in vivo.
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Cites
Structure of TPR Domain–Peptide Complexes
Scheufler, C., Brinker, A., Bourenkov, G., Pegoraro, S., Moroder, L., Bartunik, H., Hartl, F. U., & Moarefi, I. (2000) · Cell · doi:10.1016/s0092-8674(00)80830-2 · Cited by 1,188
Mammalian p50Cdc37 is a protein kinase-targeting subunit of Hsp90 that binds and stabilizes Cdk4
Stepanova, L., Leng, X., Parker, S. B., & Harper, J. W. (1996) · Genes & Development · doi:10.1101/gad.10.12.1491 · Cited by 483
Two chaperone sites in Hsp90 differing in substrate specificity and ATP dependence
Scheibel, T., Weikl, T., & Buchner, J. (1998) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.95.4.1495 · Cited by 243
Russell, L. C., Whitt, S. R., Chen, M.-S., & Chinkers, M. (1999) · Journal of Biological Chemistry · doi:10.1074/jbc.274.29.20060 · Cited by 165
Cited by
HSP90 at the hub of protein homeostasis: emerging mechanistic insights
Taipale, M., Jarosz, D. F., & Lindquist, S. (2010) · Nature Reviews Molecular Cell Biology · doi:10.1038/nrm2918 · Cited by 1,818
Schopf, F. H., Biebl, M. M., & Buchner, J. (2017) · Nature Reviews Molecular Cell Biology · doi:10.1038/nrm.2017.20 · Cited by 1,540
Structure and mechanism of the Hsp90 molecular chaperone machinery
Pearl, L. H., & Prodromou, C. (2006) · Annual Review of Biochemistry · doi:10.1146/annurev.biochem.75.103004.142738 · Cited by 1,103
Self-citationCrystal structure of an Hsp90–nucleotide–p23/Sba1 closed chaperone complex
Ali, M. M. U., Roe, S. M., Vaughan, C. K., Meyer, P., Panaretou, B., Piper, P. W., Prodromou, C., & Pearl, L. H. (2006) · Nature · doi:10.1038/nature04716 · Cited by 962
Self-citationBasso, A. D., Solit, D. B., Chiosis, G., Giri, B., Tsichlis, P., & Rosen, N. (2002) · Journal of Biological Chemistry · doi:10.1074/jbc.m206322200 · Cited by 628
Metadata
- Authors
- Siligardi, G., Panaretou, B., Meyer, P., Singh, S., Woolfson, D. N., Piper, P. W., Pearl, L. H., & Prodromou, C.
- Venue
- Journal of Biological Chemistry
- Publisher
- Elsevier BV
- Published
- 2002-06
- Volume
- 277
- Issue
- 23
- Pages
- 20151-20159
- ISSN
- 0021-9258 (ISSN-L)
- OpenAlex
- W2073886258
- Cited by
- 272
- References
- 4
- FWCI
- 4.75
- Type
- journal article
- Language
- en
- Open access
- hybrid
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