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Hsp70 chaperones: Cellular functions and molecular mechanism

Open access
Mayer, M. P., Bukau, B.·2005·Cellular and Molecular Life Sciences

Abstract

Abstract.Hsp70 proteins are central components of the cellular network of molecular chaperones and folding catalysts. They assist a large variety of protein folding processes in the cell by transient association of their substrate binding domain with short hydrophobic peptide segments within their substrate proteins. The substrate binding and release cycle is driven by the switching of Hsp70 between the low-affinity ATP bound state and the high-affinity ADP bound state. Thus, ATP binding and hydrolysis are essential in vitro and in vivo for the chaperone activity of Hsp70 proteins. This ATPase cycle is controlled by co-chaperones of the family of J-domain proteins, which target Hsp70s to their substrates, and by nucleotide exchange factors, which determine the lifetime of the Hsp70-substrate complex. Additional co-chaperones fine-tune this chaperone cycle. For specific tasks the Hsp70 cycle is coupled to the action of other chaperones, such as Hsp90 and Hsp100.

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Metadata

Authors
Mayer, M. P., & Bukau, B.
Venue
Cellular and Molecular Life Sciences
Published
2005-03
Volume
62
Issue
6
Pages
670-84
ISSN
  • 1420-682X (ISSN-L)
  • 1420-9071
OpenAlex
W2109936231
Cited by
2,865
References
4
FWCI
29.50
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: Hsp70 chaperones: Cellular functions and molecular mechanism. https://app.cochat.ai/papers/10.1007/s00018-004-4464-6
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Mayer, M. P., & Bukau, B. (2005). Hsp70 chaperones: Cellular functions and molecular mechanism. Cellular and Molecular Life Sciences. https://doi.org/10.1007/s00018-004-4464-6

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.