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The DOI matches its Crossref record; 36 of the 36 references it cites were found in a registry or an index.

Solution conformation of wild-type E. coli Hsp70 (DnaK) chaperone complexed with ADP and substrate

Open access
Bertelsen, Eric B., Chang, Lyra, Gestwicki, Jason E., Zuiderweg, Erik R. P.·2009·Proceedings of the National Academy of Sciences

Abstract

DnaK is the canonical Hsp70 molecular chaperone protein from Escherichia coli . Like other Hsp70s, DnaK comprises two main domains: a 44-kDa N-terminal nucleotide-binding domain (NBD) that contains ATPase activity, and a 25-kDa substrate-binding domain (SBD) that harbors the substrate-binding site. Here, we report an experimental structure for wild-type, full-length DnaK, complexed with the peptide NRLLLTG and with ADP. It was obtained in aqueous solution by using NMR residual dipolar coupling and spin labeling methods and is based on available crystal structures for the isolated NBD and SBD. By using dynamics methods, we determine that the NBD and SBD are loosely linked and can move in cones of ±35° with respect to each other. The linker region between the domains is a dynamic random coil. Nevertheless, an average structure can be defined. This structure places the SBD in close proximity of subdomain IA of the NBD and suggests that the SBD collides with the NBD at this area to establish allosteric communication.

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Metadata

Authors
Bertelsen, E. B., Chang, L., Gestwicki, J. E., & Zuiderweg, E. R. P.
Venue
Proceedings of the National Academy of Sciences
Published
2009-05-26
Volume
106
Issue
21
Pages
8471-8476
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2042838776
Cited by
454
References
36
FWCI
9.96
Type
journal article
Language
en
Open access
green

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Bertelsen, E. B., Chang, L., Gestwicki, J. E., & Zuiderweg, E. R. P. (2009). Solution conformation of wild-type E. coli Hsp70 (DnaK) chaperone complexed with ADP and substrate. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.0903503106

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