Schopf, F.H.* ; Huber, E.M.* ; Dodt, C.* ; Lopez, A. ; Biebl, M.M.* ; Rutz, D.A.* ; Mühlhofer, M.* ; Richter, G.* ; Madl, T.* ; Sattler, M. ; Groll, M.* ; Buchner, J.*
The co-chaperone Cnsl and the recruiter protein Hgh1 Link Hsp90 to translation elongation via chaperoning elongation factor 2.
Mol. Cell 74, 73-87.e8 (2019)
The Hsp90 chaperone machinery in eukaryotes comprises a number of distinct accessory factors. Cns1 is one of the few essential co-chaperones in yeast, but its structure and function remained unknown. Here, we report the X-ray structure of the Cns1 fold and NMR studies on the partly disordered, essential segment of the protein. We demonstrate that Cns1 is important for maintaining translation elongation, specifically chaperoning the elongation factor eEF2. In this context, Cns1 interacts with the novel co-factor Hgh1 and forms a quaternary complex together with eEF2 and Hsp90. The in vivo folding and solubility of eEF2 depend on the presence of these proteins. Chaperoning of eEF2 by Cns1 is essential for yeast viability and requires a defined subset of the Hsp90 machinery as well as the identified eEF2 recruiting factor Hgh1.
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Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
Typ der Hochschulschrift
Herausgeber
Schlagwörter
Cns1 ; Co-chaperones ; Cpr7 ; Eef2 ; Hsp90 ; Molecular Chaperones ; S. Cerevisiae ; Ssa1; Saccharomyces-cerevisiae; Interaction Network; Human Interactome; Yeast Genes; Complexes; Systems; Domain; Identification; Architecture; Scattering
Keywords plus
Sprache
englisch
Veröffentlichungsjahr
2019
Prepublished im Jahr
HGF-Berichtsjahr
2019
ISSN (print) / ISBN
1097-2765
e-ISSN
1097-4164
ISBN
Bandtitel
Konferenztitel
Konferzenzdatum
Konferenzort
Konferenzband
Quellenangaben
Band: 74,
Heft: 1,
Seiten: 73-87.e8
Artikelnummer: ,
Supplement: ,
Reihe
Verlag
Elsevier
Verlagsort
50 Hampshire St, Floor 5, Cambridge, Ma 02139 Usa
Tag d. mündl. Prüfung
0000-00-00
Betreuer
Gutachter
Prüfer
Topic
Hochschule
Hochschulort
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Veröffentlichungsdatum
0000-00-00
Anmeldedatum
0000-00-00
Anmelder/Inhaber
weitere Inhaber
Anmeldeland
Priorität
Begutachtungsstatus
Peer reviewed
POF Topic(s)
30203 - Molecular Targets and Therapies
Forschungsfeld(er)
Enabling and Novel Technologies
PSP-Element(e)
G-503000-001
Förderungen
Copyright
Erfassungsdatum
2019-03-29