[English] 日本語
Yorodumi Papers
- Database of articles cited by EMDB/PDB/SASBDB data -

+
Search query

Keywords
Structure methods
Author
Journal
IF

-
Structure paper

TitleThe self-association equilibrium of DNAJA2 regulates its interaction with unfolded substrate proteins and with Hsc70.
Journal, issue, pagesNat Commun, Vol. 14, Issue 1, Page 5436, Year 2023
Publish dateSep 5, 2023
AuthorsLorea Velasco-Carneros / Jorge Cuéllar / Leire Dublang / César Santiago / Jean-Didier Maréchal / Jaime Martín-Benito / Moisés Maestro / José Ángel Fernández-Higuero / Natalia Orozco / Fernando Moro / José María Valpuesta / Arturo Muga /
PubMed AbstractJ-domain proteins tune the specificity of Hsp70s, engaging them in precise functions. Despite their essential role, the structure and function of many J-domain proteins remain largely unknown. We ...J-domain proteins tune the specificity of Hsp70s, engaging them in precise functions. Despite their essential role, the structure and function of many J-domain proteins remain largely unknown. We explore human DNAJA2, finding that it reversibly forms highly-ordered, tubular structures that can be dissociated by Hsc70, the constitutively expressed Hsp70 isoform. Cryoelectron microscopy and mutational studies reveal that different domains are involved in self-association. Oligomer dissociation into dimers potentiates its interaction with unfolded client proteins. The J-domains are accessible to Hsc70 within the tubular structure. They allow binding of closely spaced Hsc70 molecules that could be transferred to the unfolded substrate for its cooperative remodelling, explaining the efficient recovery of DNAJA2-bound clients. The disordered C-terminal domain, comprising the last 52 residues, regulates its holding activity and productive interaction with Hsc70. These in vitro findings suggest that the association equilibrium of DNAJA2 could regulate its interaction with client proteins and Hsc70.
External linksNat Commun / PubMed:37670029 / PubMed Central
MethodsEM (single particle)
Resolution6.9 - 12.7 Å
Structure data

EMDB-14706: 3D reconstruction of the cylindrical assembly of DnaJA2 delta G/F without symmetry imposition
Method: EM (single particle) / Resolution: 9.2 Å

EMDB-14727: 3D reconstruction of the cylindrical assembly of DnaJA2 by imposing D5 symmetry
Method: EM (single particle) / Resolution: 10.8 Å

EMDB-14729: 3D reconstruction of the cylindrical assembly of DnaJA2 without symmetry imposition
Method: EM (single particle) / Resolution: 12.7 Å

14736

7zhs

EMDB-14736, PDB-7zhs:
3D reconstruction of the cylindrical assembly of DnaJA2 delta G/F by imposing D5 symmetry
Method: EM (single particle) / Resolution: 6.9 Å

Chemicals

ChemComp-ZN:
Unknown entry

Source
  • homo sapiens (human)
  • saccharomyces cerevisiae s288c (yeast)
KeywordsCHAPERONE / oligomer / filaments / helix / holdase / foldase / Hsp40 / DnaJA2 / Hsp70 co-chaperone

+
About Yorodumi Papers

-
News

-
Feb 9, 2022. New format data for meta-information of EMDB entries

New format data for meta-information of EMDB entries

  • Version 3 of the EMDB header file is now the official format.
  • The previous official version 1.9 will be removed from the archive.

Related info.:EMDB header

External links:wwPDB to switch to version 3 of the EMDB data model

-
Aug 12, 2020. Covid-19 info

Covid-19 info

URL: https://pdbj.org/emnavi/covid19.php

New page: Covid-19 featured information page in EM Navigator.

Related info.:Covid-19 info / Mar 5, 2020. Novel coronavirus structure data

+
Mar 5, 2020. Novel coronavirus structure data

Novel coronavirus structure data

Related info.:Yorodumi Speices / Aug 12, 2020. Covid-19 info

External links:COVID-19 featured content - PDBj / Molecule of the Month (242)：Coronavirus Proteases

+
Jan 31, 2019. EMDB accession codes are about to change! (news from PDBe EMDB page)

EMDB accession codes are about to change! (news from PDBe EMDB page)

  • The allocation of 4 digits for EMDB accession codes will soon come to an end. Whilst these codes will remain in use, new EMDB accession codes will include an additional digit and will expand incrementally as the available range of codes is exhausted. The current 4-digit format prefixed with “EMD-” (i.e. EMD-XXXX) will advance to a 5-digit format (i.e. EMD-XXXXX), and so on. It is currently estimated that the 4-digit codes will be depleted around Spring 2019, at which point the 5-digit format will come into force.
  • The EM Navigator/Yorodumi systems omit the EMD- prefix.

Related info.:Q: What is EMD? / ID/Accession-code notation in Yorodumi/EM Navigator

External links:EMDB Accession Codes are Changing Soon! / Contact to PDBj

+
Jul 12, 2017. Major update of PDB

Major update of PDB

  • wwPDB released updated PDB data conforming to the new PDBx/mmCIF dictionary.
  • This is a major update changing the version number from 4 to 5, and with Remediation, in which all the entries are updated.
  • In this update, many items about electron microscopy experimental information are reorganized (e.g. em_software).
  • Now, EM Navigator and Yorodumi are based on the updated data.

External links:wwPDB Remediation / Enriched Model Files Conforming to OneDep Data Standards Now Available in the PDB FTP Archive

-
Yorodumi Papers

Database of articles cited by EMDB/PDB/SASBDB data

  • Database of articles cited by EMDB, PDB, and SASBDB entries
  • Using PubMed data

Related info.:EMDB / PDB / SASBDB / Yorodumi / EMN Papers / Changes in new EM Navigator and Yorodumi

Read more