[English] 日本語
Yorodumi
- EMDB-71032: Structure of D2-NT amyloid fibrils -

+
Open data


ID or keywords:

Loading...

-
Basic information

Entry
Database: EMDB / ID: EMD-71032
TitleStructure of D2-NT amyloid fibrils
Map data
Sample
  • Complex: CHCHD2
    • Protein or peptide: Coiled-coil-helix-coiled-coil-helix domain-containing protein 2
KeywordsCHCHD2 / Amyloid Fibril / PROTEIN FIBRIL
Function / homology
Function and homology information


regulation of generation of precursor metabolites and energy / positive regulation of mitochondrial ATP synthesis coupled electron transport / regulation of cellular response to hypoxia / Mitochondrial protein import / Mitochondrial protein degradation / mitochondrion organization / mitochondrial intermembrane space / cellular response to oxidative stress / DNA-binding transcription factor binding / sequence-specific DNA binding ...regulation of generation of precursor metabolites and energy / positive regulation of mitochondrial ATP synthesis coupled electron transport / regulation of cellular response to hypoxia / Mitochondrial protein import / Mitochondrial protein degradation / mitochondrion organization / mitochondrial intermembrane space / cellular response to oxidative stress / DNA-binding transcription factor binding / sequence-specific DNA binding / positive regulation of transcription by RNA polymerase II / mitochondrion / nucleus
Similarity search - Function
: / CHCH / CHCH domain / Coiled coil-helix-coiled coil-helix (CHCH) domain profile.
Similarity search - Domain/homology
Coiled-coil-helix-coiled-coil-helix domain-containing protein 2
Similarity search - Component
Biological speciesHomo sapiens (human)
Methodhelical reconstruction / cryo EM / Resolution: 2.03 Å
AuthorsLv G / Eliezer D
Funding support United States, 1 items
OrganizationGrant numberCountry
National Institutes of Health/National Institute on Aging (NIH/NIA)RF1AG066493 United States
CitationJournal: Nat Commun / Year: 2025
Title: Amyloid fibril structures link CHCHD10 and CHCHD2 to neurodegeneration.
Authors: Guohua Lv / Nicole M Sayles / Yun Huang / Chiara Mancinelli / Kevin McAvoy / Neil A Shneider / Giovanni Manfredi / Hibiki Kawamata / David Eliezer /
Abstract: Mitochondrial proteins CHCHD10 and CHCHD2 are mutated in rare cases of heritable FTD, ALS and PD and aggregate in tissues affected by these diseases. Here, we show that both proteins form amyloid ...Mitochondrial proteins CHCHD10 and CHCHD2 are mutated in rare cases of heritable FTD, ALS and PD and aggregate in tissues affected by these diseases. Here, we show that both proteins form amyloid fibrils and report cryo-EM structures of fibrils formed from their disordered N-terminal domains. The ordered cores of these fibrils are comprised of a region highly conserved between the two proteins, and a subset of the CHCHD10 and CHCHD2 fibril structures share structural similarities and appear compatible with sequence variations in this region. In contrast, disease-associated mutations p.S59L in CHCHD10 and p.T61I in CHCHD2, situated within the ordered cores of these fibrils, cannot be accommodated by the wildtype structures and promote different protofilament folds and fibril structures. These results link CHCHD10 and CHCHD2 amyloid fibrils to neurodegeneration and further suggest that fibril formation by the WT proteins could also be involved in disease etiology.
History
DepositionJun 4, 2025-
Header (metadata) releaseJul 30, 2025-
Map releaseJul 30, 2025-
UpdateAug 13, 2025-
Current statusAug 13, 2025Processing site: RCSB / Status: Released

-
Structure visualization

Supplemental images

emd_71032.png

Downloads & links

-
Map

FileDownload / File: emd_71032.map.gz / Format: CCP4 / Size: 64 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
0.83 Å/pix.
x 256 pix.
= 211.2 Å		0.83 Å/pix.
x 256 pix.
= 211.2 Å		0.83 Å/pix.
x 256 pix.
= 211.2 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 0.825 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.015
Minimum - Maximum-0.04273427 - 0.09321416
Average (Standard dev.)0.00003416553 (±0.0016925297)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions256256256
Spacing256256256
CellA=B=C: 211.2 Å
α=β=γ: 90.0 °

-
Supplemental data

-
Mask #1

Fileemd_71032_msk_1.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

-
Half map: #1

Fileemd_71032_half_map_1.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

-
Half map: #2

Fileemd_71032_half_map_2.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

-
Sample components

-
Entire : CHCHD2

EntireName: CHCHD2
Components
  • Complex: CHCHD2
    • Protein or peptide: Coiled-coil-helix-coiled-coil-helix domain-containing protein 2

-
Supramolecule #1: CHCHD2

SupramoleculeName: CHCHD2 / type: complex / ID: 1 / Parent: 0 / Macromolecule list: all
Source (natural)Organism: Homo sapiens (human)

-
Macromolecule #1: Coiled-coil-helix-coiled-coil-helix domain-containing protein 2

MacromoleculeName: Coiled-coil-helix-coiled-coil-helix domain-containing protein 2
type: protein_or_peptide / ID: 1 / Number of copies: 6 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 11.368748 KDa
Recombinant expressionOrganism: Escherichia coli (E. coli)
SequenceString:
MPRGSRSRTS RMAPPASRAP QMRAAPRPAP VAQPPAAAPP SAVGSSAAAP RQPGLMAQMA TTAAGVAVGS AVGHTLGHAI TGGFSGGSN AEPARPDITY QEPQGTQPAQ QQQPM

UniProtKB: Coiled-coil-helix-coiled-coil-helix domain-containing protein 2

-
Experimental details

-
Structure determination

Methodcryo EM
Processinghelical reconstruction
Aggregation statefilament

-
Sample preparation

BufferpH: 7.8
GridModel: Quantifoil R1.2/1.3 / Material: COPPER / Mesh: 300 / Pretreatment - Type: GLOW DISCHARGE / Pretreatment - Time: 25 sec. / Pretreatment - Atmosphere: AIR / Pretreatment - Pressure: 0.03 kPa
VitrificationCryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 293.15 K / Instrument: FEI VITROBOT MARK IV

-
Electron microscopy

MicroscopeTFS KRIOS
Image recordingFilm or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Average electron dose: 48.4 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal defocus max: 2.5 µm / Nominal defocus min: 0.6 µm / Nominal magnification: 105000
Sample stageCooling holder cryogen: NITROGEN
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

+
Image processing

Final reconstructionApplied symmetry - Helical parameters - Δz: 4.796 Å
Applied symmetry - Helical parameters - Δ&Phi: 1.34 °
Applied symmetry - Helical parameters - Axial symmetry: C1 (asymmetric)
Resolution.type: BY AUTHOR / Resolution: 2.03 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: RELION (ver. 4.0.0) / Number images used: 63528
CTF correctionSoftware - Name: CTFFIND (ver. 4.1) / Type: NONE
Startup modelType of model: NONE
Final angle assignmentType: NOT APPLICABLE / Software - Name: RELION (ver. 4.0.0)
FSC plot (resolution estimation)

+
About Yorodumi

-
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

Thousand views of thousand structures

  • Yorodumi is a browser for structure data from EMDB, PDB, SASBDB, etc.
  • This page is also the successor to EM Navigator detail page, and also detail information page/front-end page for Omokage search.
  • The word "yorodu" (or yorozu) is an old Japanese word meaning "ten thousand". "mi" (miru) is to see.

Related info.:EMDB / PDB / SASBDB / Comparison of 3 databanks / Yorodumi Search / Aug 31, 2016. New EM Navigator & Yorodumi / Yorodumi Papers / Jmol/JSmol / Function and homology information / Changes in new EM Navigator and Yorodumi

Read more