[English] 日本語
Yorodumi
- EMDB-49258: Coiled-coil bundlemer nanotube, R3K (15 proto-filaments) -

+
Open data


ID or keywords:

Loading...

-
Basic information

Entry
Database: EMDB / ID: EMD-49258
TitleCoiled-coil bundlemer nanotube, R3K (15 proto-filaments)
Map data
Sample
  • Complex: Coiled-coil bundlemer nanotube, R3K (15 proto-filaments)
    • Protein or peptide: R3K nanotube
KeywordsSynthetic Construct / Nanotube / Bundlemer / coiled-coil / PROTEIN FIBRIL
Biological speciessynthetic construct (others)
Methodhelical reconstruction / cryo EM / Resolution: 3.93 Å
AuthorsDas A / Conticello V
Funding support United States, 1 items
OrganizationGrant numberCountry
National Science Foundation (NSF, United States) United States
CitationJournal: To Be Published
Title: Coiled-coil bundlemer nanotube, R3K (15 proto-filaments)
Authors: Das A / Conticello V
History
DepositionFeb 16, 2025-
Header (metadata) releaseFeb 18, 2026-
Map releaseFeb 18, 2026-
UpdateFeb 18, 2026-
Current statusFeb 18, 2026Processing site: RCSB / Status: Released

-
Structure visualization

Supplemental images

emd_49258.png

Downloads & links

-
Map

FileDownload / File: emd_49258.map.gz / Format: CCP4 / Size: 166.9 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
0.84 Å/pix.
x 766 pix.
= 644.359 Å		0.84 Å/pix.
x 239 pix.
= 201.047 Å		0.84 Å/pix.
x 239 pix.
= 201.047 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

generated in cubic-lattice coordinate

Voxel sizeX=Y=Z: 0.8412 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.374
Minimum - Maximum-0.6040545 - 1.2822658
Average (Standard dev.)0.057045415 (±0.15395659)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin28128117
Dimensions239239766
Spacing239239766
CellA: 201.04681 Å / B: 201.04681 Å / C: 644.35925 Å
α=β=γ: 90.0 °

-
Supplemental data

-
Additional map: Un-cropped primary map

Fileemd_49258_additional_1.map
AnnotationUn-cropped primary map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

-
Half map: #1

Fileemd_49258_half_map_1.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

-
Half map: #2

Fileemd_49258_half_map_2.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

-
Sample components

-
Entire : Coiled-coil bundlemer nanotube, R3K (15 proto-filaments)

EntireName: Coiled-coil bundlemer nanotube, R3K (15 proto-filaments)
Components
  • Complex: Coiled-coil bundlemer nanotube, R3K (15 proto-filaments)
    • Protein or peptide: R3K nanotube

-
Supramolecule #1: Coiled-coil bundlemer nanotube, R3K (15 proto-filaments)

SupramoleculeName: Coiled-coil bundlemer nanotube, R3K (15 proto-filaments)
type: complex / ID: 1 / Parent: 0 / Macromolecule list: all
Source (natural)Organism: synthetic construct (others)

-
Macromolecule #1: R3K nanotube

MacromoleculeName: R3K nanotube / type: protein_or_peptide / ID: 1 / Number of copies: 144 / Enantiomer: LEVO
Source (natural)Organism: synthetic construct (others)
Molecular weightTheoretical: 3.142652 KDa
SequenceString:
DGKIEGMAEA IKKMAYNIAD MAGRIWGEA(NH2)

-
Experimental details

-
Structure determination

Methodcryo EM
Processinghelical reconstruction
Aggregation statefilament

-
Sample preparation

BufferpH: 4.5
VitrificationCryogen name: ETHANE

-
Electron microscopy

MicroscopeFEI TALOS ARCTICA
Image recordingFilm or detector model: GATAN K3 BIOCONTINUUM (6k x 4k) / Average electron dose: 50.0 e/Å2
Electron beamAcceleration voltage: 200 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.5 µm / Nominal defocus min: 0.6 µm
Experimental equipment
Model: Talos Arctica / Image courtesy: FEI Company

+
Image processing

Final reconstructionApplied symmetry - Helical parameters - Δz: 4.441 Å
Applied symmetry - Helical parameters - Δ&Phi: 24.347 °
Applied symmetry - Helical parameters - Axial symmetry: C1 (asymmetric)
Resolution.type: BY AUTHOR / Resolution: 3.93 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: cryoSPARC / Number images used: 66965
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
Startup modelType of model: NONE
Final angle assignmentType: NOT APPLICABLE
FSC plot (resolution estimation)

-
Atomic model buiding 1

RefinementOverall B value: 105.5
Output model

PDB-9ncj:
Coiled-coil bundlemer nanotube, R3K (15 proto-filaments)

+
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