[English] 日本語
Yorodumi
- EMDB-3943: Structure of the chloroplast ribosome with chl-RRF and hibernatio... -

+
Open data


ID or keywords:

Loading...

-
Basic information

Entry
Database: EMDB / ID: EMD-3943
TitleStructure of the chloroplast ribosome with chl-RRF and hibernation-promoting factor (Focused refinement of SSU)
Map datapostprocessed map of ssu resampled onto the map that was used in the refinement of the coordinate
Sample
  • Complex: Chloroplast ribosome in complex with RRF
Biological speciesSpinacia oleracea (spinach)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.0 Å
AuthorsPerez Boerema A / Aibara S / Paul B / Tobiasson V / Kimanius D / Forsberg BO / Wallden K / Lindahl E / Amunts A
CitationJournal: Nat Plants / Year: 2018
Title: Structure of the chloroplast ribosome with chl-RRF and hibernation-promoting factor.
Authors: Annemarie Perez Boerema / Shintaro Aibara / Bijoya Paul / Victor Tobiasson / Dari Kimanius / Björn O Forsberg / Karin Wallden / Erik Lindahl / A Amunts /
Abstract: Oxygenic photosynthesis produces oxygen and builds a variety of organic compounds, changing the chemistry of the air, the sea and fuelling the food chain on our planet. The photochemical reactions ...Oxygenic photosynthesis produces oxygen and builds a variety of organic compounds, changing the chemistry of the air, the sea and fuelling the food chain on our planet. The photochemical reactions underpinning this process in plants take place in the chloroplast. Chloroplasts evolved ~1.2 billion years ago from an engulfed primordial diazotrophic cyanobacterium, and chlororibosomes are responsible for synthesis of the core proteins driving photochemical reactions. Chlororibosomal activity is spatiotemporally coupled to the synthesis and incorporation of functionally essential co-factors, implying the presence of chloroplast-specific regulatory mechanisms and structural adaptation of the chlororibosome. Despite recent structural information, some of these aspects remained elusive. To provide new insights into the structural specialities and evolution, we report a comprehensive analysis of the 2.9-3.1 Å resolution electron cryo-microscopy structure of the spinach chlororibosome in complex with its recycling factor and hibernation-promoting factor. The model reveals a prominent channel extending from the exit tunnel to the chlororibosome exterior, structural re-arrangements that lead to increased surface area for translocon binding, and experimental evidence for parallel and convergent evolution of chloro- and mitoribosomes.
History
DepositionOct 18, 2017-
Header (metadata) releaseMar 7, 2018-
Map releaseMar 7, 2018-
UpdateApr 18, 2018-
Current statusApr 18, 2018Processing site: PDBe / Status: Released

-
Structure visualization

Movie
  • Surface view with section colored by density value
  • Surface level: 0.04
  • Imaged by UCSF Chimera
  • Download
  • Surface view colored by height
  • Surface level: 0.04
  • Imaged by UCSF Chimera
  • Download
Movie viewer
Structure viewerEM map:
SurfViewMolmilJmol/JSmol
Supplemental images

emd_3943.png

Downloads & links

-
Map

FileDownload / File: emd_3943.map.gz / Format: CCP4 / Size: 282.6 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Annotationpostprocessed map of ssu resampled onto the map that was used in the refinement of the coordinate
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
1.06 Å/pix.
x 420 pix.
= 445.2 Å		1.06 Å/pix.
x 420 pix.
= 445.2 Å		1.06 Å/pix.
x 420 pix.
= 445.2 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 1.06 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.04 / Movie #1: 0.04
Minimum - Maximum-0.16758476 - 0.33506143
Average (Standard dev.)0.0002899346 (±0.0062698782)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions420420420
Spacing420420420
CellA=B=C: 445.19998 Å
α=β=γ: 90.0 °

CCP4 map header:

modeImage stored as Reals
Å/pix. X/Y/Z1.061.061.06
M x/y/z420420420
origin x/y/z0.0000.0000.000
length x/y/z445.200445.200445.200
α/β/γ90.00090.00090.000
start NX/NY/NZ-128-128-128
NX/NY/NZ256256256
MAP C/R/S123
start NC/NR/NS000
NC/NR/NS420420420
D min/max/mean-0.1680.3350.000

-
Supplemental data

-
Mask #1

Fileemd_3943_msk_1.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

-
Additional map: postprocessed map of ssu not resampled onto the...

Fileemd_3943_additional_1.map
Annotationpostprocessed map of ssu not resampled onto the map that was used in the refinement of the coordinate
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

-
Additional map: unsharpened map of ssu not resampled onto the...

Fileemd_3943_additional_2.map
Annotationunsharpened map of ssu not resampled onto the map that was used in the refinement of the coordinate
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

-
Additional map: unsharpened map of ssu resampled onto the map...

Fileemd_3943_additional_3.map
Annotationunsharpened map of ssu resampled onto the map that was used in the refinement of the coordinate
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

-
Half map: halfmap 1

Fileemd_3943_half_map_1.map
Annotationhalfmap 1
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

-
Half map: halfmap 2

Fileemd_3943_half_map_2.map
Annotationhalfmap 2
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

-
Sample components

-
Entire : Chloroplast ribosome in complex with RRF

EntireName: Chloroplast ribosome in complex with RRF
Components
  • Complex: Chloroplast ribosome in complex with RRF

-
Supramolecule #1: Chloroplast ribosome in complex with RRF

SupramoleculeName: Chloroplast ribosome in complex with RRF / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#57
Source (natural)Organism: Spinacia oleracea (spinach)

-
Experimental details

-
Structure determination

Methodcryo EM
Processingsingle particle reconstruction
Aggregation stateparticle

-
Sample preparation

BufferpH: 7.4
VitrificationCryogen name: ETHANE

-
Electron microscopy

MicroscopeFEI TITAN KRIOS
Image recordingFilm or detector model: GATAN K2 QUANTUM (4k x 4k) / Detector mode: COUNTING / Average electron dose: 4.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

-
Image processing

Final reconstructionResolution.type: BY AUTHOR / Resolution: 3.0 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 130300
Initial angle assignmentType: PROJECTION MATCHING
Final angle assignmentType: PROJECTION MATCHING

-
Atomic model buiding 1

RefinementSpace: REAL / Protocol: AB INITIO MODEL

+
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