[English] 日本語
Yorodumi
- PDB-8aky: 290 A SynPspA rod after incubation with ATP -

+
Open data


ID or keywords:

Loading...

-
Basic information

Entry
Database: PDB / ID: 8aky
Title290 A SynPspA rod after incubation with ATP
ComponentsChloroplast membrane-associated 30 kD protein
KeywordsLIPID BINDING PROTEIN / Nucleotide binding / Helical assembly / ESCRT-III fold / Membrane remodeling
Function / homologyPspA/IM30 / PspA/IM30 family / Chloroplast membrane-associated 30 kD protein
Function and homology information
Biological speciesSynechocystis sp. PCC 6803 (bacteria)
MethodELECTRON MICROSCOPY / helical reconstruction / cryo EM / Resolution: 4.7 Å
AuthorsJunglas, B. / Hudina, E. / Schoennenbeck, P. / Ritter, I. / Santiago-Schuebel, B. / Huesgen, P. / Sachse, C.
Funding supportEuropean Union, 1items
OrganizationGrant numberCountry
European Union (EU)European Union
CitationJournal: Nat Struct Mol Biol / Year: 2025
Title: Structural plasticity of bacterial ESCRT-III protein PspA in higher-order assemblies.
Authors: Benedikt Junglas / Esther Hudina / Philipp Schönnenbeck / Ilona Ritter / Anja Heddier / Beatrix Santiago-Schübel / Pitter F Huesgen / Dirk Schneider / Carsten Sachse /
Abstract: Eukaryotic members of the endosome sorting complex required for transport-III (ESCRT-III) family have been shown to form diverse higher-order assemblies. The bacterial phage shock protein A (PspA) ...Eukaryotic members of the endosome sorting complex required for transport-III (ESCRT-III) family have been shown to form diverse higher-order assemblies. The bacterial phage shock protein A (PspA) has been identified as a member of the ESCRT-III superfamily, and PspA homo-oligomerizes to form rod-shaped assemblies. As observed for eukaryotic ESCRT-III, PspA forms tubular assemblies of varying diameters. Using electron cryo-electron microscopy, we determined 61 Synechocystis PspA structures and observed in molecular detail how the structural plasticity of PspA rods is mediated by conformational changes at three hinge regions in the monomer and by the fixed and changing molecular contacts between protomers. Moreover, we reduced and increased the structural plasticity of PspA rods by removing the loop connecting helices α3/α4 and the addition of nucleotides, respectively. Based on our analysis of PspA-mediated membrane remodeling, we suggest that the observed mode of structural plasticity is a prerequisite for the biological function of ESCRT-III members.
History
DepositionJul 31, 2022Deposition site: PDBE / Processing site: PDBE
Revision 1.0Feb 14, 2024Provider: repository / Type: Initial release
Revision 1.1Sep 4, 2024Group: Data collection / Database references / Category: citation / citation_author / em_admin
Item: _citation.country / _citation.journal_abbrev ..._citation.country / _citation.journal_abbrev / _citation.journal_id_CSD / _citation.journal_id_ISSN / _citation.pdbx_database_id_DOI / _citation.pdbx_database_id_PubMed / _citation.title / _citation.year / _em_admin.last_update

-
Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

-
Assembly

Deposited unit
0: Chloroplast membrane-associated 30 kD protein
1: Chloroplast membrane-associated 30 kD protein
2: Chloroplast membrane-associated 30 kD protein
3: Chloroplast membrane-associated 30 kD protein
4: Chloroplast membrane-associated 30 kD protein
5: Chloroplast membrane-associated 30 kD protein
6: Chloroplast membrane-associated 30 kD protein
7: Chloroplast membrane-associated 30 kD protein
A: Chloroplast membrane-associated 30 kD protein
B: Chloroplast membrane-associated 30 kD protein
C: Chloroplast membrane-associated 30 kD protein
D: Chloroplast membrane-associated 30 kD protein
E: Chloroplast membrane-associated 30 kD protein
F: Chloroplast membrane-associated 30 kD protein
G: Chloroplast membrane-associated 30 kD protein
H: Chloroplast membrane-associated 30 kD protein
I: Chloroplast membrane-associated 30 kD protein
J: Chloroplast membrane-associated 30 kD protein
K: Chloroplast membrane-associated 30 kD protein
L: Chloroplast membrane-associated 30 kD protein
M: Chloroplast membrane-associated 30 kD protein
N: Chloroplast membrane-associated 30 kD protein
O: Chloroplast membrane-associated 30 kD protein
P: Chloroplast membrane-associated 30 kD protein
Q: Chloroplast membrane-associated 30 kD protein
R: Chloroplast membrane-associated 30 kD protein
S: Chloroplast membrane-associated 30 kD protein
T: Chloroplast membrane-associated 30 kD protein
U: Chloroplast membrane-associated 30 kD protein
V: Chloroplast membrane-associated 30 kD protein
W: Chloroplast membrane-associated 30 kD protein
X: Chloroplast membrane-associated 30 kD protein
Y: Chloroplast membrane-associated 30 kD protein
Z: Chloroplast membrane-associated 30 kD protein
a: Chloroplast membrane-associated 30 kD protein
b: Chloroplast membrane-associated 30 kD protein
c: Chloroplast membrane-associated 30 kD protein
d: Chloroplast membrane-associated 30 kD protein
e: Chloroplast membrane-associated 30 kD protein
f: Chloroplast membrane-associated 30 kD protein
g: Chloroplast membrane-associated 30 kD protein
h: Chloroplast membrane-associated 30 kD protein
i: Chloroplast membrane-associated 30 kD protein
j: Chloroplast membrane-associated 30 kD protein
k: Chloroplast membrane-associated 30 kD protein
l: Chloroplast membrane-associated 30 kD protein
m: Chloroplast membrane-associated 30 kD protein
n: Chloroplast membrane-associated 30 kD protein
o: Chloroplast membrane-associated 30 kD protein
p: Chloroplast membrane-associated 30 kD protein
q: Chloroplast membrane-associated 30 kD protein
r: Chloroplast membrane-associated 30 kD protein
s: Chloroplast membrane-associated 30 kD protein
t: Chloroplast membrane-associated 30 kD protein
u: Chloroplast membrane-associated 30 kD protein
v: Chloroplast membrane-associated 30 kD protein
w: Chloroplast membrane-associated 30 kD protein
x: Chloroplast membrane-associated 30 kD protein
y: Chloroplast membrane-associated 30 kD protein
z: Chloroplast membrane-associated 30 kD protein


Theoretical massNumber of molelcules
Total (without water)1,685,86560
Polymers1,685,86560
Non-polymers00
Water00
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: electron microscopy
TypeNameSymmetry operationNumber
identity operation1_5551
Buried area279930 Å2
ΔGint-1896 kcal/mol
Surface area696120 Å2

-
Components

#1: Protein ...
Chloroplast membrane-associated 30 kD protein


Mass: 28097.758 Da / Num. of mol.: 60
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Synechocystis sp. PCC 6803 (bacteria) / Strain: PCC 6803 / Kazusa / Gene: im30 / Plasmid: pET50del
Details (production host): Based on pET50b(+) with deletion of NusA tag
Production host: Escherichia coli BL21(DE3) (bacteria) / Variant (production host): C41 / References: UniProt: P74717

-
Experimental details

-
Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: HELICAL ARRAY / 3D reconstruction method: helical reconstruction

-
Sample preparation

ComponentName: Phage shock protein A (PspA) / Type: COMPLEX / Entity ID: all / Source: RECOMBINANT
Molecular weightValue: 149.2 kDa/nm / Experimental value: NO
Source (natural)Organism: Synechocystis sp. PCC 6803 (bacteria)
Source (recombinant)Organism: Escherichia coli BL21(DE3) (bacteria) / Plasmid: pET50del
Buffer solutionpH: 8
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationCryogen name: ETHANE

-
Electron microscopy imaging

Experimental equipment
Model: Talos Arctica / Image courtesy: FEI Company
MicroscopyModel: FEI TALOS ARCTICA
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 200 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Nominal defocus max: 4000 nm / Nominal defocus min: 1000 nm
Image recordingElectron dose: 58 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k)

-
Processing

SoftwareName: UCSF ChimeraX / Version: 1.3/v9 / Classification: model building / URL: https://www.rbvi.ucsf.edu/chimerax/ / Os: macOS / Type: package
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
Helical symmertyAngular rotation/subunit: 21.2 ° / Axial rise/subunit: 6.92 Å / Axial symmetry: C4
3D reconstructionResolution: 4.7 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 44377 / Symmetry type: HELICAL

+
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