[English] 日本語
Yorodumi
- EMDB-16539: Tomogram of Serratia marcescens in the post-spanin state (2) -

+
Open data


ID or keywords:

Loading...

-
Basic information

Entry
Database: EMDB / ID: EMD-16539
TitleTomogram of Serratia marcescens in the post-spanin state (2)
Map data
Sample
  • Cell: Serratia marcescens strain BS 303, Ara-ChiR
KeywordsVirulence / Secretion / Tc toxin / Type 10 secretion system / TOXIN
Biological speciesSerratia marcescens (bacteria)
Methodelectron tomography / cryo EM
AuthorsSitsel O / Wang Z / Janning P / Kroczek L / Wagner T / Raunser S
Funding support Germany, 1 items
OrganizationGrant numberCountry
Max Planck Society Germany
CitationJournal: Nat Microbiol / Year: 2024
Title: Yersinia entomophaga Tc toxin is released by T10SS-dependent lysis of specialized cell subpopulations.
Authors: Oleg Sitsel / Zhexin Wang / Petra Janning / Lara Kroczek / Thorsten Wagner / Stefan Raunser /
Abstract: Disease-causing bacteria secrete numerous toxins to invade and subjugate their hosts. Unlike many smaller toxins, the secretion machinery of most large toxins remains enigmatic. By combining genomic ...Disease-causing bacteria secrete numerous toxins to invade and subjugate their hosts. Unlike many smaller toxins, the secretion machinery of most large toxins remains enigmatic. By combining genomic editing, proteomic profiling and cryo-electron tomography of the insect pathogen Yersinia entomophaga, we demonstrate that a specialized subset of these cells produces a complex toxin cocktail, including the nearly ribosome-sized Tc toxin YenTc, which is subsequently exported by controlled cell lysis using a transcriptionally coupled, pH-dependent type 10 secretion system (T10SS). Our results dissect the Tc toxin export process by a T10SS, identifying that T10SSs operate via a previously unknown lytic mode of action and establishing them as crucial players in the size-insensitive release of cytoplasmically folded toxins. With T10SSs directly embedded in Tc toxin operons of major pathogens, we anticipate that our findings may model an important aspect of pathogenesis in bacteria with substantial impact on agriculture and healthcare.
History
DepositionJan 25, 2023-
Header (metadata) releaseNov 22, 2023-
Map releaseNov 22, 2023-
UpdateJun 5, 2024-
Current statusJun 5, 2024Processing site: PDBe / Status: Released

-
Structure visualization

Supplemental images

emd_16539.png

Downloads & links

-
Map

FileDownload / File: emd_16539.map.gz / Format: CCP4 / Size: 1 GB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
9.29 Å/pix.
x 187 pix.
= 1737.604 Å		9.29 Å/pix.
x 1440 pix.
= 13380.479 Å		9.29 Å/pix.
x 1024 pix.
= 9515.008 Å

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

generated in cubic-lattice coordinate

Voxel sizeX=Y=Z: 9.292 Å
Density

Histogram

Histogram (log scale)
Minimum - Maximum-3888.15099999999984 - 1699.608300000000099
Average (Standard dev.)103.696510000000004 (±41.427306999999999)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin-4-1-182
Dimensions14401024187
Spacing10241440187
CellA: 9515.008 Å / B: 13380.4795 Å / C: 1737.604 Å
α=β=γ: 90.0 °

-
Supplemental data

-
Sample components

-
Entire : Serratia marcescens strain BS 303, Ara-ChiR

EntireName: Serratia marcescens strain BS 303, Ara-ChiR
Components
  • Cell: Serratia marcescens strain BS 303, Ara-ChiR

-
Supramolecule #1: Serratia marcescens strain BS 303, Ara-ChiR

SupramoleculeName: Serratia marcescens strain BS 303, Ara-ChiR / type: cell / ID: 1 / Parent: 0
Source (natural)Organism: Serratia marcescens (bacteria) / Strain: BS 303, Ara-ChiR

-
Experimental details

-
Structure determination

Methodcryo EM
Processingelectron tomography
Aggregation statecell

-
Sample preparation

BufferpH: 6 / Details: Directly frozen in SOC growth media
GridModel: Quantifoil R2/1 / Material: GOLD / Mesh: 300
VitrificationCryogen name: ETHANE
SectioningOther: NO SECTIONING
Fiducial markerManufacturer: Aurion / Diameter: 5 nm

-
Electron microscopy

MicroscopeFEI TITAN KRIOS
Specialist opticsEnergy filter - Name: GIF Bioquantum / Energy filter - Slit width: 20 eV
Image recordingFilm or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Average electron dose: 114.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsC2 aperture diameter: 50.0 µm / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 3.0 µm / Nominal defocus min: 3.0 µm / Nominal magnification: 42000
Sample stageSpecimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

-
Image processing

Final reconstructionNumber images used: 41

+
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