[English] 日本語
Yorodumi
- PDB-8p50: Photorhabdus luminescens Makes caterpillars floppy (Mcf) toxin wi... -

+
Open data


ID or keywords:

Loading...

-
Basic information

Entry
Database: PDB / ID: 8p50
TitlePhotorhabdus luminescens Makes caterpillars floppy (Mcf) toxin with the C-terminal deletion in complex with Arf3
Components
  • ADP-ribosylation factor 3
  • Toxin protein
KeywordsTOXIN / Bacterial toxin / Arf
Function / homology
Function and homology information


Synthesis of PIPs at the Golgi membrane / retrograde vesicle-mediated transport, Golgi to endoplasmic reticulum / COPI-dependent Golgi-to-ER retrograde traffic / COPI-mediated anterograde transport / vesicle-mediated transport / intracellular protein transport / Golgi membrane / GTPase activity / GTP binding / perinuclear region of cytoplasm ...Synthesis of PIPs at the Golgi membrane / retrograde vesicle-mediated transport, Golgi to endoplasmic reticulum / COPI-dependent Golgi-to-ER retrograde traffic / COPI-mediated anterograde transport / vesicle-mediated transport / intracellular protein transport / Golgi membrane / GTPase activity / GTP binding / perinuclear region of cytoplasm / extracellular exosome / plasma membrane / cytoplasm
Similarity search - Function
TcdA/TcdB toxin, pore forming domain / TcdA/TcdB pore forming domain / ADP-ribosylation factor 1-5 / Small GTPase superfamily, ARF type / Small GTPase Arf domain profile. / Sar1p-like members of the Ras-family of small GTPases / Small GTPase superfamily, ARF/SAR type / ADP-ribosylation factor family / ARF-like small GTPases; ARF, ADP-ribosylation factor / Rab subfamily of small GTPases ...TcdA/TcdB toxin, pore forming domain / TcdA/TcdB pore forming domain / ADP-ribosylation factor 1-5 / Small GTPase superfamily, ARF type / Small GTPase Arf domain profile. / Sar1p-like members of the Ras-family of small GTPases / Small GTPase superfamily, ARF/SAR type / ADP-ribosylation factor family / ARF-like small GTPases; ARF, ADP-ribosylation factor / Rab subfamily of small GTPases / Small GTP-binding protein domain / P-loop containing nucleoside triphosphate hydrolase
Similarity search - Domain/homology
GUANOSINE-5'-TRIPHOSPHATE / ADP-ribosylation factor 3 / Toxin protein
Similarity search - Component
Biological speciesPhotorhabdus luminescens (bacteria)
Homo sapiens (human)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 4.04 Å
AuthorsBelyy, A. / Heilen, P. / Hofnagel, O. / Raunser, S.
Funding support Germany, 1items
OrganizationGrant numberCountry
Max Planck Society Germany
CitationJournal: Nat Commun / Year: 2023
Title: Structure and activation mechanism of the Makes caterpillars floppy 1 toxin.
Authors: Alexander Belyy / Philipp Heilen / Philine Hagel / Oliver Hofnagel / Stefan Raunser /
Abstract: The bacterial Makes caterpillars floppy 1 (Mcf1) toxin promotes apoptosis in insects, leading to loss of body turgor and death. The molecular mechanism underlying Mcf1 intoxication is poorly ...The bacterial Makes caterpillars floppy 1 (Mcf1) toxin promotes apoptosis in insects, leading to loss of body turgor and death. The molecular mechanism underlying Mcf1 intoxication is poorly understood. Here, we present the cryo-EM structure of Mcf1 from Photorhabdus luminescens, revealing a seahorse-like shape with a head and tail. While the three head domains contain two effectors, as well as an activator-binding domain (ABD) and an autoprotease, the tail consists of two putative translocation and three putative receptor-binding domains. Rearrangement of the tail moves the C-terminus away from the ABD and allows binding of the host cell ADP-ribosylation factor 3, inducing conformational changes that position the cleavage site closer to the protease. This distinct activation mechanism that is based on a hook-loop interaction results in three autocleavage reactions and the release of two toxic effectors. Unexpectedly, the BH3-like domain containing ABD is not an active effector. Our findings allow us to understand key steps of Mcf1 intoxication at the molecular level.
History
DepositionMay 23, 2023Deposition site: PDBE / Processing site: PDBE
Revision 1.0Nov 1, 2023Provider: repository / Type: Initial release
Revision 1.1Dec 27, 2023Group: Database references / Category: citation / citation_author
Item: _citation.country / _citation.journal_abbrev ..._citation.country / _citation.journal_abbrev / _citation.journal_id_CSD / _citation.journal_id_ISSN / _citation.journal_volume / _citation.page_first / _citation.page_last / _citation.pdbx_database_id_DOI / _citation.pdbx_database_id_PubMed / _citation.title / _citation.year / _citation_author.identifier_ORCID

-
Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

-
Assembly

Deposited unit
A: Toxin protein
B: ADP-ribosylation factor 3
hetero molecules


Theoretical massNumber of molelcules
Total (without water)346,6954
Polymers346,1472
Non-polymers5472
Water00
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: electron microscopy
TypeNameSymmetry operationNumber
identity operation1_5551

-
Components

#1: Protein Toxin protein


Mass: 325211.562 Da / Num. of mol.: 1 / Mutation: C1397A
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Photorhabdus luminescens (bacteria) / Gene: mcf / Production host: Escherichia coli (E. coli) / References: UniProt: Q8KT65
#2: Protein ADP-ribosylation factor 3


Mass: 20935.895 Da / Num. of mol.: 1 / Mutation: Q71L
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: ARF3 / Production host: Escherichia coli (E. coli) / References: UniProt: P61204
#3: Chemical ChemComp-GTP / GUANOSINE-5'-TRIPHOSPHATE


Mass: 523.180 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C10H16N5O14P3 / Feature type: SUBJECT OF INVESTIGATION / Comment: GTP, energy-carrying molecule*YM
#4: Chemical ChemComp-MG / MAGNESIUM ION


Mass: 24.305 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Mg / Feature type: SUBJECT OF INVESTIGATION
Has ligand of interestY

-
Experimental details

-
Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction

-
Sample preparation

Component
IDNameTypeEntity IDParent-IDSource
1Photorhabdus luminescens Makes caterpillars floppy (Mcf) toxin with the C-terminal deletion in complex with Arf3COMPLEX#1-#20RECOMBINANT
2Toxin proteinCOMPLEX#11RECOMBINANT
3ADP-ribosylation factor 3COMPLEX#21RECOMBINANT
Molecular weightExperimental value: NO
Source (natural)
IDEntity assembly-IDOrganismNcbi tax-ID
22Photorhabdus luminescens (bacteria)29488
33Homo sapiens (human)9606
Source (recombinant)
IDEntity assembly-IDOrganismNcbi tax-ID
22Escherichia coli (E. coli)562
33Escherichia coli (E. coli)562
Buffer solutionpH: 8
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
Specimen supportGrid material: COPPER / Grid mesh size: 400 divisions/in. / Grid type: C-flat-2/1
VitrificationInstrument: FEI VITROBOT MARK III / Cryogen name: ETHANE / Humidity: 100 %

-
Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: FEI TITAN KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: SPOT SCAN
Electron lensMode: BRIGHT FIELD / Nominal defocus max: 2500 nm / Nominal defocus min: 1000 nm
Image recordingElectron dose: 62.6 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) / Num. of grids imaged: 1 / Num. of real images: 18671

-
Processing

EM software
IDNameCategory
4CTFFINDCTF correction
7ISOLDEmodel fitting
8iMODFITmodel fitting
10PHENIXmodel refinement
11cryoSPARCinitial Euler assignment
12cryoSPARCfinal Euler assignment
14cryoSPARC3D reconstruction
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
SymmetryPoint symmetry: C1 (asymmetric)
3D reconstructionResolution: 4.04 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 101942 / Symmetry type: POINT
Atomic model buildingProtocol: FLEXIBLE FIT / Space: REAL
Atomic model building

3D fitting-ID: 1

IDPDB-IDPdb chain-IDAccession codeChain-IDInitial refinement model-IDSource nameType
16II6

6ii6

C6II6C1PDBexperimental model
2
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.00413967
ELECTRON MICROSCOPYf_angle_d0.87418916
ELECTRON MICROSCOPYf_dihedral_angle_d14.2515206
ELECTRON MICROSCOPYf_chiral_restr0.0482100
ELECTRON MICROSCOPYf_plane_restr0.012488

+
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