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- PDB-9lh3: Vibrio cholerae cytolysin cradle loop mutant-Y194A half barrel pr... -

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Basic information

Entry
Database: PDB / ID: 9lh3
TitleVibrio cholerae cytolysin cradle loop mutant-Y194A half barrel pre-pore model
ComponentsCytolysin VCC
KeywordsTOXIN / Membrane Protein / Heptameric Half-barrel Prepore / VCC mutant / Pore-forming toxin
Function / homology
Function and homology information


cytolysis in another organism / extracellular region
Similarity search - Function
Hemolytic toxin, N-terminal / Hemolytic toxin, N-terminal domain superfamily / Hemolysin, pre-stem domain / Hemolytic toxin N terminal / Hemolysin, beta-prism lectin / Beta-prism lectin / Leukocidin/Hemolysin toxin / Leukocidin/Hemolysin toxin family / Leukocidin/porin MspA superfamily / Jacalin-like lectin domain superfamily ...Hemolytic toxin, N-terminal / Hemolytic toxin, N-terminal domain superfamily / Hemolysin, pre-stem domain / Hemolytic toxin N terminal / Hemolysin, beta-prism lectin / Beta-prism lectin / Leukocidin/Hemolysin toxin / Leukocidin/Hemolysin toxin family / Leukocidin/porin MspA superfamily / Jacalin-like lectin domain superfamily / Ricin-type beta-trefoil / Lectin domain of ricin B chain profile. / Ricin B, lectin domain / Ricin B-like lectins
Similarity search - Domain/homology
Biological speciesVibrio cholerae (bacteria)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.51 Å
AuthorsChattopadhyay, K. / Dutta, S. / Chatterjee, A. / Naskar, P. / Singh, M.
Funding support India, 5items
OrganizationGrant numberCountry
Department of Biotechnology (DBT, India)BT/INF/22/SP22844/2017 India
Department of Science & Technology (DST, India)SR/FST/LSII-039/2015 India
Council of Scientific & Industrial Research (CSIR)09/0079(13652)/2022-EMR-I India
Science and Engineering Research Board (SERB)CRG/2022/002674 India
Science and Engineering Research Board (SERB)STR/2022/000006 India
CitationJournal: To Be Published
Title: Half barrel Pre-pore state of Y194A Vibrio cholerae cytolysin mutant in liposome.
Authors: Chattopadhyay, K. / Dutta, S. / Chatterjee, A. / Naskar, P. / Singh, M.
History
DepositionJan 11, 2025Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Oct 1, 2025Provider: repository / Type: Initial release
Revision 1.0Oct 1, 2025Data content type: EM metadata / Data content type: EM metadata / Provider: repository / Type: Initial release
Revision 1.0Oct 1, 2025Data content type: Half map / Part number: 1 / Data content type: Half map / Provider: repository / Type: Initial release
Revision 1.0Oct 1, 2025Data content type: Half map / Part number: 2 / Data content type: Half map / Provider: repository / Type: Initial release
Revision 1.0Oct 1, 2025Data content type: Image / Data content type: Image / Provider: repository / Type: Initial release
Revision 1.0Oct 1, 2025Data content type: Primary map / Data content type: Primary map / Provider: repository / Type: Initial release

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: Cytolysin VCC
B: Cytolysin VCC
C: Cytolysin VCC
D: Cytolysin VCC
E: Cytolysin VCC
F: Cytolysin VCC
G: Cytolysin VCC


Theoretical massNumber of molelcules
Total (without water)451,9697
Polymers451,9697
Non-polymers00
Water00
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: electron microscopy, not applicable
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

#1: Protein
Cytolysin VCC / Hemolysin


Mass: 64567.043 Da / Num. of mol.: 7 / Mutation: Y194A
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Vibrio cholerae (bacteria) / Gene: hlyA, D6U24_17690, KIN13_00515 / Production host: Escherichia coli (E. coli) / References: UniProt: A0A0H6SZL4
Has protein modificationY

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Experimental details

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Experiment

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

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Sample preparation

ComponentName: Half-barrel Heptameric Pre-pore state of Y194A Vibrio cholerae cytolysin mutant in liposome.
Type: COMPLEX / Entity ID: all / Source: RECOMBINANT
Molecular weightExperimental value: NO
Source (natural)Organism: Vibrio cholerae (bacteria)
Source (recombinant)Organism: Escherichia coli (E. coli)
Buffer solutionpH: 8
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationCryogen name: ETHANE

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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: OTHER
Electron lensMode: BRIGHT FIELD / Nominal defocus max: 7500 nm / Nominal defocus min: 1750 nm
Image recordingElectron dose: 42 e/Å2 / Film or detector model: GATAN K2 SUMMIT (4k x 4k)

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Processing

CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 3.51 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 70872 / Symmetry type: POINT

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