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- EMDB-63732: Structure of flagellar hook at 3.50 angstroms resolution,conforma... -

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Basic information

Entry
Database: EMDB / ID: EMD-63732
TitleStructure of flagellar hook at 3.50 angstroms resolution,conformation 3.
Map datamap_half_B
Sample
  • Organelle or cellular component: FlgE
    • Protein or peptide: Flagellar hook protein FlgE
Keywordsflagellum / hook / FlgE / PROTEIN FIBRIL
Function / homology
Function and homology information


bacterial-type flagellum hook / bacterial-type flagellum basal body / bacterial-type flagellum-dependent swarming motility / bacterial-type flagellum / cytosol
Similarity search - Function
Flagellar hook protein FlgE superfamily / Flagellar hook protein FlgE / Flagellar basal body protein FlaE D2 domain / Flagellar hook-basal body protein, FlgE/F/G / Flagellar hook-basal body protein, FlgE/F/G-like / : / Flagellar hook protein FlgE/F/G D1 domain / Flagellar basal body rod protein, conserved site / Flagella basal body rod proteins signature. / Flagellar basal body rod protein, N-terminal ...Flagellar hook protein FlgE superfamily / Flagellar hook protein FlgE / Flagellar basal body protein FlaE D2 domain / Flagellar hook-basal body protein, FlgE/F/G / Flagellar hook-basal body protein, FlgE/F/G-like / : / Flagellar hook protein FlgE/F/G D1 domain / Flagellar basal body rod protein, conserved site / Flagella basal body rod proteins signature. / Flagellar basal body rod protein, N-terminal / Flagellar basal-body/hook protein, C-terminal domain / Flagella basal body rod protein / Flagellar basal body rod FlgEFG protein C-terminal
Similarity search - Domain/homology
Flagellar hook protein FlgE
Similarity search - Component
Biological speciesSalmonella enterica subsp. enterica serovar Typhimurium str. LT2 (bacteria)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.5 Å
AuthorsChen LX / Jiang WX / Cheng XQ / Dong X / Xing Q
Funding support China, 2 items
OrganizationGrant numberCountry
National Natural Science Foundation of China (NSFC)32371277 China
National Natural Science Foundation of China (NSFC)32301028 China
CitationJournal: To Be Published
Title: Structure of flagellar hook at 3.50 angstroms resolution,conformation 3.
Authors: Chen LX / Jiang WX / Cheng XQ / Dong X / Xing Q
History
DepositionMar 13, 2025-
Header (metadata) releaseMar 18, 2026-
Map releaseMar 18, 2026-
UpdateMar 18, 2026-
Current statusMar 18, 2026Processing site: PDBc / Status: Released

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Structure visualization

Supplemental images

emd_63732.png

Downloads & links

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Map

FileDownload / File: emd_63732.map.gz / Format: CCP4 / Size: 824 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Annotationmap_half_B
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
0.85 Å/pix.
x 600 pix.
= 510. Å		0.85 Å/pix.
x 600 pix.
= 510. Å		0.85 Å/pix.
x 600 pix.
= 510. Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 0.85 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.075
Minimum - Maximum-0.53413045 - 0.75081325
Average (Standard dev.)0.0007971687 (±0.032089997)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions600600600
Spacing600600600
CellA=B=C: 510.0 Å
α=β=γ: 90.0 °

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Supplemental data

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Half map: density map of hook-conformer3

Fileemd_63732_half_map_1.map
Annotationdensity map of hook-conformer3
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: map half A

Fileemd_63732_half_map_2.map
Annotationmap_half_A
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Sample components

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Entire : FlgE

EntireName: FlgE
Components
  • Organelle or cellular component: FlgE
    • Protein or peptide: Flagellar hook protein FlgE

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Supramolecule #1: FlgE

SupramoleculeName: FlgE / type: organelle_or_cellular_component / ID: 1 / Parent: 0 / Macromolecule list: all
Source (natural)Organism: Salmonella enterica subsp. enterica serovar Typhimurium str. LT2 (bacteria)

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Macromolecule #1: Flagellar hook protein FlgE

MacromoleculeName: Flagellar hook protein FlgE / type: protein_or_peptide / ID: 1 / Number of copies: 44 / Enantiomer: LEVO
Source (natural)Organism: Salmonella enterica subsp. enterica serovar Typhimurium str. LT2 (bacteria)
Molecular weightTheoretical: 42.101957 KDa
SequenceString: SFSQAVSGLN AAATNLDVIG NNIANSATYG FKSGTASFAD MFAGSKVGLG VKVAGITQDF TDGTTTNTGR GLDVAISQNG FFRLVDSNG SVFYSRNGQF KLDENRNLVN MQGMQLTGYP ATGTPPTIQQ GANPAPITIP NTLMAAKSTT TASMQINLNS T DPVPSKTP ...String:
SFSQAVSGLN AAATNLDVIG NNIANSATYG FKSGTASFAD MFAGSKVGLG VKVAGITQDF TDGTTTNTGR GLDVAISQNG FFRLVDSNG SVFYSRNGQF KLDENRNLVN MQGMQLTGYP ATGTPPTIQQ GANPAPITIP NTLMAAKSTT TASMQINLNS T DPVPSKTP FSVSDADSYN KKGTVTVYDS QGNAHDMNVY FVKTKDNEWA VYTHDSSDPA ATAPTTASTT LKFNENGILE SG GTVNITT GTINGATAAT FSLSFLNSMQ QNTGANNIVA TNQNGYKPGD LVSYQINNDG TVVGNYSNEQ EQVLGQIVLA NFA NNEGLA SQGDNVWAAT QASGVALLGT AGSGNFGKLT NGALEASNVD LSKELVNMIV AQRNYQSNAQ TIKTQDQILN TLVN LR

UniProtKB: Flagellar hook protein FlgE

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Experimental details

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Structure determination

Methodcryo EM
Processingsingle particle reconstruction
Aggregation statefilament

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Sample preparation

BufferpH: 7.4
VitrificationCryogen name: ETHANE

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Electron microscopy

MicroscopeFEI TALOS ARCTICA
Image recordingFilm or detector model: GATAN K3 (6k x 4k) / Average electron dose: 30.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: OTHER / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.0 µm / Nominal defocus min: 1.0 µm
Experimental equipment
Model: Talos Arctica / Image courtesy: FEI Company

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Image processing

CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
Startup modelType of model: NONE
Final reconstructionResolution.type: BY AUTHOR / Resolution: 3.5 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 435796
Initial angle assignmentType: NOT APPLICABLE
Final angle assignmentType: NOT APPLICABLE
FSC plot (resolution estimation)

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