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- EMDB-46667: Mycobacteriophage Bxb1 portal and connector assembly - Head-to-ta... -

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Basic information

Entry
Database: EMDB / ID: EMD-46667
TitleMycobacteriophage Bxb1 portal and connector assembly - Head-to-tail stopper and tail terminator C6 local refinement
Map dataMycobacteriophage Bxb1 portal and connector assembly - Head-to-tail stopper and tail terminator C6 local refinement
Sample
  • Virus: Mycobacterium phage Bxb1 (virus)
KeywordsBacteriophage / Mycobacteriophage Bxb1 / portal / VIRUS
Biological speciesMycobacterium phage Bxb1 (virus)
Methodsingle particle reconstruction / cryo EM / Resolution: 2.68 Å
AuthorsFreeman KG
Funding support United States, Taiwan, 8 items
OrganizationGrant numberCountry
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)K99AI173544 United States
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)GM116884 United States
Howard Hughes Medical Institute (HHMI)GT12053 United States
National Institutes of Health/Office of the DirectorS10 OD025009 United States
National Institutes of Health/Office of the DirectorS10 OD019995 United States
National Institutes of Health/Office of the DirectorS10OD032467 United States
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)U24GM129547 United States
Academia Sinica (Taiwan)AS-IDR-110-06 Taiwan
CitationJournal: To Be Published
Title: Structure and infection dynamics of mycobacteriophage Bxb1
Authors: Freeman KG / Mondal S / Macale LS / Podgorski J / White SJ / Silva B / Ortiz V / Huet A / Narsico JT / Ho MC / Jacobs-Sera D / Lowary TL / Conway JF / Park D / Hatfull GF
History
DepositionAug 20, 2024-
Header (metadata) releaseSep 18, 2024-
Map releaseSep 18, 2024-
UpdateSep 18, 2024-
Current statusSep 18, 2024Processing site: RCSB / Status: Released

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Structure visualization

Supplemental images

emd_46667.png

Downloads & links

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Map

FileDownload / File: emd_46667.map.gz / Format: CCP4 / Size: 421.9 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
AnnotationMycobacteriophage Bxb1 portal and connector assembly - Head-to-tail stopper and tail terminator C6 local refinement
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
1.12 Å/pix.
x 480 pix.
= 537.6 Å		1.12 Å/pix.
x 480 pix.
= 537.6 Å		1.12 Å/pix.
x 480 pix.
= 537.6 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 1.12 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.2
Minimum - Maximum-0.5651857 - 1.0608022
Average (Standard dev.)-0.0027086933 (±0.01995855)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions480480480
Spacing480480480
CellA=B=C: 537.6 Å
α=β=γ: 90.0 °

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Supplemental data

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Mask #1

Fileemd_46667_msk_1.map
Projections & Slices
AxesZYX

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Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: Half Map A

Fileemd_46667_half_map_1.map
AnnotationHalf Map A
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: Half Map B

Fileemd_46667_half_map_2.map
AnnotationHalf Map B
Projections & Slices
AxesZYX

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Slices (1/2)
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Histogram

Histogram (log scale)

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Sample components

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Entire : Mycobacterium phage Bxb1

EntireName: Mycobacterium phage Bxb1 (virus)
Components
  • Virus: Mycobacterium phage Bxb1 (virus)

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Supramolecule #1: Mycobacterium phage Bxb1

SupramoleculeName: Mycobacterium phage Bxb1 / type: virus / ID: 1 / Parent: 0 / Macromolecule list: #1-#5
Details: Portal and connector complex of Bxb1, containing five protein subunit types. This is a composite map, and related entries for consensus and locally refined maps are noted.
NCBI-ID: 2902907 / Sci species name: Mycobacterium phage Bxb1 / Sci species strain: Mycobacterium phage Bxb1 / Virus type: VIRION / Virus isolate: SPECIES / Virus enveloped: No / Virus empty: No
Host (natural)Organism: Mycolicibacterium smegmatis MC2 155 (bacteria)

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Experimental details

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Structure determination

Methodcryo EM
Processingsingle particle reconstruction
Aggregation stateparticle

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Sample preparation

Concentration10 mg/mL
BufferpH: 7.5
Component:
ConcentrationFormulaName
10.0 mMC4H11NO3Tris
1.0 mMMgSO4Magnesium sulfate
68.44 mMNaClSodium chloride
1.0 mMCaCl2Calcium chloride
VitrificationCryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 283.15 K / Instrument: FEI VITROBOT MARK IV

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Electron microscopy

MicroscopeFEI TITAN KRIOS
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: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.0 µm / Nominal defocus min: 0.8 µm
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Startup modelType of model: INSILICO MODEL
Final reconstructionApplied symmetry - Point group: C6 (6 fold cyclic) / Resolution.type: BY AUTHOR / Resolution: 2.68 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 22590
Initial angle assignmentType: MAXIMUM LIKELIHOOD
Final angle assignmentType: MAXIMUM LIKELIHOOD
FSC plot (resolution estimation)

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