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- EMDB-38541: Prohead portal vertex of bacteriophage lambda -

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ID or keywords:

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Basic information

Entry
Database: EMDB / ID: EMD-38541
TitleProhead portal vertex of bacteriophage lambda
Map data
Sample
  • Virus: Escherichia phage Lambda (virus)
    • Protein or peptide: Portal protein B
    • Protein or peptide: Major capsid protein
Keywordscaudovirales / siphoviridae / portal vertex / portal / capsid / connector/neck / tail / delivery device / B-DNA / phage lambda / VIRAL PROTEIN
Function / homology
Function and homology information


symbiont genome ejection through host cell envelope, long flexible tail mechanism / viral portal complex / T=7 icosahedral viral capsid / virion assembly / viral capsid / host cell cytoplasm / structural molecule activity / DNA binding
Similarity search - Function
Phage portal protein, lambda family / Phage portal protein, lambda family / Major capsid protein GpE / Phage major capsid protein E
Similarity search - Domain/homology
Portal protein B / Major capsid protein
Similarity search - Component
Biological speciesEscherichia phage Lambda (virus)
Methodsingle particle reconstruction / cryo EM / Resolution: 5.58 Å
AuthorsWang JW / Gu ZW
Funding support China, 2 items
OrganizationGrant numberCountry
National Natural Science Foundation of China (NSFC)32371254 China
National Natural Science Foundation of China (NSFC)32171190 China
CitationJournal: To Be Published
Title: Structural morphing in the viral portal vertex of bacteriophage lambda
Authors: Wang JW / Gu ZW
History
DepositionJan 2, 2024-
Header (metadata) releaseApr 10, 2024-
Map releaseApr 10, 2024-
UpdateApr 10, 2024-
Current statusApr 10, 2024Processing site: PDBj / Status: Released

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Structure visualization

Supplemental images

emd_38541.png

Downloads & links

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Map

FileDownload / File: emd_38541.map.gz / Format: CCP4 / Size: 64 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
1.31 Å/pix.
x 256 pix.
= 334.474 Å		1.31 Å/pix.
x 256 pix.
= 334.474 Å		1.31 Å/pix.
x 256 pix.
= 334.474 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 1.30654 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.3
Minimum - Maximum-0.43370593 - 0.82636815
Average (Standard dev.)0.0030183168 (±0.09740136)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions256256256
Spacing256256256
CellA=B=C: 334.47424 Å
α=β=γ: 90.0 °

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Supplemental data

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Half map: #1

Fileemd_38541_half_map_1.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: #2

Fileemd_38541_half_map_2.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Sample components

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Entire : Escherichia phage Lambda

EntireName: Escherichia phage Lambda (virus)
Components
  • Virus: Escherichia phage Lambda (virus)
    • Protein or peptide: Portal protein B
    • Protein or peptide: Major capsid protein

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Supramolecule #1: Escherichia phage Lambda

SupramoleculeName: Escherichia phage Lambda / type: virus / ID: 1 / Parent: 0 / Macromolecule list: all / NCBI-ID: 2681611 / Sci species name: Escherichia phage Lambda / Virus type: VIRION / Virus isolate: STRAIN / Virus enveloped: No / Virus empty: Yes

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Macromolecule #1: Portal protein B

MacromoleculeName: Portal protein B / type: protein_or_peptide / ID: 1 / Number of copies: 12 / Enantiomer: LEVO
Source (natural)Organism: Escherichia phage Lambda (virus)
Molecular weightTheoretical: 59.529609 KDa
Recombinant expressionOrganism: Escherichia phage Lambda (virus)
SequenceString: MKTPTIPTLL GPDGMTSLRE YAGYHGGGSG FGGQLRSWNP PSESVDAALL PNFTRGNARA DDLVRNNGYA ANAIQLHQDH IVGSFFRLS HRPSWRYLGI GEEEARAFSR EVEAAWKEFA EDDCCCIDVE RKRTFTMMIR EGVAMHAFNG ELFVQATWDT S SSRLFRTQ ...String:
MKTPTIPTLL GPDGMTSLRE YAGYHGGGSG FGGQLRSWNP PSESVDAALL PNFTRGNARA DDLVRNNGYA ANAIQLHQDH IVGSFFRLS HRPSWRYLGI GEEEARAFSR EVEAAWKEFA EDDCCCIDVE RKRTFTMMIR EGVAMHAFNG ELFVQATWDT S SSRLFRTQ FRMVSPKRIS NPNNTGDSRN CRAGVQINDS GAALGYYVSE DGYPGWMPQK WTWIPRELPG GRASFIHVFE PV EDGQTRG ANVFYSVMEQ MKMLDTLQNT QLQSAIVKAM YAATIESELD TQSAMDFILG ANSQEQRERL TGWIGEIAAY YAA APVRLG GAKVPHLMPG DSLNLQTAQD TDNGYSVFEQ SLLRYIAAGL GVSYEQLSRN YAQMSYSTAR ASANESWAYF MGRR KFVAS RQASQMFLCW LEEAIVRRVV TLPSKARFSF QEARSAWGNC DWIGSGRMAI DGLKEVQEAV MLIEAGLSTY EKECA KRGD DYQEIFAQQV RETMERRAAG LKPPAWAAAA FESGLRQSTE EEKSDSRAA

UniProtKB: Portal protein B

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Macromolecule #2: Major capsid protein

MacromoleculeName: Major capsid protein / type: protein_or_peptide / ID: 2 / Number of copies: 30 / Enantiomer: LEVO
Source (natural)Organism: Escherichia phage Lambda (virus)
Molecular weightTheoretical: 38.22916 KDa
Recombinant expressionOrganism: Escherichia phage Lambda (virus)
SequenceString: MSMYTTAQLL AANEQKFKFD PLFLRLFFRE SYPFTTEKVY LSQIPGLVNM ALYVSPIVSG EVIRSRGGST SEFTPGYVKP KHEVNPQMT LRRLPDEDPQ NLADPAYRRR RIIMQNMRDE ELAIAQVEEM QAVSAVLKGK YTMTGEAFDP VEVDMGRSEE N NITQSGGT ...String:
MSMYTTAQLL AANEQKFKFD PLFLRLFFRE SYPFTTEKVY LSQIPGLVNM ALYVSPIVSG EVIRSRGGST SEFTPGYVKP KHEVNPQMT LRRLPDEDPQ NLADPAYRRR RIIMQNMRDE ELAIAQVEEM QAVSAVLKGK YTMTGEAFDP VEVDMGRSEE N NITQSGGT EWSKRDKSTY DPTDDIEAYA LNASGVVNII VFDPKGWALF RSFKAVKEKL DTRRGSNSEL ETAVKDLGKA VS YKGMYGD VAIVVYSGQY VENGVKKNFL PDNTMVLGNT QARGLRTYGC IQDADAQREG INASARYPKN WVTTGDPARE FTM IQSAPL MLLADPDEFV SVQLA

UniProtKB: Major capsid protein

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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

BufferpH: 7
VitrificationCryogen name: NITROGEN

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELDBright-field microscopy / Nominal defocus max: 2.0 µm / Nominal defocus min: 1.0 µm
Image recordingFilm or detector model: GATAN K2 SUMMIT (4k x 4k) / Average electron dose: 50.0 e/Å2
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Startup modelType of model: NONE
Initial angle assignmentType: MAXIMUM LIKELIHOOD
Final angle assignmentType: MAXIMUM LIKELIHOOD
Final reconstructionResolution.type: BY AUTHOR / Resolution: 5.58 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 50921
FSC plot (resolution estimation)

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