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- EMDB-39438: structure of phage T4 topoisomerase II gp52 subunit WHD-open state -

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Open data


ID or keywords:

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Basic information

Entry
Database: EMDB / ID: EMD-39438
Titlestructure of phage T4 topoisomerase II gp52 subunit WHD-open state
Map datagp52 subunit WHD open map
Sample
  • Complex: Phage T4 topoisomerase II gp52 subunit
    • Protein or peptide: DNA topoisomerase medium subunit
Keywordstopoisomerase II / ISOMERASE
Function / homology
Function and homology information


sister chromatid segregation / DNA topoisomerase type II (double strand cut, ATP-hydrolyzing) activity / DNA topoisomerase (ATP-hydrolysing) / DNA topological change / protein-containing complex / DNA binding / ATP binding
Similarity search - Function
DNA topoisomerase II, eukaryotic-type / : / Topoisomerase (Topo) IIA-type catalytic domain profile. / DNA topoisomerase, type IIA, alpha-helical domain superfamily / DNA topoisomerase, type IIA, domain A / DNA topoisomerase, type IIA, domain A, alpha-beta / DNA gyrase/topoisomerase IV, subunit A / DNA Topoisomerase IV / DNA topoisomerase, type IIA-like domain superfamily
Similarity search - Domain/homology
DNA topoisomerase medium subunit
Similarity search - Component
Biological speciesEnterobacteria phage T4 (virus) / Escherichia phage T4 (virus)
Methodsingle particle reconstruction / cryo EM / Resolution: 6.12 Å
AuthorsChen YT / Xin YH / Xian RQ
Funding support China, 1 items
OrganizationGrant numberCountry
Chinese Academy of Sciences China
CitationJournal: To be published
Title: structure of phage T4 topoisomerase II gp52 subunit WHD-open state
Authors: Chen YT / Xin YH / Xian RQ
History
DepositionMar 13, 2024-
Header (metadata) releaseSep 25, 2024-
Map releaseSep 25, 2024-
UpdateSep 25, 2024-
Current statusSep 25, 2024Processing site: PDBj / Status: Released

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Structure visualization

Supplemental images

emd_39438.png

Downloads & links

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Map

FileDownload / File: emd_39438.map.gz / Format: CCP4 / Size: 103 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Annotationgp52 subunit WHD open map
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
1.04 Å/pix.
x 300 pix.
= 312. Å		1.04 Å/pix.
x 300 pix.
= 312. Å		1.04 Å/pix.
x 300 pix.
= 312. Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 1.04 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.14
Minimum - Maximum-0.47809955 - 1.2253815
Average (Standard dev.)-0.00057249324 (±0.027295318)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions300300300
Spacing300300300
CellA=B=C: 312.0 Å
α=β=γ: 90.0 °

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Supplemental data

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Half map: gp52 subunit WHD open half map

Fileemd_39438_half_map_1.map
Annotationgp52 subunit WHD open half map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: gp52 subunit WHD open half map

Fileemd_39438_half_map_2.map
Annotationgp52 subunit WHD open half 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 : Phage T4 topoisomerase II gp52 subunit

EntireName: Phage T4 topoisomerase II gp52 subunit
Components
  • Complex: Phage T4 topoisomerase II gp52 subunit
    • Protein or peptide: DNA topoisomerase medium subunit

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Supramolecule #1: Phage T4 topoisomerase II gp52 subunit

SupramoleculeName: Phage T4 topoisomerase II gp52 subunit / type: complex / ID: 1 / Parent: 0 / Macromolecule list: all
Source (natural)Organism: Enterobacteria phage T4 (virus)

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Macromolecule #1: DNA topoisomerase medium subunit

MacromoleculeName: DNA topoisomerase medium subunit / type: protein_or_peptide / ID: 1 / Number of copies: 2 / Enantiomer: LEVO / EC number: DNA topoisomerase (ATP-hydrolysing)
Source (natural)Organism: Escherichia phage T4 (virus)
Molecular weightTheoretical: 51.951973 KDa
Recombinant expressionOrganism: Escherichia coli (E. coli)
SequenceString: MQLNNRDLKS IIDNEALAYA MYTVENRAIP NMIDGFKPVQ RFVIARALDL ARGNKDKFHK LASIAGGVAD LGYHHGENSA QDAGALMAN TWNNNFPLLD GQGNFGSRTV QKAAASRYIF ARVSKNFYNV YKDTEYAPVH QDKEHIPPAF YLPIIPTVLL N GVSGIATG ...String:
MQLNNRDLKS IIDNEALAYA MYTVENRAIP NMIDGFKPVQ RFVIARALDL ARGNKDKFHK LASIAGGVAD LGYHHGENSA QDAGALMAN TWNNNFPLLD GQGNFGSRTV QKAAASRYIF ARVSKNFYNV YKDTEYAPVH QDKEHIPPAF YLPIIPTVLL N GVSGIATG YATYILPHSV SSVKKAVLQA LQGKKVTKPK VEFPEFRGEV VEIDGQYEIR GTYKFTSRTQ MHITEIPYKY DR ETYVSKI LDPLENKGFI TWDDACGEHG FGFKVKFRKE YSLSDNEEER HAKIMKDFGL IERRSQNITV INEKGKLQVY DNV VDLIKD FVEVRKTYVQ KRIDNKIKET ESAFRLAFAK AHFIKKVISG EIVVQGKTRK ELTEELSKID MYSSYVDKLV GMNI FHMTS DEAKKLAEEA KAKKEENEYW KTTDVVTEYT KDLEEIKHHH HHHHHHH

UniProtKB: DNA topoisomerase medium subunit

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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: 6
VitrificationCryogen name: ETHANE

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Image recordingFilm or detector model: GATAN K2 QUANTUM (4k x 4k) / Detector mode: COUNTING / Average electron dose: 60.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.5 µm / Nominal defocus min: 1.5 µm
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Startup modelType of model: OTHER
Final reconstructionResolution.type: BY AUTHOR / Resolution: 6.12 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 39189
Initial angle assignmentType: MAXIMUM LIKELIHOOD
Final angle assignmentType: MAXIMUM LIKELIHOOD

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