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- EMDB-34684: Monkeypox virus DNA replication holoenzyme F8, A22 and E4 complex... -

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Basic information

Entry
Database: EMDB / ID: EMD-34684
TitleMonkeypox virus DNA replication holoenzyme F8, A22 and E4 complex in an apo form
Map data
Sample
  • Complex: Monkeypox virus replication holoenzyme F8-A22-E4 complex
    • Protein or peptide: F8 DNA polymerase
    • Protein or peptide: E4 uracil-DNA glycosylase
    • Protein or peptide: A22 DNA replication processivity factor
KeywordsDNA replication machinery / F8 / A22 / E4 / DNA polymerase / B-family DNA polymerase / uracil-DNA glycosylase / MPXV / orthopoxvirus / poxviridae / DNA processivity factor / VIRAL PROTEIN
Function / homology
Function and homology information


uracil DNA N-glycosylase activity / viral DNA genome replication / DNA recombination / DNA-directed DNA polymerase / DNA-directed DNA polymerase activity / DNA replication / DNA repair / nucleotide binding / DNA binding
Similarity search - Function
DNA-directed DNA polymerase, family B, viral insert domain / DNA polymerase B exonuclease, N-terminal / DNA polymerase family B viral insert / DNA polymerase family B exonuclease domain, N-terminal / Chordopoxvirus A20R / Chordopoxvirus A20R protein / Uracil-DNA glycosylase, active site / Uracil-DNA glycosylase signature. / Uracil-DNA glycosylase-like domain superfamily / : ...DNA-directed DNA polymerase, family B, viral insert domain / DNA polymerase B exonuclease, N-terminal / DNA polymerase family B viral insert / DNA polymerase family B exonuclease domain, N-terminal / Chordopoxvirus A20R / Chordopoxvirus A20R protein / Uracil-DNA glycosylase, active site / Uracil-DNA glycosylase signature. / Uracil-DNA glycosylase-like domain superfamily / : / DNA-directed DNA polymerase, family B, multifunctional domain / DNA-directed DNA polymerase, family B, conserved site / DNA polymerase family B signature. / DNA polymerase family B / DNA polymerase family B, exonuclease domain / DNA-directed DNA polymerase, family B, exonuclease domain / DNA polymerase, palm domain superfamily / DNA polymerase type-B family / DNA-directed DNA polymerase, family B / Ribonuclease H superfamily / Ribonuclease H-like superfamily / DNA/RNA polymerase superfamily
Similarity search - Domain/homology
DNA polymerase processivity factor / Uracil-DNA glycosylase / DNA polymerase
Similarity search - Component
Biological speciesMonkeypox virus
Methodsingle particle reconstruction / cryo EM / Resolution: 3.05 Å
AuthorsXu Y / Wu Y / Zhang Y / Fan R / Yang Y / Li D / Yang B / Zhang Z / Dong C / Zhang X ...Xu Y / Wu Y / Zhang Y / Fan R / Yang Y / Li D / Yang B / Zhang Z / Dong C / Zhang X / Tang X / Dong H
Funding support China, 1 items
OrganizationGrant numberCountry
National Natural Science Foundation of China (NSFC)32250710142 China
CitationJournal: Cell Res / Year: 2023
Title: Cryo-EM structures of human monkeypox viral replication complexes with and without DNA duplex.
Authors: Yunxia Xu / Yaqi Wu / Yuanyuan Zhang / Ruixin Fan / Yaxue Yang / Danyang Li / Shimin Zhu / Biao Yang / Zhengyu Zhang / Changjiang Dong /
History
DepositionNov 7, 2022-
Header (metadata) releaseNov 15, 2023-
Map releaseNov 15, 2023-
UpdateJul 2, 2025-
Current statusJul 2, 2025Processing site: PDBj / Status: Released

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Structure visualization

Supplemental images

emd_34684.png

Downloads & links

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Map

FileDownload / File: emd_34684.map.gz / Format: CCP4 / Size: 125 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
0.84 Å/pix.
x 320 pix.
= 268.8 Å		0.84 Å/pix.
x 320 pix.
= 268.8 Å		0.84 Å/pix.
x 320 pix.
= 268.8 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 0.84 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.05
Minimum - Maximum-1.2670243 - 1.4164885
Average (Standard dev.)0.000086103144 (±0.020034196)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions320320320
Spacing320320320
CellA=B=C: 268.8 Å
α=β=γ: 90.0 °

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Supplemental data

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Additional map: Use a mask on A22 and performed a local refinement

Fileemd_34684_additional_1.map
AnnotationUse a mask on A22 and performed a local refinement
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: #2

Fileemd_34684_half_map_1.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: #1

Fileemd_34684_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 : Monkeypox virus replication holoenzyme F8-A22-E4 complex

EntireName: Monkeypox virus replication holoenzyme F8-A22-E4 complex
Components
  • Complex: Monkeypox virus replication holoenzyme F8-A22-E4 complex
    • Protein or peptide: F8 DNA polymerase
    • Protein or peptide: E4 uracil-DNA glycosylase
    • Protein or peptide: A22 DNA replication processivity factor

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Supramolecule #1: Monkeypox virus replication holoenzyme F8-A22-E4 complex

SupramoleculeName: Monkeypox virus replication holoenzyme F8-A22-E4 complex
type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1, #3, #2 / Details: F8-A22-E4 complex
Source (natural)Organism: Monkeypox virus
Molecular weightTheoretical: 191 kDa/nm

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Macromolecule #1: F8 DNA polymerase

MacromoleculeName: F8 DNA polymerase / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO / EC number: DNA-directed DNA polymerase
Source (natural)Organism: Monkeypox virus
Molecular weightTheoretical: 120.041156 KDa
Recombinant expressionOrganism: Baculovirus expression vector pFastBac1-HM
SequenceString: MHHHHHHHHD YDIPTTENLY FQGMDVRCIN WFESHGENRF LYLKSRCRNG ETVFIRFPHY FYYVVTDEIY QSLSPPPFNA RPMGKMRTI DIDETISYNL DIKDRKCSVA DMWLIEEPKK RSIQNATMDE FFNISWFYIS NGISPDGCYS LDEQYLTKIN N GCYHCDDP ...String:
MHHHHHHHHD YDIPTTENLY FQGMDVRCIN WFESHGENRF LYLKSRCRNG ETVFIRFPHY FYYVVTDEIY QSLSPPPFNA RPMGKMRTI DIDETISYNL DIKDRKCSVA DMWLIEEPKK RSIQNATMDE FFNISWFYIS NGISPDGCYS LDEQYLTKIN N GCYHCDDP RNCFAKEIPR FDIPRSYLFL DIECHFDKKF PSVFINPISH TSYCYIDLSG KRLLFTLINE EMLTEQEIQE AV DRGCLRI QSLMEMDYER ELVLCSEIVL LRIAKQLLEL TFDYVVTFNG HNFDLRYITN RLELLTGEKI IFRSPDKKEA VHL CIYERN QSSHKGVCGM ANTTFHVNNN NGTIFFDLYS FIQKSEKLDS YKLDSISKNA FSCMGKVLNR GVREMTFIGD DTTD AKGKA DTFAKVLTTG NYVTVDEDII CKVIRKDILE NGFKVVLSCP TLPNDIYKLS FGKDDIDLAQ MYKDYNLNIA LDMAR YCIH DACLCQYLWE YYGVETKTDA GAATYVLPQS MVFEYRASTI IKGPLLKLLL ETKTILVRSE TKQKFPYEGG KVFAPK QKM FSNNVLIFDY NSLYPNVCIF GNLSPETLVG VVVSTNRLEE EINNQLLLQK YPPPRYITVH CEPRLPNLIS EIAIFDR SI EGTIPRLLRT FLAERARYKK MLKQATSSTE KAIYDSMQYT YKIVANSVYG LMGFRNSALY SYASAKSCTS IGRRMILY L ESVLNGAELS NGMLRFANTL SNPFYMDDRD INPIVKTSLP IDYRFRFRSV YGDTDSVFTE IDSQDVDKSI EIAKELERL INSRVLFNNF KIEFEAVYKN LIMQSKKKYT TMKYSASSNS KSVPERINKG TSETRRDVSK FHKNMIKTYK TRLSEMLSEG RMNSNQVCI DILRSLETDL RSEFDSRSSP LELFMLSRMH HSNYKSADNP NMYLVTEYNK NNPETIELGE RYYFAYICPA N VPWTKKLV NIKTYETIID RSFKLGSNQR IFYEVYFKRL TSEIVNLLDN KVLCISFFQR MFGSRPTFYE A

UniProtKB: DNA polymerase

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Macromolecule #2: A22 DNA replication processivity factor

MacromoleculeName: A22 DNA replication processivity factor / type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Monkeypox virus
Molecular weightTheoretical: 49.203926 KDa
Recombinant expressionOrganism: Baculovirus expression vector pFastBac1-HM
SequenceString: MTSSADLTNL KELLSLYKSL RFSDSVAIEK YNSLVEWGTS TYWKIGVQKV TNVETSISDY YDEVKNKPFN IDPGYYIFLP VYFGSVFIY SKGKNMVELG SGNSFQIPDE IRSACNKVLD SDNGIDFLRF VLLNNRWIME DAISKYQSPV NIFKLASEYG L NIPNYLEI ...String:
MTSSADLTNL KELLSLYKSL RFSDSVAIEK YNSLVEWGTS TYWKIGVQKV TNVETSISDY YDEVKNKPFN IDPGYYIFLP VYFGSVFIY SKGKNMVELG SGNSFQIPDE IRSACNKVLD SDNGIDFLRF VLLNNRWIME DAISKYQSPV NIFKLASEYG L NIPNYLEI EIEEDTLFDD ELYSIMERSF DDTFPKISIS YIKLGELKRQ VVDFFKFSFM YIESIKVDRI GDNIFIPSVI TK SGKKILV KDVDHLIRSK VREHTFVKVK KKNTFSILYD YDGNGTETRG EVIKRIIDTI GRDYYVNGKY FSKVGIAGLK QLT NKLDIN ECATVDELVD EINKSGTVKR KIKNQSVFDL SRECLGYPEA DFITLVNNMR FKIENCKVVN FNIENTNCLN NPSI ETIYG NFNQFVSIFN TVTDVKKRLF E

UniProtKB: DNA polymerase processivity factor

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Macromolecule #3: E4 uracil-DNA glycosylase

MacromoleculeName: E4 uracil-DNA glycosylase / type: protein_or_peptide / ID: 3 / Number of copies: 1 / Enantiomer: LEVO / EC number: uracil-DNA glycosylase
Source (natural)Organism: Monkeypox virus
Molecular weightTheoretical: 27.883709 KDa
Recombinant expressionOrganism: Baculovirus expression vector pFastBac1-HM
SequenceString: MHHHHHHDYD IPTTENLYFQ GASMNSVTIS HAPYTITYHD DWEPVMSQLV EFYNEVASWL LRDETSPIPD KFFIQLKQPL RNKRVCVCG IDPYPKDGTG VPFESPNFTK KSIKEIASSI SRLTGVIDYK GYNLNIIDGV IPWNYYLSCK LGETKSHAIY W DKISKLLL ...String:
MHHHHHHDYD IPTTENLYFQ GASMNSVTIS HAPYTITYHD DWEPVMSQLV EFYNEVASWL LRDETSPIPD KFFIQLKQPL RNKRVCVCG IDPYPKDGTG VPFESPNFTK KSIKEIASSI SRLTGVIDYK GYNLNIIDGV IPWNYYLSCK LGETKSHAIY W DKISKLLL QHITKHVSVL YCLGKTDFSN IRAKLESPVT TIVGYHPAAR DHQFEKDRSF EIINVLLELD NKTPINWAQG FI Y

UniProtKB: Uracil-DNA glycosylase

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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: 8
Details: 25mM HEPES pH 8.0, 300mM NaCl, 5% (w/v) glycerol, and 1 mM TCEP
GridModel: Quantifoil R1.2/1.3 / Material: COPPER / Mesh: 300 / Pretreatment - Type: GLOW DISCHARGE / Pretreatment - Time: 5 sec.
VitrificationCryogen name: ETHANE
DetailsThis is a complex of F8-A22-E4

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Electron microscopy

MicroscopeTFS KRIOS
Image recordingFilm or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Average electron dose: 50.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 3.0 µm / Nominal defocus min: 1.0 µm
Sample stageSpecimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

DetailsThe selected movies are corrected with motion correct
Particle selectionDetails: 19,555,002
CTF correctionSoftware - Name: cryoSPARC / Type: NONE
Startup modelType of model: OTHER / Details: Alphfold2 prediction
Final reconstructionNumber classes used: 4 / Applied symmetry - Point group: C1 (asymmetric) / Resolution.type: BY AUTHOR / Resolution: 3.05 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: cryoSPARC / Number images used: 632071
Initial angle assignmentType: NOT APPLICABLE
Final angle assignmentType: NOT APPLICABLE
Final 3D classificationNumber classes: 6 / Software - Name: cryoSPARC

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