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- PDB-29tk: RNA polymerase II elongation complex with the +1 nucleosome -

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Basic information

Entry
Database: PDB / ID: 29tk
TitleRNA polymerase II elongation complex with the +1 nucleosome
Components
  • (DNA-directed RNA polymerase ...) x 7
  • (DNA-directed RNA polymerases I, II, and III subunit ...) x 3
  • (General transcription factor IIF subunit ...) x 2
  • (RNA polymerase II subunit ...) x 2
  • DNA (188-MER)
  • DNA (199-MER)
  • General transcription factor IIE subunit 1
  • Histone H2A type 1
  • Histone H2B 1.1
  • Histone H3.2
  • Histone H4
  • RNA (5'-R(P*AP*CP*AP*CP*CP*CP*AP*GP*CP*C)-3')
KeywordsTRANSCRIPTION / RNA polymerase II
Function / homology
Function and homology information


transcription factor TFIIE complex / phosphatase activator activity / TFIIF-class transcription factor complex binding / transcription factor TFIIF complex / B-WICH complex positively regulates rRNA expression / RNA Polymerase I Transcription Initiation / RNA Polymerase I Promoter Escape / RNA Polymerase I Transcription Termination / RNA Polymerase III Transcription Initiation From Type 1 Promoter / RNA Polymerase III Transcription Initiation From Type 2 Promoter ...transcription factor TFIIE complex / phosphatase activator activity / TFIIF-class transcription factor complex binding / transcription factor TFIIF complex / B-WICH complex positively regulates rRNA expression / RNA Polymerase I Transcription Initiation / RNA Polymerase I Promoter Escape / RNA Polymerase I Transcription Termination / RNA Polymerase III Transcription Initiation From Type 1 Promoter / RNA Polymerase III Transcription Initiation From Type 2 Promoter / RNA Polymerase III Transcription Initiation From Type 3 Promoter / mRNA Polyadenylation / Formation of RNA Pol II elongation complex / Formation of the Early Elongation Complex / Transcriptional regulation by small RNAs / RNA Polymerase II Pre-transcription Events / TP53 Regulates Transcription of DNA Repair Genes / FGFR2 alternative splicing / RNA polymerase II transcribes snRNA genes / mRNA Capping / mRNA Splicing - Minor Pathway / Processing of Capped Intron-Containing Pre-mRNA / RNA Polymerase II Promoter Escape / RNA Polymerase II Transcription Pre-Initiation And Promoter Opening / RNA Polymerase II Transcription Initiation / RNA Polymerase II Transcription Elongation / RNA Polymerase II Transcription Initiation And Promoter Clearance / RNA Pol II CTD phosphorylation and interaction with CE / Estrogen-dependent gene expression / Formation of TC-NER Pre-Incision Complex / Dual incision in TC-NER / Gap-filling DNA repair synthesis and ligation in TC-NER / mRNA Splicing - Major Pathway / RNA polymerase II general transcription initiation factor binding / Abortive elongation of HIV-1 transcript in the absence of Tat / FGFR2 alternative splicing / Viral Messenger RNA Synthesis / Signaling by FGFR2 IIIa TM / transcription factor TFIID complex / RNA polymerase II general transcription initiation factor activity / RNA Pol II CTD phosphorylation and interaction with CE during HIV infection / RNA Pol II CTD phosphorylation and interaction with CE / Formation of the Early Elongation Complex / Formation of the HIV-1 Early Elongation Complex / mRNA Capping / HIV Transcription Initiation / RNA Polymerase II HIV Promoter Escape / Transcription of the HIV genome / RNA Polymerase II Promoter Escape / RNA Polymerase II Transcription Pre-Initiation And Promoter Opening / RNA Polymerase II Transcription Initiation / RNA Polymerase II Transcription Initiation And Promoter Clearance / mRNA Splicing - Minor Pathway / Processing of Capped Intron-Containing Pre-mRNA / RNA polymerase II transcribes snRNA genes / Pausing and recovery of Tat-mediated HIV elongation / Tat-mediated HIV elongation arrest and recovery / HIV elongation arrest and recovery / Pausing and recovery of HIV elongation / maintenance of transcriptional fidelity during transcription elongation by RNA polymerase II / negative regulation of protein binding / Tat-mediated elongation of the HIV-1 transcript / Formation of HIV-1 elongation complex containing HIV-1 Tat / termination of RNA polymerase III transcription / transcription initiation at RNA polymerase III promoter / Formation of HIV elongation complex in the absence of HIV Tat / RNA polymerase I complex / RNA polymerase III complex / RNA Polymerase II Transcription Elongation / Formation of RNA Pol II elongation complex / RNA polymerase II, core complex / tRNA transcription by RNA polymerase III / transcription elongation by RNA polymerase I / RNA Polymerase II Pre-transcription Events / mRNA Splicing - Major Pathway / transcription-coupled nucleotide-excision repair / translation initiation factor binding / DNA-directed RNA polymerase complex / TP53 Regulates Transcription of DNA Repair Genes / positive regulation of transcription elongation by RNA polymerase II / transcription initiation at RNA polymerase II promoter / promoter-specific chromatin binding / DNA-templated transcription initiation / transcription elongation by RNA polymerase II / response to virus / fibrillar center / ribonucleoside binding / cell junction / DNA-directed RNA polymerase / structural constituent of chromatin / DNA-directed RNA polymerase activity / microtubule cytoskeleton / nucleosome / nucleosome assembly / transcription by RNA polymerase II / chromosome / heterochromatin formation / protein phosphatase binding / Estrogen-dependent gene expression / nucleic acid binding
Similarity search - Function
Transcription factor TFIIE alpha subunit, C-terminal / C-terminal general transcription factor TFIIE alpha / Transcription initiation factor IIE subunit alpha, N-terminal / Transcription factor TFE/TFIIEalpha HTH domain / TFIIEalpha/SarR/Rpc3 HTH domain / Transcription factor E / TFIIE alpha subunit / TFE/IIEalpha-type HTH domain profile. / Transcription initiation factor IIE / Transcription initiation factor IIF, beta subunit ...Transcription factor TFIIE alpha subunit, C-terminal / C-terminal general transcription factor TFIIE alpha / Transcription initiation factor IIE subunit alpha, N-terminal / Transcription factor TFE/TFIIEalpha HTH domain / TFIIEalpha/SarR/Rpc3 HTH domain / Transcription factor E / TFIIE alpha subunit / TFE/IIEalpha-type HTH domain profile. / Transcription initiation factor IIE / Transcription initiation factor IIF, beta subunit / TFIIF beta subunit, HTH domain / TFIIF, beta subunit, N-terminal / TFIIF, beta subunit HTH domain / TFIIF, beta subunit N-terminus / Transcription initiation factor IIF, alpha subunit / Transcription initiation factor IIF, alpha subunit (TFIIF-alpha) / Transcription Factor IIF, Rap30/Rap74, interaction / Zinc finger, TFIIB-type / TFIIB zinc-binding / DNA-directed RNA polymerase II subunit Rpb4-like / RNA polymerase Rpb4/RPC9, core / RNA polymerase Rpb1 C-terminal repeat / DNA-directed RNA-polymerase II subunit / RNA polymerase II, heptapeptide repeat, eukaryotic / Eukaryotic RNA polymerase II heptapeptide repeat. / RNA polymerase Rpb1, domain 6 / RNA polymerase Rpb1, domain 6 / RNA polymerase Rpb1, domain 7 / RNA polymerase Rpb1, domain 7 superfamily / RNA polymerase Rpb1, domain 7 / Rpb4/RPC9 superfamily / Pol II subunit B9, C-terminal zinc ribbon / RNA polymerase RBP11 / RNA polymerase subunit Rpb4/RPC9 / RNA polymerase Rpb4 / Zinc finger TFIIS-type signature. / RNA polymerase Rpb7-like , N-terminal / RNA polymerase Rpb7-like, N-terminal domain superfamily / RNA polymerase subunit Rpb7-like / SHS2 domain found in N terminus of Rpb7p/Rpc25p/MJ0397 / RNA polymerase Rpb2, domain 5 / RNA polymerase Rpb2, domain 5 / HRDC-like superfamily / RNA polymerase Rpb2, domain 4 / RNA polymerase Rpb2, domain 4 / DNA-directed RNA polymerase, M/15kDa subunit / RNA polymerases M/15 Kd subunit / RNA polymerase subunit 9 / DNA-directed RNA polymerase M, 15kDa subunit, conserved site / RNA polymerases M / 15 Kd subunits signature. / DNA-directed RNA polymerase subunit/transcription factor S / : / RNA polymerase, Rpb8 / DNA-directed RNA polymerases I, II, and III subunit RPABC4 / RNA polymerase Rpb8 / RNA polymerase subunit 8 / RNA polymerase, Rpb5, N-terminal / RNA polymerase Rpb5, N-terminal domain superfamily / RNA polymerase Rpb5, N-terminal domain / DNA-directed RNA polymerase, subunit RPB6 / DNA-directed RNA polymerase subunit RPABC5/Rpb10 / RNA polymerases, subunit N, zinc binding site / RNA polymerase subunit RPB10 / RNA polymerases N / 8 kDa subunit / RNA polymerases N / 8 Kd subunits signature. / RNA polymerase, subunit H/Rpb5, conserved site / RNA polymerases H / 23 Kd subunits signature. / DNA directed RNA polymerase, 7 kDa subunit / RNA polymerase archaeal subunit P/eukaryotic subunit RPABC4 / RNA polymerase subunit CX / DNA-directed RNA polymerase, 30-40kDa subunit, conserved site / DNA-directed RNA polymerase subunit Rpo3/Rpb3/RPAC1 / RNA polymerases D / 30 to 40 Kd subunits signature. / DNA-directed RNA polymerase Rpb11, 13-16kDa subunit, conserved site / DNA-directed RNA polymerase subunit Rpo11 / RNA polymerases L / 13 to 16 Kd subunits signature. / RNA polymerase subunit RPABC4/transcription elongation factor Spt4 / Zinc finger, TFIIS-type / Transcription factor S-II (TFIIS) / Zinc finger TFIIS-type profile. / C2C2 Zinc finger / DNA-directed RNA polymerase, RBP11-like dimerisation domain / RNA polymerase Rpb3/Rpb11 dimerisation domain / RNA polymerase, subunit H/Rpb5 C-terminal / DNA-directed RNA polymerase subunit Rpo5/Rpb5 / RPB5-like RNA polymerase subunit superfamily / RNA polymerase Rpb5, C-terminal domain / Archaeal Rpo6/eukaryotic RPB6 RNA polymerase subunit / DNA-directed RNA polymerase, 14-18kDa subunit, conserved site / RNA polymerases K / 14 to 18 Kd subunits signature. / Ribosomal protein S1-like RNA-binding domain / S1 RNA binding domain / S1 domain / : / Histone H2A conserved site / Histone H2A signature. / Histone H2B signature. / Histone H2B / Histone H2B / Histone H2A, C-terminal domain
Similarity search - Domain/homology
DNA / DNA (> 10) / DNA (> 100) / RNA / DNA-directed RNA polymerase II subunit RPB4 / DNA-directed RNA polymerase subunit / DNA-directed RNA polymerases I, II, and III subunit RPABC5 / DNA-directed RNA polymerase subunit / DNA-directed RNA polymerases I, II, and III subunit RPABC4 / DNA-directed RNA polymerases I, II, and III subunit RPABC2 ...DNA / DNA (> 10) / DNA (> 100) / RNA / DNA-directed RNA polymerase II subunit RPB4 / DNA-directed RNA polymerase subunit / DNA-directed RNA polymerases I, II, and III subunit RPABC5 / DNA-directed RNA polymerase subunit / DNA-directed RNA polymerases I, II, and III subunit RPABC4 / DNA-directed RNA polymerases I, II, and III subunit RPABC2 / DNA-directed RNA polymerase II subunit RPB11-a / DNA-directed RNA polymerases I, II, and III subunit RPABC3 / DNA-directed RNA polymerase II subunit RPB3 / DNA-directed RNA polymerase subunit beta / DNA-directed RNA polymerases I, II, and III subunit RPABC1 / Histone H2B 1.1 / Histone H2A type 1 / General transcription factor IIF subunit 2 / General transcription factor IIE subunit 1 / General transcription factor IIF subunit 1 / DNA-directed RNA polymerase II subunit RPB9 / Histone H4 / Histone H3.2
Similarity search - Component
Biological speciesHomo sapiens (human)
Xenopus laevis (African clawed frog)
Sus scrofa (pig)
unidentified adenovirus
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.9 Å
AuthorsZhan, Y. / Abril-Garrido, J. / Dienemann, C. / Cramer, P.
Funding support Germany, 1items
OrganizationGrant numberCountry
Max Planck Society Germany
CitationJournal: To Be Published / Year: 2026
Title: RNA polymerase II elongation complex with the +1 nucleosome
Authors: Zhan, Y. / Abril-Garrido, J.
History
DepositionApr 7, 2026Deposition site: PDBE / Processing site: PDBE
Revision 1.0Jul 22, 2026Provider: repository / Type: Initial release
Revision 1.0Jul 22, 2026Data content type: EM metadata / Data content type: EM metadata / Provider: repository / Type: Initial release
Revision 1.0Jul 22, 2026Data content type: Image / Data content type: Image / Provider: repository / Type: Initial release
Revision 1.0Jul 22, 2026Data content type: Primary map / Data content type: Primary map / Provider: repository / Type: Initial release

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
C: DNA-directed RNA polymerase II subunit RPB3
D: RNA polymerase II subunit D
E: DNA-directed RNA polymerase II subunit E
F: DNA-directed RNA polymerases I, II, and III subunit RPABC2
G: DNA-directed RNA polymerase subunit
H: DNA-directed RNA polymerases I, II, and III subunit RPABC3
I: DNA-directed RNA polymerase II subunit RPB9
J: DNA-directed RNA polymerases I, II, and III subunit RPABC5
K: DNA-directed RNA polymerase II subunit RPB11-a
L: RNA polymerase II subunit K
P: RNA (5'-R(P*AP*CP*AP*CP*CP*CP*AP*GP*CP*C)-3')
Q: General transcription factor IIF subunit 1
R: General transcription factor IIF subunit 2
T: DNA (199-MER)
W: General transcription factor IIE subunit 1
a: Histone H3.2
b: Histone H4
c: Histone H2A type 1
d: Histone H2B 1.1
e: Histone H3.2
f: Histone H4
g: Histone H2A type 1
h: Histone H2B 1.1
A: DNA-directed RNA polymerase subunit
B: DNA-directed RNA polymerase subunit beta
N: DNA (188-MER)
hetero molecules


Theoretical massNumber of molelcules
Total (without water)941,23636
Polymers940,62326
Non-polymers61310
Water00
1


  • Idetical with deposited unit
  • defined by author&software
  • Evidence: electron microscopy, not applicable
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1

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Components

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DNA-directed RNA polymerase ... , 7 types, 7 molecules CEGIKAB

#1: Protein DNA-directed RNA polymerase II subunit RPB3


Mass: 31439.074 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Sus scrofa (pig) / References: UniProt: I3LCH3
#3: Protein DNA-directed RNA polymerase II subunit E / RPB5 homolog


Mass: 24644.318 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Sus scrofa (pig) / References: UniProt: I3LSI7
#5: Protein DNA-directed RNA polymerase subunit


Mass: 19227.205 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Sus scrofa (pig) / References: UniProt: A0A4X1VKG7
#7: Protein DNA-directed RNA polymerase II subunit RPB9 / RNA polymerase II subunit B9 / DNA-directed RNA polymerase II subunit I / RNA polymerase II 14.5 ...RNA polymerase II subunit B9 / DNA-directed RNA polymerase II subunit I / RNA polymerase II 14.5 kDa subunit / RPB14.5


Mass: 14541.221 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Sus scrofa (pig) / References: UniProt: P60899
#9: Protein DNA-directed RNA polymerase II subunit RPB11-a


Mass: 13310.284 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Sus scrofa (pig) / References: UniProt: F1RKE4
#20: Protein DNA-directed RNA polymerase subunit


Mass: 217450.078 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Sus scrofa (pig)
References: UniProt: A0A7M4DUC2, DNA-directed RNA polymerase
#21: Protein DNA-directed RNA polymerase subunit beta


Mass: 147938.594 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Sus scrofa (pig) / References: UniProt: I3LGP4, DNA-directed RNA polymerase

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RNA polymerase II subunit ... , 2 types, 2 molecules DL

#2: Protein RNA polymerase II subunit D


Mass: 20962.621 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Sus scrofa (pig) / References: UniProt: A0A287ADR4
#10: Protein RNA polymerase II subunit K


Mass: 7018.244 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Sus scrofa (pig) / References: UniProt: A0A8D0JYF1

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DNA-directed RNA polymerases I, II, and III subunit ... , 3 types, 3 molecules FHJ

#4: Protein DNA-directed RNA polymerases I, II, and III subunit RPABC2


Mass: 14477.001 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Sus scrofa (pig) / References: UniProt: A0A8D1KNW4
#6: Protein DNA-directed RNA polymerases I, II, and III subunit RPABC3


Mass: 17162.273 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Sus scrofa (pig) / References: UniProt: I3LCB2
#8: Protein DNA-directed RNA polymerases I, II, and III subunit RPABC5


Mass: 7655.123 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Sus scrofa (pig) / References: UniProt: A0A4X1VYD0

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RNA chain , 1 types, 1 molecules P

#11: RNA chain RNA (5'-R(P*AP*CP*AP*CP*CP*CP*AP*GP*CP*C)-3')


Mass: 3118.957 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) unidentified adenovirus

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General transcription factor IIF subunit ... , 2 types, 2 molecules QR

#12: Protein General transcription factor IIF subunit 1 / General transcription factor IIF 74 kDa subunit / Transcription initiation factor IIF subunit alpha ...General transcription factor IIF 74 kDa subunit / Transcription initiation factor IIF subunit alpha / TFIIF-alpha / Transcription initiation factor RAP74


Mass: 58343.578 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: GTF2F1, RAP74 / Production host: Escherichia coli (E. coli) / References: UniProt: P35269
#13: Protein General transcription factor IIF subunit 2 / ATP-dependent helicase GTF2F2 / General transcription factor IIF 30 kDa subunit / Transcription ...ATP-dependent helicase GTF2F2 / General transcription factor IIF 30 kDa subunit / Transcription initiation factor IIF subunit beta / TFIIF-beta / Transcription initiation factor RAP30


Mass: 28427.309 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: GTF2F2, RAP30 / Production host: Escherichia coli (E. coli) / References: UniProt: P13984, DNA helicase

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DNA chain , 2 types, 2 molecules TN

#14: DNA chain DNA (199-MER)


Mass: 77941.500 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) unidentified adenovirus
#22: DNA chain DNA (188-MER)


Mass: 77701.336 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) unidentified adenovirus

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Protein , 5 types, 9 molecules Waebfcgdh

#15: Protein General transcription factor IIE subunit 1 / General transcription factor IIE 56 kDa subunit / Transcription initiation factor IIE subunit alpha ...General transcription factor IIE 56 kDa subunit / Transcription initiation factor IIE subunit alpha / TFIIE-alpha


Mass: 49516.094 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: GTF2E1, TF2E1 / Production host: Escherichia coli (E. coli) / References: UniProt: P29083
#16: Protein Histone H3.2


Mass: 15421.101 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Xenopus laevis (African clawed frog) / Production host: Escherichia coli (E. coli) / References: UniProt: P84233
#17: Protein Histone H4


Mass: 11394.426 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Xenopus laevis (African clawed frog) / Production host: Escherichia coli (E. coli) / References: UniProt: P62799
#18: Protein Histone H2A type 1


Mass: 14093.436 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Xenopus laevis (African clawed frog) / Production host: Escherichia coli (E. coli) / References: UniProt: P06897
#19: Protein Histone H2B 1.1 / H2B1.1


Mass: 13965.265 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Xenopus laevis (African clawed frog) / Production host: Escherichia coli (E. coli) / References: UniProt: P02281

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Non-polymers , 2 types, 10 molecules

#23: Chemical
ChemComp-ZN / ZINC ION


Mass: 65.409 Da / Num. of mol.: 9 / Source method: obtained synthetically / Formula: Zn / Feature type: SUBJECT OF INVESTIGATION
#24: Chemical ChemComp-MG / MAGNESIUM ION


Mass: 24.305 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Mg / Feature type: SUBJECT OF INVESTIGATION

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Details

Has ligand of interestY
Has protein modificationN

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Experimental details

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Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction

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Sample preparation

ComponentName: RNA polymerase II elongation complex with the +1 nucleosome
Type: COMPLEX / Entity ID: #1-#22 / Source: RECOMBINANT
Source (natural)Organism: Homo sapiens (human)
Source (recombinant)Organism: Escherichia coli (E. coli)
Buffer solutionpH: 7.5
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationCryogen name: ETHANE

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Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: TFS KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Nominal defocus max: 1700 nm / Nominal defocus min: 700 nm
Image recordingElectron dose: 40 e/Å2 / Film or detector model: GATAN K3 (6k x 4k)

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Processing

EM software
IDNameVersionCategory
1Warpparticle selection
2PHENIX1.20.1_4487model refinement
13RELION53D reconstruction
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 3.9 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 62231 / Symmetry type: POINT
RefinementHighest resolution: 3.9 Å
Stereochemistry target values: REAL-SPACE (WEIGHTED MAP SUM AT ATOM CENTERS)
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.00550729
ELECTRON MICROSCOPYf_angle_d0.82370103
ELECTRON MICROSCOPYf_dihedral_angle_d24.1749585
ELECTRON MICROSCOPYf_chiral_restr0.0477767
ELECTRON MICROSCOPYf_plane_restr0.0067667

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