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- PDB-9pcp: NER dual incision complex - NoG -

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Basic information

Entry
Database: PDB / ID: 9pcp
TitleNER dual incision complex - NoG
Components
  • (DNA repair protein complementing XP- ...) x 2
  • (General transcription factor IIH subunit ...) x 5
  • Centrin-2
  • DNA
  • DNA (Cy5)
  • DNA excision repair protein ERCC-1
  • DNA repair endonuclease XPF
  • General transcription and DNA repair factor IIH helicase subunit XPD
  • TFIIH basal transcription factor complex helicase XPB subunit
  • UV excision repair protein RAD23 homolog B
KeywordsDNA binding protein/DNA / NER / XPA / XPG / XPF / DNA binding protein / DNA binding protein-DNA complex
Function / homology
Function and homology information


heteroduplex DNA loop binding / positive regulation of t-circle formation / pyrimidine dimer repair by nucleotide-excision repair / telomeric DNA-containing double minutes formation / ERCC4-ERCC1 complex / negative regulation of protection from non-homologous end joining at telomere / nucleotide-excision repair factor 2 complex / nucleotide-excision repair factor 1 complex / nucleotide-excision repair involved in interstrand cross-link repair / XPC complex ...heteroduplex DNA loop binding / positive regulation of t-circle formation / pyrimidine dimer repair by nucleotide-excision repair / telomeric DNA-containing double minutes formation / ERCC4-ERCC1 complex / negative regulation of protection from non-homologous end joining at telomere / nucleotide-excision repair factor 2 complex / nucleotide-excision repair factor 1 complex / nucleotide-excision repair involved in interstrand cross-link repair / XPC complex / nucleotide-excision repair, DNA damage recognition / nucleotide-excision repair complex / MMXD complex / core TFIIH complex portion of holo TFIIH complex / photoreceptor connecting cilium / regulation of proteasomal ubiquitin-dependent protein catabolic process / negative regulation of telomere maintenance / DNA damage sensor activity / Cytosolic iron-sulfur cluster assembly / single-stranded DNA endonuclease activity / central nervous system myelin formation / heterotrimeric G-protein binding / transcription export complex 2 / positive regulation of mitotic recombination / resolution of meiotic recombination intermediates / hair cell differentiation / nucleotide-excision repair factor 3 complex / histone H4K20 demethylase activity / nucleotide-excision repair, preincision complex assembly / hair follicle maturation / response to auditory stimulus / t-circle formation / nuclear pore nuclear basket / CAK-ERCC2 complex / embryonic cleavage / mitotic recombination / bubble DNA binding / cellular response to interleukin-7 / UV protection / Oxidoreductases; Acting on paired donors, with incorporation or reduction of molecular oxygen; With 2-oxoglutarate as one donor, and incorporation of one atom of oxygen into each donor / regulation of cyclin-dependent protein serine/threonine kinase activity / response to UV-B / transcription factor TFIIH core complex / transcription factor TFIIH holo complex / G protein-coupled receptor internalization / mitotic intra-S DNA damage checkpoint signaling / DNA 5'-3' helicase / hematopoietic stem cell proliferation / nuclear thyroid hormone receptor binding / transcription preinitiation complex / RNA Polymerase I Transcription Termination / negative regulation of telomere maintenance via telomere lengthening / UV-damage excision repair / transcription factor TFIID complex / erythrocyte maturation / HDR through Single Strand Annealing (SSA) / RNA polymerase II general transcription initiation factor activity / regulation of mitotic cell cycle phase transition / bone mineralization / RNA Pol II CTD phosphorylation and interaction with CE during HIV infection / RNA Pol II CTD phosphorylation and interaction with CE / hematopoietic stem cell differentiation / Formation of the Early Elongation Complex / Formation of the HIV-1 Early Elongation Complex / spinal cord development / 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 / centriole replication / ATPase activator activity / proteasome binding / DNA topological change / TFIID-class transcription factor complex binding / intrinsic apoptotic signaling pathway by p53 class mediator / RNA Polymerase I Transcription Initiation / DNA 3'-5' helicase / embryonic organ development / post-embryonic development / 3'-5' DNA helicase activity / response to UV / protein localization to nucleus / polyubiquitin modification-dependent protein binding / Tat-mediated elongation of the HIV-1 transcript / Formation of HIV-1 elongation complex containing HIV-1 Tat / mismatch repair / SUMOylation of DNA damage response and repair proteins / Formation of HIV elongation complex in the absence of HIV Tat / mRNA export from nucleus / RNA Polymerase II Transcription Elongation / Formation of RNA Pol II elongation complex / hormone-mediated signaling pathway / extracellular matrix organization / determination of adult lifespan / site of DNA damage / transcription elongation by RNA polymerase I
Similarity search - Function
DNA repair protein XPF / : / ERCC1/RAD10/SWI10 family / : / Binding domain of DNA repair protein Ercc1 (rad10/Swi10) / XPA protein N-terminal / Rad4 beta-hairpin domain 2 / XPA / Zinc finger, XPA-type, conserved site / XPA, C-terminal ...DNA repair protein XPF / : / ERCC1/RAD10/SWI10 family / : / Binding domain of DNA repair protein Ercc1 (rad10/Swi10) / XPA protein N-terminal / Rad4 beta-hairpin domain 2 / XPA / Zinc finger, XPA-type, conserved site / XPA, C-terminal / XPA, conserved site / XPA protein C-terminus / XPA protein signature 1. / XPA protein signature 2. / XPA domain superfamily / RAD23A/RAD23B, UBA1 domain / DNA repair protein Rad4 / DNA repair protein Rad4, subgroup / Rad4/PNGase transglutaminase-like fold / Rad4 beta-hairpin domain 1 / Rad4 beta-hairpin domain 2 / Rad4 beta-hairpin domain 3 / Rad4, beta-hairpin domain 3 superfamily / Rad4 beta-hairpin domain 1 / Rad4 beta-hairpin domain 3 / Rad4 beta-hairpin domain 1 / Rad4 beta-hairpin domain 2 / Rad4 beta-hairpin domain 3 / Rad4 transglutaminase-like domain / UV excision repair protein Rad23 / XPC-binding domain / XPC-binding domain superfamily / XPC-binding domain / ERCC4 domain / ERCC4 domain / ERCC4 domain / : / Heat shock chaperonin-binding / Heat shock chaperonin-binding motif. / Transglutaminase-like superfamily / TFIIH subunit Tfb4/GTF2H3 / Transcription factor Tfb4 / TFIIH C1-like domain / Ssl1-like / TFIIH subunit Ssl1/p44 / Ssl1-like / TFIIH C1-like domain / TFIIH C1-like domain / TFIIH p62 subunit, N-terminal / TFIIH subunit Tfb1/GTF2H1 / TFIIH p62 subunit, N-terminal domain / BSD domain / BSD domain superfamily / BSD domain / BSD domain profile. / domain in transcription factors and synapse-associated proteins / RAD3/XPD family / Helicase XPB/Ssl2 / Helicase XPB/Ssl2, N-terminal domain / Helicase conserved C-terminal domain / ERCC3/RAD25/XPB C-terminal helicase / Transcription factor TFIIH subunit p52/Tfb2 / Transcription factor Tfb2, C-terminal domain / Transcription factor Tfb2 / Transcription factor Tfb2 (p52) C-terminal domain / TFIIH subunit TTDA/Tfb5 / Helical and beta-bridge domain / TFB5-like superfamily / Transcription factor TFIIH complex subunit Tfb5 / Helical and beta-bridge domain / Transcription factor TFIIH complex subunit Tfb5 / ATP-dependent helicase Rad3/Chl1-like / ERCC3/RAD25/XPB helicase, C-terminal domain / : / Helicase-like, DEXD box c2 type / DEAD2 / DEAD_2 / DEXDc2 / Helicase superfamily 1/2, DinG/Rad3-like / Helicase superfamily 1/2, ATP-binding domain, DinG/Rad3-type / Superfamilies 1 and 2 helicase ATP-binding type-2 domain profile. / HELICc2 / ATP-dependent helicase, C-terminal / Helicase C-terminal domain / UBA/TS-N domain / Putative DNA-binding domain superfamily / RuvA domain 2-like / Restriction endonuclease type II-like / Helicase/UvrB, N-terminal / Type III restriction enzyme, res subunit / Ubiquitin associated domain / : / ATP-dependent RNA helicase DEAD-box, conserved site / Ubiquitin-associated domain / Ubiquitin-associated domain (UBA) profile. / UBA-like superfamily / DNA/RNA helicase, ATP-dependent, DEAH-box type, conserved site / DEAH-box subfamily ATP-dependent helicases signature. / SAM-like Helix-hairpin-helix tandem / C1-like domain superfamily
Similarity search - Domain/homology
IRON/SULFUR CLUSTER / DNA / DNA (> 10) / DNA excision repair protein ERCC-1 / General transcription and DNA repair factor IIH helicase subunit XPD / General transcription and DNA repair factor IIH helicase/translocase subunit XPB / DNA repair protein complementing XP-A cells / General transcription factor IIH subunit 1 / Centrin-2 / Lysine-specific demethylase RAD23B ...IRON/SULFUR CLUSTER / DNA / DNA (> 10) / DNA excision repair protein ERCC-1 / General transcription and DNA repair factor IIH helicase subunit XPD / General transcription and DNA repair factor IIH helicase/translocase subunit XPB / DNA repair protein complementing XP-A cells / General transcription factor IIH subunit 1 / Centrin-2 / Lysine-specific demethylase RAD23B / DNA repair protein complementing XP-C cells / General transcription factor IIH subunit 2 / General transcription factor IIH subunit 3 / General transcription factor IIH subunit 5 / General transcription factor IIH subunit 4 / DNA repair endonuclease XPF
Similarity search - Component
Biological speciesHomo sapiens (human)
synthetic construct (others)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 4.3 Å
AuthorsKim, J. / Li, C.L. / Yang, W.
Funding support United States, 1items
OrganizationGrant numberCountry
National Institutes of Health/National Institute of Diabetes and Digestive and Kidney Disease (NIH/NIDDK)DK075037 United States
CitationJournal: Nature / Year: 2026
Title: Pre-incision structures reveal principles of DNA nucleotide excision repair.
Authors: Eric C L Li / Jinseok Kim / Sem J Brussee / Kaoru Sugasawa / Martijn S Luijsterburg / Wei Yang /
Abstract: Nucleotide excision repair (NER) removes bulky adducts from genomic DNA and prevents the ultraviolet light-sensitivity disease xeroderma pigmentosum, cancer and premature ageing. After initial lesion ...Nucleotide excision repair (NER) removes bulky adducts from genomic DNA and prevents the ultraviolet light-sensitivity disease xeroderma pigmentosum, cancer and premature ageing. After initial lesion recognition by XPC in global genome repair or by stalled RNA polymerases in transcription-coupled repair, a lesion and surrounding DNA duplex are unwound by TFIIH, which includes the ATPases XPB and XPD, and additional NER factors XPA, XPF, XPG and RPA, to form a DNA bubble comprising around 27 nucleotides. The double strand-single strand (ds-ss) junction-specific endonucleases XPF and XPG cleave DNA on the 5' and 3' sides of the lesion, respectively. Here we report the functional steps and atomic structures of the ATPase-driven and lesion-dependent DNA bubble formation and arrangement of the complete NER factors for dual incision. The unwinding of nearly 30 base pairs of DNA depends mainly on the double strand DNA translocase XPB and the duplex dividers XPA and XPF. XPD binds the lesion strand with XPF at the 5' ds-ss junction. XPF cuts the lesion strand only after XPG binds the 3' ds-ss junction. The ERCC1 subunit of XPF facilitates DNA strand separation and recruitment of RPA to the non-lesion strand. These findings provide insights on the causes of human diseases and potential targets for enhancing chemotherapeutic efficacy.
History
DepositionJun 28, 2025Deposition site: RCSB / Processing site: RCSB
Revision 1.0Apr 1, 2026Provider: repository / Type: Initial release
Revision 1.0Apr 1, 2026Data content type: EM metadata / Data content type: EM metadata / Provider: repository / Type: Initial release
Revision 1.0Apr 1, 2026Data content type: FSC / Data content type: FSC / Provider: repository / Type: Initial release
Revision 1.0Apr 1, 2026Data content type: Half map / Part number: 1 / Data content type: Half map / Provider: repository / Type: Initial release
Revision 1.0Apr 1, 2026Data content type: Half map / Part number: 2 / Data content type: Half map / Provider: repository / Type: Initial release
Revision 1.0Apr 1, 2026Data content type: Image / Data content type: Image / Provider: repository / Type: Initial release
Revision 1.0Apr 1, 2026Data content type: Primary map / Data content type: Primary map / Provider: repository / Type: Initial release
Revision 1.1May 6, 2026Group: Data collection / Database references / Category: citation / citation_author / em_admin
Item: _citation.journal_volume / _citation.page_first ..._citation.journal_volume / _citation.page_first / _citation.page_last / _citation_author.identifier_ORCID / _em_admin.last_update
Revision 1.1May 6, 2026Data content type: EM metadata / Data content type: EM metadata / EM metadata / Group: Database references / Experimental summary / Data content type: EM metadata / EM metadata / EM metadata / Category: citation / citation_author / em_admin
Data content type: EM metadata / EM metadata ...EM metadata / EM metadata / EM metadata / EM metadata / EM metadata
Item: _citation.journal_volume / _citation.page_first ..._citation.journal_volume / _citation.page_first / _citation.page_last / _citation_author.identifier_ORCID / _em_admin.last_update

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: TFIIH basal transcription factor complex helicase XPB subunit
B: General transcription and DNA repair factor IIH helicase subunit XPD
C: General transcription factor IIH subunit 1
D: General transcription factor IIH subunit 4, p52
E: General transcription factor IIH subunit 2
F: General transcription factor IIH subunit 3
G: General transcription factor IIH subunit 5
H: DNA repair protein complementing XP-C cells
I: UV excision repair protein RAD23 homolog B
J: Centrin-2
K: DNA repair protein complementing XP-A cells
L: DNA (Cy5)
M: DNA
Q: DNA repair endonuclease XPF
R: DNA excision repair protein ERCC-1
hetero molecules


Theoretical massNumber of molelcules
Total (without water)775,25524
Polymers774,43015
Non-polymers8249
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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Protein , 6 types, 6 molecules ABIJQR

#1: Protein TFIIH basal transcription factor complex helicase XPB subunit / Basic transcription factor 2 89 kDa subunit / BTF2 p89 / DNA excision repair protein ERCC-3 / DNA ...Basic transcription factor 2 89 kDa subunit / BTF2 p89 / DNA excision repair protein ERCC-3 / DNA repair protein complementing XP-B cells / TFIIH basal transcription factor complex 89 kDa subunit / TFIIH p89 / Xeroderma pigmentosum group B-complementing protein


Mass: 89404.734 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: ERCC3, XPB, XPBC / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: P19447, DNA helicase
#2: Protein General transcription and DNA repair factor IIH helicase subunit XPD / TFIIH subunit XPD / Basic transcription factor 2 80 kDa subunit / BTF2 p80 / CXPD / DNA excision ...TFIIH subunit XPD / Basic transcription factor 2 80 kDa subunit / BTF2 p80 / CXPD / DNA excision repair protein ERCC-2 / DNA repair protein complementing XP-D cells / TFIIH basal transcription factor complex 80 kDa subunit / TFIIH 80 kDa subunit / TFIIH p80 / Xeroderma pigmentosum group D-complementing protein


Mass: 88018.047 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: ERCC2, XPD, XPDC / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: P18074, DNA helicase
#9: Protein UV excision repair protein RAD23 homolog B / HR23B / hHR23B / XP-C repair-complementing complex 58 kDa protein / p58


Mass: 43203.914 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: RAD23B / Production host: Escherichia coli (E. coli) / References: UniProt: P54727
#10: Protein Centrin-2 / Caltractin isoform 1


Mass: 19769.486 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: CETN2, CALT, CEN2 / Production host: Escherichia coli (E. coli) / References: UniProt: P41208
#14: Protein DNA repair endonuclease XPF / DNA excision repair protein ERCC-4 / DNA repair protein complementing XP-F cells / Xeroderma ...DNA excision repair protein ERCC-4 / DNA repair protein complementing XP-F cells / Xeroderma pigmentosum group F-complementing protein


Mass: 104636.156 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: ERCC4, ERCC11, XPF / Production host: Homo sapiens (human)
References: UniProt: Q92889, Hydrolases; Acting on ester bonds
#15: Protein DNA excision repair protein ERCC-1


Mass: 32598.301 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: ERCC1 / Production host: Homo sapiens (human) / References: UniProt: P07992

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General transcription factor IIH subunit ... , 5 types, 5 molecules CDEFG

#3: Protein General transcription factor IIH subunit 1 / Basic transcription factor 2 62 kDa subunit / BTF2 p62 / General transcription factor IIH ...Basic transcription factor 2 62 kDa subunit / BTF2 p62 / General transcription factor IIH polypeptide 1 / TFIIH basal transcription factor complex p62 subunit


Mass: 62116.492 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: GTF2H1, BTF2 / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: P32780
#4: Protein General transcription factor IIH subunit 4, p52 / Basic transcription factor 2 52 kDa subunit / BTF2 p52 / General transcription factor IIH ...Basic transcription factor 2 52 kDa subunit / BTF2 p52 / General transcription factor IIH polypeptide 4 / TFIIH basal transcription factor complex p52 subunit


Mass: 52245.156 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: GTF2H4 / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: Q92759
#5: Protein General transcription factor IIH subunit 2 / Basic transcription factor 2 44 kDa subunit / BTF2 p44 / General transcription factor IIH ...Basic transcription factor 2 44 kDa subunit / BTF2 p44 / General transcription factor IIH polypeptide 2 / TFIIH basal transcription factor complex p44 subunit


Mass: 44481.996 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: GTF2H2, BTF2P44 / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: Q13888
#6: Protein General transcription factor IIH subunit 3 / p34 / Basic transcription factor 2 44 kDa subunit / BTF2 p44 / General transcription factor IIH ...p34 / Basic transcription factor 2 44 kDa subunit / BTF2 p44 / General transcription factor IIH polypeptide 2 / TFIIH basal transcription factor complex p44 subunit


Mass: 34416.008 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: GTF2H3 / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: Q13889
#7: Protein General transcription factor IIH subunit 5 / General transcription factor IIH polypeptide 5 / TFB5 ortholog / TFIIH basal transcription factor ...General transcription factor IIH polypeptide 5 / TFB5 ortholog / TFIIH basal transcription factor complex TTD-A subunit


Mass: 8060.362 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: GTF2H5, C6orf175, TTDA / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: Q6ZYL4

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DNA repair protein complementing XP- ... , 2 types, 2 molecules HK

#8: Protein DNA repair protein complementing XP-C cells / Xeroderma pigmentosum group C-complementing protein / p125


Mass: 106171.312 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: XPC, XPCC / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: Q01831
#11: Protein DNA repair protein complementing XP-A cells / Xeroderma pigmentosum group A-complementing protein


Mass: 31422.053 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: XPA, XPAC / Production host: Escherichia coli (E. coli) / References: UniProt: P23025

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DNA chain , 2 types, 2 molecules LM

#12: DNA chain DNA (Cy5)


Mass: 28705.611 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) synthetic construct (others)
#13: DNA chain DNA


Mass: 29180.648 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) synthetic construct (others)

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Non-polymers , 3 types, 9 molecules

#16: Chemical ChemComp-SF4 / IRON/SULFUR CLUSTER


Mass: 351.640 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Fe4S4
#17: Chemical
ChemComp-ZN / ZINC ION


Mass: 65.409 Da / Num. of mol.: 6 / Source method: obtained synthetically / Formula: Zn
#18: Chemical ChemComp-CA / CALCIUM ION


Mass: 40.078 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: Ca

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Details

Has ligand of interestN
Has protein modificationY

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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: NER dual incision complex without XPG / Type: COMPLEX / Entity ID: #1-#15 / Source: RECOMBINANT
Molecular weightValue: 0.88 MDa / Experimental value: NO
Source (natural)Organism: Homo sapiens (human)
Source (recombinant)Organism: Spodoptera frugiperda (fall armyworm)
Buffer solutionpH: 7.9
Buffer component
IDConc.NameFormulaBuffer-ID
125 mM(4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid)HEPES1
2100 mMPotassium ChlorideKCl1
32 mMCalcium ChlorideCaCl21
42 mM(Tris(2-carboxyethyl)phospine)TCEP1
51 %GlycerolGlycerol1
60.05 %Octyl GlucosideC14H28O61
SpecimenConc.: 0.6 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
Specimen supportGrid material: COPPER / Grid mesh size: 300 divisions/in. / Grid type: Quantifoil R1.2/1.3
VitrificationInstrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 277.15 K

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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 magnification: 105000 X / Nominal defocus max: 2400 nm / Nominal defocus min: 800 nm / Cs: 2.7 mm / C2 aperture diameter: 70 µm / Alignment procedure: COMA FREE
Specimen holderCryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER
Image recordingElectron dose: 55.8 e/Å2 / Film or detector model: GATAN K3 (6k x 4k)

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Processing

EM software
IDNameVersionCategory
1Gautomatchparticle selection
2SerialEMimage acquisition
4GctfCTF correction
7UCSF Chimeramodel fitting
9PHENIX1.21rc1_5127model refinement
10RELION4initial Euler assignment
11RELION4final Euler assignment
12RELION4classification
13RELION43D reconstruction
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
SymmetryPoint symmetry: C1 (asymmetric)
3D reconstructionResolution: 4.3 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 81380 / Algorithm: FOURIER SPACE / Symmetry type: POINT
Atomic model buildingProtocol: AB INITIO MODEL / Space: REAL
Atomic model building
IDPDB-ID 3D fitting-IDAccession codeInitial refinement model-IDSource nameType
18EBS

8ebs

18EBS1PDBexperimental model
28EBT

8ebt

18EBT2PDBexperimental model
38EBU

8ebu

18EBU3PDBexperimental model
RefinementStereochemistry target values: REAL-SPACE (WEIGHTED MAP SUM AT ATOM CENTERS)
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.02137299
ELECTRON MICROSCOPYf_angle_d1.13150920
ELECTRON MICROSCOPYf_dihedral_angle_d17.455700
ELECTRON MICROSCOPYf_chiral_restr0.0625760
ELECTRON MICROSCOPYf_plane_restr0.0086175

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