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- EMDB-50306: Structure of Pol II-TC-NER-STK19 complex, focused on CSA-DDB1-DDA1-CSB -

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Basic information

Entry
Database: EMDB / ID: EMD-50306
TitleStructure of Pol II-TC-NER-STK19 complex, focused on CSA-DDB1-DDA1-CSB
Map datasharpened map
Sample
  • Complex: Ternary complex of Pol II-TC-NER-STK19, focused on CSA-DDB1-DDA1-CSB
    • Protein or peptide: DNA excision repair protein ERCC-8
    • Protein or peptide: DNA damage-binding protein 1
    • Protein or peptide: DET1- and DDB1-associated protein 1
    • Protein or peptide: DNA excision repair protein ERCC-6
    • DNA: Template strand DNA
    • Protein or peptide: Non-template strand DNA
KeywordsTranscription-coupled DNA repair / TRANSCRIPTION
Function / homology
Function and homology information


negative regulation of double-strand break repair via nonhomologous end joining / regulation of transcription-coupled nucleotide-excision repair / nucleotide-excision repair complex / regulation of transcription elongation by RNA polymerase II / B-WICH complex / DNA protection / single strand break repair / positive regulation by virus of viral protein levels in host cell / double-strand break repair via classical nonhomologous end joining / response to superoxide ...negative regulation of double-strand break repair via nonhomologous end joining / regulation of transcription-coupled nucleotide-excision repair / nucleotide-excision repair complex / regulation of transcription elongation by RNA polymerase II / B-WICH complex / DNA protection / single strand break repair / positive regulation by virus of viral protein levels in host cell / double-strand break repair via classical nonhomologous end joining / response to superoxide / epigenetic programming in the zygotic pronuclei / spindle assembly involved in female meiosis / ATP-dependent chromatin remodeler activity / photoreceptor cell maintenance / Cul4-RING E3 ubiquitin ligase complex / UV-damage excision repair / positive regulation of DNA-templated transcription, elongation / response to UV-B / RNA polymerase binding / biological process involved in interaction with symbiont / regulation of mitotic cell cycle phase transition / WD40-repeat domain binding / positive regulation of transcription by RNA polymerase III / Cul4A-RING E3 ubiquitin ligase complex / Cul4B-RING E3 ubiquitin ligase complex / ubiquitin ligase complex scaffold activity / positive regulation of transcription by RNA polymerase I / negative regulation of reproductive process / negative regulation of developmental process / cullin family protein binding / viral release from host cell / site of DNA damage / protein tyrosine kinase activator activity / RNA Polymerase I Transcription Initiation / pyrimidine dimer repair / ATP-dependent activity, acting on DNA / response to X-ray / positive regulation of transcription initiation by RNA polymerase II / ectopic germ cell programmed cell death / positive regulation of double-strand break repair via homologous recombination / positive regulation of viral genome replication / transcription elongation by RNA polymerase I / proteasomal protein catabolic process / transcription-coupled nucleotide-excision repair / response to UV / protein autoubiquitination / JNK cascade / neurogenesis / positive regulation of gluconeogenesis / positive regulation of DNA repair / DNA damage checkpoint signaling / transcription elongation factor complex / regulation of DNA-templated transcription elongation / ERCC6 (CSB) and EHMT2 (G9a) positively regulate rRNA expression / response to gamma radiation / nucleotide-excision repair / helicase activity / Recognition of DNA damage by PCNA-containing replication complex / regulation of circadian rhythm / DNA Damage Recognition in GG-NER / base-excision repair / multicellular organism growth / B-WICH complex positively regulates rRNA expression / Hydrolases; Acting on acid anhydrides; Acting on acid anhydrides to facilitate cellular and subcellular movement / Dual Incision in GG-NER / Transcription-Coupled Nucleotide Excision Repair (TC-NER) / Formation of TC-NER Pre-Incision Complex / Wnt signaling pathway / Formation of Incision Complex in GG-NER / nuclear matrix / response to toxic substance / intrinsic apoptotic signaling pathway in response to DNA damage / neuron differentiation / Dual incision in TC-NER / protein polyubiquitination / positive regulation of protein catabolic process / Gap-filling DNA repair synthesis and ligation in TC-NER / neuron projection development / cellular response to UV / rhythmic process / positive regulation of proteasomal ubiquitin-dependent protein catabolic process / site of double-strand break / Neddylation / ubiquitin-dependent protein catabolic process / protein-macromolecule adaptor activity / response to oxidative stress / proteasome-mediated ubiquitin-dependent protein catabolic process / transcription by RNA polymerase II / damaged DNA binding / chromosome, telomeric region / protein ubiquitination / chromatin remodeling / DNA repair / apoptotic process / DNA damage response / chromatin binding / protein-containing complex binding / negative regulation of apoptotic process / nucleolus / positive regulation of transcription by RNA polymerase II
Similarity search - Function
DET1- and DDB1-associated protein 1, N-terminal / DET1- and DDB1-associated protein 1 / DNA excision repair protein Rad28/ERCC8/Ckn1/ATCSA-1 / : / Det1 complexing ubiquitin ligase / RSE1/DDB1/CPSF1 second beta-propeller / Cleavage/polyadenylation specificity factor, A subunit, C-terminal / Cleavage/polyadenylation specificity factor, A subunit, N-terminal / : / CPSF A subunit region ...DET1- and DDB1-associated protein 1, N-terminal / DET1- and DDB1-associated protein 1 / DNA excision repair protein Rad28/ERCC8/Ckn1/ATCSA-1 / : / Det1 complexing ubiquitin ligase / RSE1/DDB1/CPSF1 second beta-propeller / Cleavage/polyadenylation specificity factor, A subunit, C-terminal / Cleavage/polyadenylation specificity factor, A subunit, N-terminal / : / CPSF A subunit region / RSE1/DDB1/CPSF1 first beta-propeller / : / SNF2-like, N-terminal domain superfamily / SNF2, N-terminal / SNF2-related domain / Helicase conserved C-terminal domain / helicase superfamily c-terminal domain / Superfamilies 1 and 2 helicase C-terminal domain profile. / Superfamilies 1 and 2 helicase ATP-binding type-1 domain profile. / DEAD-like helicases superfamily / Helicase, C-terminal / Helicase superfamily 1/2, ATP-binding domain / G-protein beta WD-40 repeat / WD40 repeat, conserved site / Trp-Asp (WD) repeats signature. / WD domain, G-beta repeat / Trp-Asp (WD) repeats profile. / Trp-Asp (WD) repeats circular profile. / WD40 repeats / WD40 repeat / WD40-repeat-containing domain superfamily / WD40/YVTN repeat-like-containing domain superfamily / P-loop containing nucleoside triphosphate hydrolase
Similarity search - Domain/homology
DNA excision repair protein ERCC-6 / DNA excision repair protein ERCC-8 / DNA damage-binding protein 1 / DET1- and DDB1-associated protein 1
Similarity search - Component
Biological speciesHomo sapiens (human)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.2 Å
AuthorsLee S-H / Sixma TK
Funding support Netherlands, 2 items
OrganizationGrant numberCountry
Netherlands Organisation for Scientific Research (NWO)TOP 714.017.003 Netherlands
Oncode Institute Netherlands
CitationJournal: Mol Cell / Year: 2024
Title: STK19 drives transcription-coupled repair by stimulating repair complex stability, RNA Pol II ubiquitylation, and TFIIH recruitment.
Authors: Anisha R Ramadhin / Shun-Hsiao Lee / Di Zhou / Anita Salmazo / Camila Gonzalo-Hansen / Marjolein van Sluis / Cindy M A Blom / Roel C Janssens / Anja Raams / Dick Dekkers / Karel Bezstarosti ...Authors: Anisha R Ramadhin / Shun-Hsiao Lee / Di Zhou / Anita Salmazo / Camila Gonzalo-Hansen / Marjolein van Sluis / Cindy M A Blom / Roel C Janssens / Anja Raams / Dick Dekkers / Karel Bezstarosti / Dea Slade / Wim Vermeulen / Alex Pines / Jeroen A A Demmers / Carrie Bernecky / Titia K Sixma / Jurgen A Marteijn /
Abstract: Transcription-coupled nucleotide excision repair (TC-NER) efficiently eliminates DNA damage that impedes gene transcription by RNA polymerase II (RNA Pol II). TC-NER is initiated by the recognition ...Transcription-coupled nucleotide excision repair (TC-NER) efficiently eliminates DNA damage that impedes gene transcription by RNA polymerase II (RNA Pol II). TC-NER is initiated by the recognition of lesion-stalled RNA Pol II by CSB, which recruits the CRL4 ubiquitin ligase and UVSSA. RNA Pol II ubiquitylation at RPB1-K1268 by CRL4 serves as a critical TC-NER checkpoint, governing RNA Pol II stability and initiating DNA damage excision by TFIIH recruitment. However, the precise regulatory mechanisms of CRL4 activity and TFIIH recruitment remain elusive. Here, we reveal human serine/threonine-protein kinase 19 (STK19) as a TC-NER factor, which is essential for correct DNA damage removal and subsequent transcription restart. Cryogenic electron microscopy (cryo-EM) studies demonstrate that STK19 is an integral part of the RNA Pol II-TC-NER complex, bridging CSA, UVSSA, RNA Pol II, and downstream DNA. STK19 stimulates TC-NER complex stability and CRL4 activity, resulting in efficient RNA Pol II ubiquitylation and correct UVSSA and TFIIH binding. These findings underscore the crucial role of STK19 as a core TC-NER component.
History
DepositionMay 15, 2024-
Header (metadata) releaseNov 13, 2024-
Map releaseNov 13, 2024-
UpdateJan 8, 2025-
Current statusJan 8, 2025Processing site: PDBe / Status: Released

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Structure visualization

Supplemental images

emd_50306.png

Downloads & links

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Map

FileDownload / File: emd_50306.map.gz / Format: CCP4 / Size: 244.1 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Annotationsharpened map
Projections & slices

Image control

Size
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AxesZ (Sec.)Y (Row.)X (Col.)
1.06 Å/pix.
x 400 pix.
= 424. Å		1.06 Å/pix.
x 400 pix.
= 424. Å		1.06 Å/pix.
x 400 pix.
= 424. Å

Surface

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Images are generated by Spider.

Voxel sizeX=Y=Z: 1.06 Å
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Histogram (log scale)
Contour LevelBy AUTHOR: 0.13
Minimum - Maximum-0.019434175 - 1.7463738
Average (Standard dev.)0.00051138195 (±0.0143760545)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions400400400
Spacing400400400
CellA=B=C: 423.99997 Å
α=β=γ: 90.0 °

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Supplemental data

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Mask #1

Fileemd_50306_msk_1.map
Projections & Slices
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Additional map: raw map

Fileemd_50306_additional_1.map
Annotationraw map
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Half map: half map A

Fileemd_50306_half_map_1.map
Annotationhalf map A
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Half map: half map B

Fileemd_50306_half_map_2.map
Annotationhalf map B
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Sample components

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Entire : Ternary complex of Pol II-TC-NER-STK19, focused on CSA-DDB1-DDA1-CSB

EntireName: Ternary complex of Pol II-TC-NER-STK19, focused on CSA-DDB1-DDA1-CSB
Components
  • Complex: Ternary complex of Pol II-TC-NER-STK19, focused on CSA-DDB1-DDA1-CSB
    • Protein or peptide: DNA excision repair protein ERCC-8
    • Protein or peptide: DNA damage-binding protein 1
    • Protein or peptide: DET1- and DDB1-associated protein 1
    • Protein or peptide: DNA excision repair protein ERCC-6
    • DNA: Template strand DNA
    • Protein or peptide: Non-template strand DNA

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Supramolecule #1: Ternary complex of Pol II-TC-NER-STK19, focused on CSA-DDB1-DDA1-CSB

SupramoleculeName: Ternary complex of Pol II-TC-NER-STK19, focused on CSA-DDB1-DDA1-CSB
type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#6
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 360 KDa

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Macromolecule #1: DNA excision repair protein ERCC-8

MacromoleculeName: DNA excision repair protein ERCC-8 / type: protein_or_peptide / ID: 1
Details: The construct contains a Strep tag II at the C-terminus
Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: MLGFLSARQT GLEDPLRLRR AESTRRVLGL ELNKDRDVER IHGGGINTLD IEPVEGRYML SGGSDGVIVL YDLENSSRQS YYTCKAVCSI GRDHPDVHRY SVETVQWYPH DTGMFTSSSF DKTLKVWDTN TLQTADVFNF EETVYSHHMS PVSTKHCLVA VGTRGPKVQL ...String:
MLGFLSARQT GLEDPLRLRR AESTRRVLGL ELNKDRDVER IHGGGINTLD IEPVEGRYML SGGSDGVIVL YDLENSSRQS YYTCKAVCSI GRDHPDVHRY SVETVQWYPH DTGMFTSSSF DKTLKVWDTN TLQTADVFNF EETVYSHHMS PVSTKHCLVA VGTRGPKVQL CDLKSGSCSH ILQGHRQEIL AVSWSPRYDY ILATASADSR VKLWDVRRAS GCLITLDQHN GKKSQAVESA NTAHNGKVNG LCFTSDGLHL LTVGTDNRMR LWNSSNGENT LVNYGKVCNN SKKGLKFTVS CGCSSEFVFV PYGSTIAVYT VYSGEQITML KGHYKTVDCC VFQSNFQELY SGSRDCNILA WVPSLYEPVP DDDETTTKSQ LNPAFEDAWS SSDEEGGTSA WSHPQFEK

UniProtKB: DNA excision repair protein ERCC-8

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Macromolecule #2: DNA damage-binding protein 1

MacromoleculeName: DNA damage-binding protein 1 / type: protein_or_peptide / ID: 2 / Details: The construct contains a His tag at the N-terminus / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: MAHHHHHHSA ALEVLFQGPG MSYNYVVTAQ KPTAVNGCVT GHFTSAEDLN LLIAKNTRLE IYVVTAEGLR PVKEVGMYGK IAVMELFRPK GESKDLLFIL TAKYNACILE YKQSGESIDI ITRAHGNVQD RIGRPSETGI IGIIDPECRM IGLRLYDGLF KVIPLDRDNK ...String:
MAHHHHHHSA ALEVLFQGPG MSYNYVVTAQ KPTAVNGCVT GHFTSAEDLN LLIAKNTRLE IYVVTAEGLR PVKEVGMYGK IAVMELFRPK GESKDLLFIL TAKYNACILE YKQSGESIDI ITRAHGNVQD RIGRPSETGI IGIIDPECRM IGLRLYDGLF KVIPLDRDNK ELKAFNIRLE ELHVIDVKFL YGCQAPTICF VYQDPQGRHV KTYEVSLREK EFNKGPWKQE NVEAEASMVI AVPEPFGGAI IIGQESITYH NGDKYLAIAP PIIKQSTIVC HNRVDPNGSR YLLGDMEGRL FMLLLEKEEQ MDGTVTLKDL RVELLGETSI AECLTYLDNG VVFVGSRLGD SQLVKLNVDS NEQGSYVVAM ETFTNLGPIV DMCVVDLERQ GQGQLVTCSG AFKEGSLRII RNGIGIHEHA SIDLPGIKGL WPLRSDPNRE TDDTLVLSFV GQTRVLMLNG EEVEETELMG FVDDQQTFFC GNVAHQQLIQ ITSASVRLVS QEPKALVSEW KEPQAKNISV ASCNSSQVVV AVGRALYYLQ IHPQELRQIS HTEMEHEVAC LDITPLGDSN GLSPLCAIGL WTDISARILK LPSFELLHKE MLGGEIIPRS ILMTTFESSH YLLCALGDGA LFYFGLNIET GLLSDRKKVT LGTQPTVLRT FRSLSTTNVF ACSDRPTVIY SSNHKLVFSN VNLKEVNYMC PLNSDGYPDS LALANNSTLT IGTIDEIQKL HIRTVPLYES PRKICYQEVS QCFGVLSSRI EVQDTSGGTT ALRPSASTQA LSSSVSSSKL FSSSTAPHET SFGEEVEVHN LLIIDQHTFE VLHAHQFLQN EYALSLVSCK LGKDPNTYFI VGTAMVYPEE AEPKQGRIVV FQYSDGKLQT VAEKEVKGAV YSMVEFNGKL LASINSTVRL YEWTTEKELR TECNHYNNIM ALYLKTKGDF ILVGDLMRSV LLLAYKPMEG NFEEIARDFN PNWMSAVEIL DDDNFLGAEN AFNLFVCQKD SAATTDEERQ HLQEVGLFHL GEFVNVFCHG SLVMQNLGET STPTQGSVLF GTVNGMIGLV TSLSESWYNL LLDMQNRLNK VIKSVGKIEH SFWRSFHTER KTEPATGFID GDLIESFLDI SRPKMQEVVA NLQYDDGSGM KREATADDLI KVVEELTRIH

UniProtKB: DNA damage-binding protein 1

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Macromolecule #3: DET1- and DDB1-associated protein 1

MacromoleculeName: DET1- and DDB1-associated protein 1 / type: protein_or_peptide / ID: 3
Details: The construct contains a twin Strep tag and a flag tag at the C-terminus
Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString:
MADFLKGLPV YNKSNFSRFH ADSVCKASNR RPSVYLPTRE YPSEQIIVTE KTNILLRYLH QQWDKKNAAK KRDQEQVELE GESSAPPRKV ARTDSPDMHE DTDVLFQGPG AWSHPQFEKG GGSGGGSGGG SWSHPQFEKG ASGEDYKDDD DK

UniProtKB: DET1- and DDB1-associated protein 1

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Macromolecule #4: DNA excision repair protein ERCC-6

MacromoleculeName: DNA excision repair protein ERCC-6 / type: protein_or_peptide / ID: 4
Details: The construct contains a N-terminal HA tag and a C-terminal His tag
Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: MPNEGIPHSS QTQEQDCLQS QPVSNNEEMA IKQESGGDGE VEEYLSFRSV GDGLSTSAVG CASAAPRRGP ALLHIDRHQI QAVEPSAQAL ELQGLGVDVY DQDVLEQGVL QQVDNAIHEA SRASQLVDVE KEYRSVLDDL TSCTTSLRQI NKIIEQLSPQ AATSRDINRK ...String:
MPNEGIPHSS QTQEQDCLQS QPVSNNEEMA IKQESGGDGE VEEYLSFRSV GDGLSTSAVG CASAAPRRGP ALLHIDRHQI QAVEPSAQAL ELQGLGVDVY DQDVLEQGVL QQVDNAIHEA SRASQLVDVE KEYRSVLDDL TSCTTSLRQI NKIIEQLSPQ AATSRDINRK LDSVKRQKYN KEQQLKKITA KQKHLQAILG GAEVKIELDH ASLEEDAEPG PSSLGSMLMP VQETAWEELI RTGQMTPFGT QIPQKQEKKP RKIMLNEASG FEKYLADQAK LSFERKKQGC NKRAARKAPA PVTPPAPVQN KNKPNKKARV LSKKEERLKK HIKKLQKRAL QFQGKVGLPK ARRPWESDMR PEAEGDSEGE ESEYFPTEEE EEEEDDEVEG AEADLSGDGT DYELKPLPKG GKRQKKVPVQ EIDDDFFPSS GEEAEAASVG EGGGGGRKVG RYRDDGDEDY YKQRLRRWNK LRLQDKEKRL KLEDDSEESD AEFDEGFKVP GFLFKKLFKY QQTGVRWLWE LHCQQAGGIL GDEMGLGKTI QIIAFLAGLS YSKIRTRGSN YRFEGLGPTV IVCPTTVMHQ WVKEFHTWWP PFRVAILHET GSYTHKKEKL IRDVAHCHGI LITSYSYIRL MQDDISRYDW HYVILDEGHK IRNPNAAVTL ACKQFRTPHR IILSGSPMQN NLRELWSLFD FIFPGKLGTL PVFMEQFSVP ITMGGYSNAS PVQVKTAYKC ACVLRDTINP YLLRRMKSDV KMSLSLPDKN EQVLFCRLTD EQHKVYQNFV DSKEVYRILN GEMQIFSGLI ALRKICNHPD LFSGGPKNLK GLPDDELEED QFGYWKRSGK MIVVESLLKI WHKQGQRVLL FSQSRQMLDI LEVFLRAQKY TYLKMDGTTT IASRQPLITR YNEDTSIFVF LLTTRVGGLG VNLTGANRVV IYDPDWNPST DTQARERAWR IGQKKQVTVY RLLTAGTIEE KIYHRQIFKQ FLTNRVLKDP KQRRFFKSND LYELFTLTSP DASQSTETSA IFAGTGSDVQ TPKCHLKRRI QPAFGADHDV PKRKKFPASN ISVNDATSSE EKSEAKGAEV NAVTSNRSDP LKDDPHMSSN VTSNDRLGEE TNAVSGPEEL SVISGNGECS NSSGTGKTSM PSGDESIDEK LGLSYKRERP SQAQTEAFWE NKQMENNFYK HKSKTKHHSV AEEETLEKHL RPKQKPKNSK HCRDAKFEGT RIPHLVKKRR YQKQDSENKS EAKEQSNDDY VLEKLFKKSV GVHSVMKHDA IMDGASPDYV LVEAEANRVA QDALKALRLS RQRCLGAVSG VPTWTGHRGI SGAPAGKKSR FGKKRNSNFS VQHPSSTSPT EKCQDGIMKK EGKDNVPEHF SGRAEDADSS SGPLASSSLL AKMRARNHLI LPERLESESG HLQEASALLP TTEHDDLLVE MRNFIAFQAH TDGQASTREI LQEFESKLSA SQSCVFRELL RNLCTFHRTS GGEGIWKLKP EYC

UniProtKB: DNA excision repair protein ERCC-6

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Macromolecule #6: Non-template strand DNA

MacromoleculeName: Non-template strand DNA / type: protein_or_peptide / ID: 6 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
SequenceString:
CTAGTTGATC TCATATTTCA TTCCTACTCA GGAGAAGGAG CAGAGCGCTT GAGCTTGATC

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Macromolecule #5: Template strand DNA

MacromoleculeName: Template strand DNA / type: dna / ID: 5 / Classification: DNA
Source (natural)Organism: Homo sapiens (human)
SequenceString:
GATCAAGCTC AAGCGCTCTG CTCCTTCTCC CATCCTCTCG ATGGCTATGA GATCAACTAG

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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

Concentration0.15 mg/mL
BufferpH: 7.5
Component:
ConcentrationFormulaName
20.0 mMHEPESHEPES
100.0 mMNaClsodium chloride
2.0 mMMgCl2magnesium chloride
10.0 uMZnSO4zinc sulfate
1.0 mMTCEPtris(2-carboxyethyl)phosphine
GridModel: Quantifoil R1.2/1.3 / Material: COPPER / Mesh: 300 / Support film - Material: CARBON / Support film - topology: HOLEY
VitrificationCryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 277 K / Instrument: FEI VITROBOT MARK IV
DetailsThe final concentration of Pol II is around 0.15 mg/ml. The other components were added in different molar ratio. This sample was glutaraldehyde crosslinked.

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Specialist opticsEnergy filter - Slit width: 20 eV
DetailsCollected on Krios 1 at Netherlands Center for Electron Nanoscopy (NeCEN)
Image recordingFilm or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Number grids imaged: 2 / Number real images: 13029 / Average exposure time: 3.43 sec. / Average electron dose: 50.0 e/Å2
Details: Two datasets were collected from the same sample using the same parameters.
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsC2 aperture diameter: 50.0 µm / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal defocus max: 2.2 µm / Nominal defocus min: 0.8 µm / Nominal magnification: 81000
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

Particle selectionNumber selected: 2866913 / Details: Particles were combined from two datasets.
Startup modelType of model: OTHER
Final reconstructionResolution.type: BY AUTHOR / Resolution: 3.2 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: cryoSPARC / Number images used: 197558
Initial angle assignmentType: MAXIMUM LIKELIHOOD / Software - Name: cryoSPARC
Final angle assignmentType: MAXIMUM LIKELIHOOD / Software - Name: cryoSPARC
FSC plot (resolution estimation)

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