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- PDB-7nkx: RNA polymerase II-Spt4/5-nucleosome-Chd1 structure -

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Entry
Database: PDB / ID: 7nkx
TitleRNA polymerase II-Spt4/5-nucleosome-Chd1 structure
Components
  • (DNA-directed RNA polymerase II subunit ...) x 7
  • (DNA-directed RNA polymerases I, II, and III subunit ...) x 5
  • Chromatin elongation factor SPT4
  • Chromo domain-containing protein 1
  • DNA (128-MER)
  • DNA (139-MER)
  • Histone H2A type 1
  • Histone H2B 1.1
  • Histone H3.2
  • Histone H4
  • RNA
  • Transcription elongation factor SPT5
KeywordsTRANSCRIPTION / chromatin remodelling / nucleosome / chromatin
Function / homology
Function and homology information


negative regulation of transcription elongation by RNA polymerase I / positive regulation of transcription elongation by RNA polymerase I / regulation of transcription-coupled nucleotide-excision repair / nucleolar chromatin / regulation of transcriptional start site selection at RNA polymerase II promoter / snRNP binding / negative regulation of DNA-templated DNA replication / regulation of rRNA processing / RNA polymerase I core binding / regulation of chromatin organization ...negative regulation of transcription elongation by RNA polymerase I / positive regulation of transcription elongation by RNA polymerase I / regulation of transcription-coupled nucleotide-excision repair / nucleolar chromatin / regulation of transcriptional start site selection at RNA polymerase II promoter / snRNP binding / negative regulation of DNA-templated DNA replication / regulation of rRNA processing / RNA polymerase I core binding / regulation of chromatin organization / DSIF complex / intracellular mRNA localization / rDNA binding / RNA polymerase I general transcription initiation factor binding / nucleosome organization / SLIK (SAGA-like) complex / regulation of transcription elongation by RNA polymerase II / RPB4-RPB7 complex / U4 snRNA binding / sister chromatid cohesion / nuclear-transcribed mRNA catabolic process, deadenylation-dependent decay / ATP-dependent chromatin remodeler activity / SAGA complex / RNA Polymerase I Transcription Initiation / Processing of Capped Intron-Containing Pre-mRNA / RNA Polymerase III Transcription Initiation From Type 2 Promoter / transcription elongation-coupled chromatin remodeling / RNA Pol II CTD phosphorylation and interaction with CE / Formation of the Early Elongation Complex / mRNA Capping / RNA polymerase II transcribes snRNA genes / TP53 Regulates Transcription of DNA Repair Genes / 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 / termination of RNA polymerase II transcription / RNA-templated transcription / termination of RNA polymerase III transcription / RNA Polymerase II Pre-transcription Events / : / Formation of TC-NER Pre-Incision Complex / : / termination of RNA polymerase I transcription / spliceosomal complex assembly / transcription initiation at RNA polymerase III promoter / RNA Polymerase I Promoter Escape / RNA polymerase II complex binding / nucleolar large rRNA transcription by RNA polymerase I / Gap-filling DNA repair synthesis and ligation in TC-NER / maintenance of transcriptional fidelity during transcription elongation by RNA polymerase II / positive regulation of nuclear-transcribed mRNA poly(A) tail shortening / transcription initiation at RNA polymerase I promoter / transcription by RNA polymerase I / Estrogen-dependent gene expression / transcription by RNA polymerase III / chromosome, centromeric region / Dual incision in TC-NER / transcription elongation by RNA polymerase I / U5 snRNA binding / positive regulation of translational initiation / RNA polymerase I complex / RNA polymerase III complex / ATP-dependent activity, acting on DNA / transcription-coupled nucleotide-excision repair / RNA polymerase III activity / RNA polymerase II, core complex / U2 snRNA binding / U6 snRNA binding / tRNA transcription by RNA polymerase III / positive regulation of autophagy / RNA polymerase I activity / translesion synthesis / RNA polymerase II activity / U1 snRNA binding / translation initiation factor binding / methylated histone binding / helicase activity / DNA-templated transcription initiation / transcription elongation by RNA polymerase II / transcription initiation at RNA polymerase II promoter / positive regulation of transcription elongation by RNA polymerase II / Hydrolases; Acting on acid anhydrides; Acting on acid anhydrides to facilitate cellular and subcellular movement / P-body / ribonucleoside binding / chromatin DNA binding / DNA-directed 5'-3' RNA polymerase activity / cytoplasmic stress granule / DNA-directed RNA polymerase / structural constituent of chromatin / peroxisome / nucleosome / nucleosome assembly / ribosome biogenesis / chromosome / single-stranded DNA binding / histone binding / transcription by RNA polymerase II / nucleic acid binding / single-stranded RNA binding
Similarity search - Function
Chromodomain helicase DNA-binding domain / Chromodomain helicase DNA-binding domain 1 / Chromodomain-helicase-DNA-binding protein 1-like, C-terminal domain / Chromodomain-helicase-DNA-binding protein 1-like, C-terminal / DUF4208 / Spt5 C-terminal nonapeptide repeat binding Spt4 / Transcription initiation Spt4 / Spt4 superfamily / Spt4/RpoE2 zinc finger / Spt4/RpoE2 zinc finger ...Chromodomain helicase DNA-binding domain / Chromodomain helicase DNA-binding domain 1 / Chromodomain-helicase-DNA-binding protein 1-like, C-terminal domain / Chromodomain-helicase-DNA-binding protein 1-like, C-terminal / DUF4208 / Spt5 C-terminal nonapeptide repeat binding Spt4 / Transcription initiation Spt4 / Spt4 superfamily / Spt4/RpoE2 zinc finger / Spt4/RpoE2 zinc finger / Spt4/RpoE2 zinc finger / Transcription elongation factor Spt5, eukaryote / Spt5 transcription elongation factor, N-terminal / Spt5 C-terminal domain / Spt5, KOW domain repeat 2 / Spt5, KOW domain repeat 3 / Spt5, KOW domain repeat 5 / Spt5 transcription elongation factor, acidic N-terminal / Spt5 C-terminal nonapeptide repeat binding Spt4 / NGN domain, eukaryotic / Spt5, KOW domain repeat 1 / Spt5, KOW domain repeat 4 / Chromo domain, conserved site / NGN domain / Transcription elongation factor SPT5 / Early transcription elongation factor of RNA pol II, NGN section / Chromo domain signature. / Chromo domain / Chromo (CHRromatin Organisation MOdifier) domain / Chromo and chromo shadow domain profile. / NusG, N-terminal / In Spt5p, this domain may confer affinity for Spt4p. It possesses a RNP-like fold. / : / NusG, N-terminal domain superfamily / Chromo/chromo shadow domain / Chromatin organization modifier domain / SNF2-like, N-terminal domain superfamily / SNF2, N-terminal / SNF2-related domain / Chromo-like domain superfamily / DNA-directed RNA polymerase II subunit Rpb4-like / RNA polymerase Rpb4/RPC9, core / DNA-directed RNA-polymerase II subunit / RNA polymerase II, heptapeptide repeat, eukaryotic / RNA polymerase Rpb1, domain 6 / RNA polymerase Rpb1, domain 6 / RNA polymerase Rpb1 C-terminal repeat / Eukaryotic RNA polymerase II heptapeptide repeat. / 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 subunit Rpb7-like / RNA polymerase Rpb7-like , N-terminal / RNA polymerase Rpb7-like, N-terminal domain superfamily / SHS2 domain found in N terminus of Rpb7p/Rpc25p/MJ0397 / HRDC-like superfamily / RNA polymerase Rpb2, domain 4 / RNA polymerase Rpb2, domain 4 / RNA polymerase Rpb2, domain 5 / RNA polymerase Rpb2, domain 5 / DNA-directed RNA polymerase, M/15kDa subunit / RNA polymerases M/15 Kd subunit / RNA polymerase subunit 9 / 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. / 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, 7 kDa subunit / RNA polymerase archaeal subunit P/eukaryotic subunit RPABC4 / RNA polymerase, subunit H/Rpb5, conserved site / RNA polymerases H / 23 Kd subunits signature. / RNA polymerase subunit CX / DNA-directed RNA polymerase Rpb11, 13-16kDa subunit, conserved site / DNA-directed RNA polymerase subunit Rpo5/Rpb5 / DNA-directed RNA polymerase subunit Rpo11 / RNA polymerases L / 13 to 16 Kd subunits signature. / 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, RBP11-like dimerisation domain / RNA polymerase Rpb3/Rpb11 dimerisation domain / RNA polymerase, subunit H/Rpb5 C-terminal
Similarity search - Domain/homology
ADENOSINE-5'-DIPHOSPHATE / BERYLLIUM TRIFLUORIDE ION / DNA / DNA (> 10) / DNA (> 100) / RNA / RNA (> 10) / Transcription elongation factor SPT4 / Histone H2B 1.1 / DNA-directed RNA polymerase II subunit RPB1 ...ADENOSINE-5'-DIPHOSPHATE / BERYLLIUM TRIFLUORIDE ION / DNA / DNA (> 10) / DNA (> 100) / RNA / RNA (> 10) / Transcription elongation factor SPT4 / Histone H2B 1.1 / DNA-directed RNA polymerase II subunit RPB1 / Histone H2A type 1 / DNA-directed RNA polymerase II subunit RPB2 / DNA-directed RNA polymerase II subunit RPB3 / DNA-directed RNA polymerase II subunit RPB4 / DNA-directed RNA polymerases I, II, and III subunit RPABC1 / DNA-directed RNA polymerases I, II, and III subunit RPABC2 / DNA-directed RNA polymerases I, II, and III subunit RPABC3 / DNA-directed RNA polymerases I, II, and III subunit RPABC5 / Transcription elongation factor SPT5 / DNA-directed RNA polymerase II subunit RPB9 / Chromo domain-containing protein 1 / DNA-directed RNA polymerase II subunit RPB7 / DNA-directed RNA polymerase II subunit RPB11 / DNA-directed RNA polymerases I, II, and III subunit RPABC4 / Histone H4 / Histone H3.2
Similarity search - Component
Biological speciesXenopus laevis (African clawed frog)
Saccharomyces cerevisiae (brewer's yeast)
synthetic construct (others)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.9 Å
AuthorsFarnung, L. / Ochmann, M. / Engeholm, M. / Cramer, P.
Funding supportEuropean Union, Germany, 4items
OrganizationGrant numberCountry
European Research Council (ERC)693023European Union
German Research Foundation (DFG)SFB860 Germany
German Research Foundation (DFG)SPP2191 Germany
German Research Foundation (DFG)EXC 2067/1- 390729940 Germany
CitationJournal: Nat Struct Mol Biol / Year: 2021
Title: Structural basis of nucleosome transcription mediated by Chd1 and FACT.
Authors: Lucas Farnung / Moritz Ochmann / Maik Engeholm / Patrick Cramer /
Abstract: Efficient transcription of RNA polymerase II (Pol II) through nucleosomes requires the help of various factors. Here we show biochemically that Pol II transcription through a nucleosome is ...Efficient transcription of RNA polymerase II (Pol II) through nucleosomes requires the help of various factors. Here we show biochemically that Pol II transcription through a nucleosome is facilitated by the chromatin remodeler Chd1 and the histone chaperone FACT when the elongation factors Spt4/5 and TFIIS are present. We report cryo-EM structures of transcribing Saccharomyces cerevisiae Pol II-Spt4/5-nucleosome complexes with bound Chd1 or FACT. In the first structure, Pol II transcription exposes the proximal histone H2A-H2B dimer that is bound by Spt5. Pol II has also released the inhibitory DNA-binding region of Chd1 that is poised to pump DNA toward Pol II. In the second structure, Pol II has generated a partially unraveled nucleosome that binds FACT, which excludes Chd1 and Spt5. These results suggest that Pol II progression through a nucleosome activates Chd1, enables FACT binding and eventually triggers transfer of FACT together with histones to upstream DNA.
History
DepositionFeb 19, 2021Deposition site: PDBE / Processing site: PDBE
Revision 1.0Aug 25, 2021Provider: repository / Type: Initial release
Revision 1.1Jul 10, 2024Group: Data collection / Category: chem_comp_atom / chem_comp_bond / em_admin / Item: _em_admin.last_update

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Assembly

Deposited unit
A: DNA-directed RNA polymerase II subunit RPB1
B: DNA-directed RNA polymerase II subunit RPB2
C: DNA-directed RNA polymerase II subunit RPB3
E: DNA-directed RNA polymerases I, II, and III subunit RPABC1
F: DNA-directed RNA polymerases I, II, and III subunit RPABC2
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
L: DNA-directed RNA polymerases I, II, and III subunit RPABC4
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
T: DNA (139-MER)
N: DNA (128-MER)
W: Chromo domain-containing protein 1
P: RNA
Y: Chromatin elongation factor SPT4
Z: Transcription elongation factor SPT5
D: DNA-directed RNA polymerase II subunit RPB4
G: DNA-directed RNA polymerase II subunit RPB7
hetero molecules


Theoretical massNumber of molelcules
Total (without water)1,053,54537
Polymers1,052,50426
Non-polymers1,04111
Water00
1


  • Idetical with deposited unit
  • defined by author&software
  • Evidence: gel filtration
TypeNameSymmetry operationNumber
identity operation1_5551
Buried area132270 Å2
ΔGint-773 kcal/mol
Surface area250920 Å2
MethodPISA

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Components

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DNA-directed RNA polymerase II subunit ... , 7 types, 7 molecules ABCIKDG

#1: Protein DNA-directed RNA polymerase II subunit RPB1 / RNA polymerase II subunit B1 / DNA-directed RNA polymerase III largest subunit / RNA polymerase II ...RNA polymerase II subunit B1 / DNA-directed RNA polymerase III largest subunit / RNA polymerase II subunit B220


Mass: 191821.578 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae (brewer's yeast) / Strain: BJ5464 / References: UniProt: P04050, DNA-directed RNA polymerase
#2: Protein DNA-directed RNA polymerase II subunit RPB2 / RNA polymerase II subunit 2 / B150 / DNA-directed RNA polymerase II 140 kDa polypeptide


Mass: 138937.297 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae (brewer's yeast) / Strain: BJ5464 / References: UniProt: P08518, DNA-directed RNA polymerase
#3: Protein DNA-directed RNA polymerase II subunit RPB3 / RNA polymerase II subunit B3 / B44.5 / DNA-directed RNA polymerase II 45 kDa polypeptide


Mass: 35330.457 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae (brewer's yeast) / Strain: BJ5464 / References: UniProt: P16370
#7: Protein DNA-directed RNA polymerase II subunit RPB9 / RNA polymerase II subunit B9 / B12.6 / DNA-directed RNA polymerase II 14.2 kDa polypeptide / DNA- ...RNA polymerase II subunit B9 / B12.6 / DNA-directed RNA polymerase II 14.2 kDa polypeptide / DNA-directed RNA polymerase II subunit 9


Mass: 14308.161 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae (brewer's yeast) / Strain: BJ5464 / References: UniProt: P27999
#9: Protein DNA-directed RNA polymerase II subunit RPB11 / RNA polymerase II subunit B11 / B13.6 / DNA-directed RNA polymerase II 13.6 kDa polypeptide


Mass: 13633.493 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae (brewer's yeast) / Strain: BJ5464 / References: UniProt: P38902
#21: Protein DNA-directed RNA polymerase II subunit RPB4 / RNA polymerase II subunit B4 / B32 / DNA-directed RNA polymerase II 32 kDa polypeptide


Mass: 25451.191 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae (brewer's yeast) / Strain: BJ5464 / References: UniProt: P20433
#22: Protein DNA-directed RNA polymerase II subunit RPB7 / RNA polymerase II subunit B7 / B16


Mass: 19081.053 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae (brewer's yeast) / Strain: BJ5464 / References: UniProt: P34087

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DNA-directed RNA polymerases I, II, and III subunit ... , 5 types, 5 molecules EFHJL

#4: Protein DNA-directed RNA polymerases I, II, and III subunit RPABC1 / RNA polymerases I / II / and III subunit ABC1 / ABC27 / DNA-directed RNA polymerases I / and III 27 ...RNA polymerases I / II / and III subunit ABC1 / ABC27 / DNA-directed RNA polymerases I / and III 27 kDa polypeptide


Mass: 25117.094 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae (brewer's yeast) / Strain: BJ5464 / References: UniProt: P20434
#5: Protein DNA-directed RNA polymerases I, II, and III subunit RPABC2 / RNA polymerases I / II / and III subunit ABC2 / ABC23 / DNA-directed RNA polymerases I / and III 23 ...RNA polymerases I / II / and III subunit ABC2 / ABC23 / DNA-directed RNA polymerases I / and III 23 kDa polypeptide


Mass: 17931.834 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae (brewer's yeast) / Strain: BJ5464 / References: UniProt: P20435
#6: Protein DNA-directed RNA polymerases I, II, and III subunit RPABC3 / RNA polymerases I / II / and III subunit ABC3 / ABC14.4 / ABC14.5 / DNA-directed RNA polymerases I ...RNA polymerases I / II / and III subunit ABC3 / ABC14.4 / ABC14.5 / DNA-directed RNA polymerases I / and III 14.5 kDa polypeptide


Mass: 16525.363 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae (brewer's yeast) / Strain: BJ5464 / References: UniProt: P20436
#8: Protein DNA-directed RNA polymerases I, II, and III subunit RPABC5 / RNA polymerases I / II / and III subunit ABC5 / ABC10-beta / ABC8 / DNA-directed RNA polymerases I ...RNA polymerases I / II / and III subunit ABC5 / ABC10-beta / ABC8 / DNA-directed RNA polymerases I / and III 8.3 kDa polypeptide


Mass: 8290.732 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae (brewer's yeast) / Strain: BJ5464 / References: UniProt: P22139
#10: Protein DNA-directed RNA polymerases I, II, and III subunit RPABC4 / RNA polymerases I / II / and III subunit ABC4 / ABC10-alpha


Mass: 7729.969 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae (brewer's yeast) / Strain: BJ5464 / References: UniProt: P40422

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Protein , 7 types, 11 molecules aebfcgdhWYZ

#11: Protein Histone H3.2


Mass: 15435.126 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
#12: 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
#13: Protein Histone H2A type 1


Mass: 14109.436 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
#14: Protein Histone H2B 1.1 / H2B1.1


Mass: 13655.948 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
#17: Protein Chromo domain-containing protein 1 / ATP-dependent helicase CHD1


Mass: 168496.609 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (yeast)
Strain: ATCC 204508 / S288c / Gene: CHD1, YER164W, SYGP-ORF4 / Cell line (production host): Hi5 / Production host: Trichoplusia ni (cabbage looper)
References: UniProt: P32657, Hydrolases; Acting on acid anhydrides; Acting on acid anhydrides to facilitate cellular and subcellular movement
#19: Protein Chromatin elongation factor SPT4 / Transcription elongation factor SPT4


Mass: 11168.772 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Saccharomyces cerevisiae (brewer's yeast)
Strain: BJ5464
Gene: PACBIOSEQ_LOCUS2707, PACBIOSEQ_LOCUS2757, SCNYR20_0003027800, SCP684_0002027900
Cell line (production host): Hi5 / Production host: Trichoplusia ni (cabbage looper) / References: UniProt: A0A6A5PX04
#20: Protein Transcription elongation factor SPT5 / Chromatin elongation factor SPT5


Mass: 116096.234 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (yeast)
Strain: ATCC 204508 / S288c / Gene: SPT5, YML010W, YM9571.08 / Cell line (production host): Hi5 / Production host: Trichoplusia ni (cabbage looper) / References: UniProt: P27692

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DNA chain , 2 types, 2 molecules TN

#15: DNA chain DNA (139-MER)


Mass: 56835.344 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) synthetic construct (others)
#16: DNA chain DNA (128-MER)


Mass: 54656.711 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) synthetic construct (others)

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RNA chain , 1 types, 1 molecules P

#18: RNA chain RNA


Mass: 21902.600 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) synthetic construct (others)

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Non-polymers , 4 types, 11 molecules

#23: Chemical
ChemComp-ZN / ZINC ION


Mass: 65.409 Da / Num. of mol.: 8 / Source method: obtained synthetically / Formula: Zn
#24: Chemical ChemComp-MG / MAGNESIUM ION


Mass: 24.305 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Mg
#25: Chemical ChemComp-ADP / ADENOSINE-5'-DIPHOSPHATE


Mass: 427.201 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C10H15N5O10P2 / Comment: ADP, energy-carrying molecule*YM
#26: Chemical ChemComp-BEF / BERYLLIUM TRIFLUORIDE ION


Mass: 66.007 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: BeF3

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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-Spt4/5-Chd1-nucleosome / Type: COMPLEX / Entity ID: #1-#22 / Source: MULTIPLE SOURCES
Molecular weightExperimental value: NO
Buffer solutionpH: 7.4
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: FEI TITAN KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: SPOT SCAN
Electron lensMode: BRIGHT FIELD
Image recordingElectron dose: 39 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k)

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Processing

CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 2.9 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 30876 / Symmetry type: POINT

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