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- PDB-7xn7: RNA polymerase II elongation complex containing Spt4/5, Elf1, Spt... -

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Basic information

Entry
Database: PDB / ID: 7xn7
TitleRNA polymerase II elongation complex containing Spt4/5, Elf1, Spt6, Spn1 and Paf1C
Components
  • (DNA (198-mer)) x 2
  • (DNA-directed RNA polymerase ...) x 3
  • (DNA-directed RNA polymerases I, II, and III subunit ...) x 2
  • (RNA polymerase II ...) x 4
  • (RNA polymerase subunit ABC10- ...) x 2
  • (Transcription elongation factor ...) x 3
  • Chromatin elongation factor SPT5
  • Component of the Paf1p complex
  • Constituent of Paf1 complex with RNA polymerase II, Paf1p, Hpr1p, Ctr9, Leo1, Rtf1 and Ccr4p
  • Leo1
  • Protein that interacts with Spt6p and copurifies with Spt5p and RNA polymerase II
  • RNA (5'-R(P*AP*AP*GP*CP*CP*UP*GP*GP*UP*GP*UP*CP*UP*UP*GP*GP*GP*UP*G)-3')
  • RNA polymerase subunit ABC23, common to RNA polymerases I, II, and III
  • RNAP II-associated protein
  • RNAPII-associated chromatin remodeling Paf1 complex subunit
KeywordsTRANSCRIPTION / chromatin / nucleosome
Function / homology
Function and homology information


snoRNA transcription by RNA polymerase II / negative regulation of transcription elongation by RNA polymerase I / regulation of transcription initiation by RNA polymerase II / sno(s)RNA 3'-end processing / positive regulation of transcription elongation by RNA polymerase I / mating-type region heterochromatin / transcription antitermination factor activity, DNA binding / RNA polymerase II C-terminal domain phosphoserine binding / regulation of transcription-coupled nucleotide-excision repair / Cdc73/Paf1 complex ...snoRNA transcription by RNA polymerase II / negative regulation of transcription elongation by RNA polymerase I / regulation of transcription initiation by RNA polymerase II / sno(s)RNA 3'-end processing / positive regulation of transcription elongation by RNA polymerase I / mating-type region heterochromatin / transcription antitermination factor activity, DNA binding / RNA polymerase II C-terminal domain phosphoserine binding / regulation of transcription-coupled nucleotide-excision repair / Cdc73/Paf1 complex / triplex DNA binding / co-transcriptional lncRNA 3' end processing, cleavage and polyadenylation pathway / global genome nucleotide-excision repair / regulation of mRNA 3'-end processing / DSIF complex / regulation of rRNA processing / intracellular mRNA localization / rDNA heterochromatin / rDNA binding / negative regulation of DNA recombination / intracellular phosphate ion homeostasis / rDNA heterochromatin formation / negative regulation of mitophagy / mRNA 3'-end processing / transcription elongation factor activity / chromatin-protein adaptor activity / cellular response to stress / poly(A)+ mRNA export from nucleus / nuclear-transcribed mRNA catabolic process, deadenylation-dependent decay / transcription elongation-coupled chromatin remodeling / positive regulation of nuclear-transcribed mRNA poly(A) tail shortening / RNA polymerase II complex binding / termination of RNA polymerase II transcription / DNA-templated transcription termination / 7-methylguanosine mRNA capping / termination of RNA polymerase I transcription / maintenance of transcriptional fidelity during transcription elongation by RNA polymerase II / positive regulation of translational initiation / transcription initiation at RNA polymerase I promoter / transcription by RNA polymerase III / nuclear-transcribed mRNA catabolic process / pericentric heterochromatin / nucleolar large rRNA transcription by RNA polymerase I / termination of RNA polymerase III transcription / transcription initiation at RNA polymerase III promoter / RNA polymerase I complex / RNA polymerase III complex / transcription elongation by RNA polymerase I / tRNA transcription by RNA polymerase III / RNA polymerase II, core complex / nucleosome binding / transcription-coupled nucleotide-excision repair / translation initiation factor binding / negative regulation of autophagy / transcription initiation-coupled chromatin remodeling / transcription elongation factor complex / regulation of DNA-templated transcription elongation / G1/S transition of mitotic cell cycle / positive regulation of transcription elongation by RNA polymerase II / P-body / transcription initiation at RNA polymerase II promoter / euchromatin / transcription elongation by RNA polymerase II / kinetochore / transcription by RNA polymerase II / ribonucleoside binding / transcription coregulator activity / DNA-directed RNA polymerase / rRNA processing / DNA-directed RNA polymerase activity / histone binding / nucleosome assembly / single-stranded DNA binding / heterochromatin formation / RNA polymerase II-specific DNA-binding transcription factor binding / nucleic acid binding / nucleotide binding / protein dimerization activity / single-stranded RNA binding / mRNA binding / RNA-directed RNA polymerase activity / chromatin binding / regulation of transcription by RNA polymerase II / nucleolus / DNA-templated transcription / protein-containing complex binding / chromatin / negative regulation of transcription by RNA polymerase II / DNA binding / zinc ion binding / nucleus
Similarity search - Function
: / Spt6, S1/OB domain / : / Plus-3 domain / Plus3-like superfamily / Plus-3 domain / Plus3 domain profile. / Short conserved domain in transcriptional regulators. / Leo1-like protein / Leo1-like protein ...: / Spt6, S1/OB domain / : / Plus-3 domain / Plus3-like superfamily / Plus-3 domain / Plus3 domain profile. / Short conserved domain in transcriptional regulators. / Leo1-like protein / Leo1-like protein / Spt5 C-terminal nonapeptide repeat binding Spt4 / RNA polymerase II associated factor Paf1 / Paf1 / Cdc73/Parafibromin / RNA polymerase-associated protein Ctr9 / Cell division control protein 73, C-terminal / Cell division control protein 73, C-terminal domain superfamily / RNA pol II accessory factor, Cdc73 family, C-terminal / Transcription elongation factor 1 / Transcription elongation factor 1 superfamily / Transcription elongation factor Elf1 like / Spt6 acidic, N-terminal domain / Helix-turn-helix DNA-binding domain of Spt6 / Transcription elongation factor Spt6, YqgF domain / Transcription elongation factor Spt6, helix-hairpin-helix motif / Spt6, SH2 domain, C terminus / Acidic N-terminal SPT6 / Helix-hairpin-helix motif / Holliday-junction resolvase-like of SPT6 / Helix-turn-helix DNA-binding domain of SPT6 / Tex-like protein, HTH domain superfamily / Tex-like domain superfamily / Spt6, Death-like domain / : / Tex central region-like / Transcription elongation factor Spt6 / Spt6, SH2 domain, N terminus / Spt6, SH2 domain / SH2 domain / YqgF/RNase H-like domain superfamily / Transcription initiation Spt4 / Spt4 superfamily / TFIIS N-terminal domain profile. / Spt4/RpoE2 zinc finger / Spt4/RpoE2 zinc finger / Spt4/RpoE2 zinc finger / TFIIS helical bundle-like domain / Transcription factor IIS, N-terminal / : / Transcription elongation factor SPT5, KOWx domain / Transcription elongation factor SPT5, second KOW domain / Transcription elongation factor SPT5, fifth KOW domain / Transcription elongation factor SPT5, KOW1 domain / Transcription elongation factor SPT5, fourth KOW domain / Transcription elongation factor Spt5, eukaryote / Spt5 transcription elongation factor, N-terminal / Spt5, KOW domain repeat 2 / Spt5, KOW domain repeat 3 / Spt5, KOW domain repeat 5 / Spt5 transcription elongation factor, acidic N-terminal / NGN domain, eukaryotic / Spt5, KOW domain repeat 1 / Spt5, KOW domain repeat 4 / NGN domain / Transcription elongation factor SPT5 / Early transcription elongation factor of RNA pol II, NGN section / Tetratricopeptide repeat / RuvA domain 2-like / TFIIS/LEDGF domain superfamily / NusG, N-terminal domain superfamily / DNA-directed RNA polymerase II subunit Rpb4-like / RNA polymerase Rpb4/RPC9, core / DNA-directed RNA-polymerase II subunit / RNA polymerase Rpb1 C-terminal repeat / 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 / S1 domain profile. / Pol II subunit B9, C-terminal zinc ribbon / RNA polymerase RBP11 / RNA polymerase subunit Rpb4/RPC9 / RNA polymerase Rpb4 / 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 / HRDC-like superfamily / RNA polymerase Rpb2, domain 5 / RNA polymerase Rpb2, domain 5 / 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
Similarity search - Domain/homology
DNA / DNA (> 10) / DNA (> 100) / RNA / RNA (> 10) / Transcription elongation factor 1 homolog / DNA-directed RNA polymerase subunit beta / DNA-directed RNA polymerases I, II, and III subunit RPABC5 / Transcription elongation factor SPT4 / Constituent of Paf1 complex with RNA polymerase II, Paf1p, Hpr1p, Ctr9, Leo1, Rtf1 and Ccr4p ...DNA / DNA (> 10) / DNA (> 100) / RNA / RNA (> 10) / Transcription elongation factor 1 homolog / DNA-directed RNA polymerase subunit beta / DNA-directed RNA polymerases I, II, and III subunit RPABC5 / Transcription elongation factor SPT4 / Constituent of Paf1 complex with RNA polymerase II, Paf1p, Hpr1p, Ctr9, Leo1, Rtf1 and Ccr4p / DNA-directed RNA polymerases I, II, and III subunit RPABC2 / DNA-directed RNA polymerases I, II, and III subunit RPABC3 / RNA polymerase II subunit B32 / Transcription elongation factor SPT5 / RNA polymerase-associated protein LEO1 / RNA polymerase II subunit B12.5 / DNA-directed RNA polymerase subunit / Component of the Paf1p complex / Transcription elongation factor Spt6 / DNA-directed RNA polymerase II subunit RPB3 / Protein that interacts with Spt6p and copurifies with Spt5p and RNA polymerase II / RNAP II-associated protein / DNA-directed RNA polymerase subunit / RNA polymerase subunit ABC10-alpha / DNA-directed RNA polymerase subunit / RNAPII-associated chromatin remodeling Paf1 complex subunit / DNA-directed RNA polymerases I, II, and III subunit RPABC1
Similarity search - Component
Biological speciesKomagataella phaffii (fungus)
synthetic construct (others)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.1 Å
AuthorsEhara, H. / Kujirai, T. / Shirouzu, M. / Kurumizaka, H. / Sekine, S.
Funding support Japan, 7items
OrganizationGrant numberCountry
Japan Society for the Promotion of Science (JSPS)JP20H03201 Japan
Japan Society for the Promotion of Science (JSPS)JP20H05690 Japan
Japan Society for the Promotion of Science (JSPS)JP20H00449 Japan
Japan Society for the Promotion of Science (JSPS)JP18H05534 Japan
Japan Agency for Medical Research and Development (AMED)JP20am0101082 Japan
Japan Agency for Medical Research and Development (AMED)JP21am0101076 Japan
Japan Science and TechnologyJPMJER1901 Japan
CitationJournal: Science / Year: 2022
Title: Structural basis of nucleosome disassembly and reassembly by RNAPII elongation complex with FACT.
Authors: Haruhiko Ehara / Tomoya Kujirai / Mikako Shirouzu / Hitoshi Kurumizaka / Shun-Ichi Sekine /
Abstract: During gene transcription, RNA polymerase II (RNAPII) traverses nucleosomes in chromatin, but the mechanism has remained elusive. Using cryo-electron microscopy, we obtained structures of the RNAPII ...During gene transcription, RNA polymerase II (RNAPII) traverses nucleosomes in chromatin, but the mechanism has remained elusive. Using cryo-electron microscopy, we obtained structures of the RNAPII elongation complex (EC) passing through a nucleosome in the presence of the transcription elongation factors Spt6, Spn1, Elf1, Spt4/5, and Paf1C and the histone chaperone FACT (facilitates chromatin transcription). The structures show snapshots of EC progression on DNA mediating downstream nucleosome disassembly, followed by its reassembly upstream of the EC, which is facilitated by FACT. FACT dynamically adapts to successively occurring subnucleosome intermediates, forming an interface with the EC. Spt6, Spt4/5, and Paf1C form a "cradle" at the EC DNA-exit site and support the upstream nucleosome reassembly. These structures explain the mechanism by which the EC traverses nucleosomes while maintaining the chromatin structure and epigenetic information.
History
DepositionApr 28, 2022Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Sep 7, 2022Provider: repository / Type: Initial release
Revision 1.1Sep 21, 2022Group: Database references / Category: citation / citation_author
Item: _citation.journal_volume / _citation.page_first ..._citation.journal_volume / _citation.page_first / _citation.page_last / _citation_author.identifier_ORCID
Revision 1.2Oct 12, 2022Group: Database references / Category: citation / citation_author
Item: _citation.page_first / _citation.page_last / _citation_author.identifier_ORCID
Revision 1.3Jul 3, 2024Group: Data collection / Category: chem_comp_atom / chem_comp_bond / em_admin / Item: _em_admin.last_update

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: DNA-directed RNA polymerase subunit
B: DNA-directed RNA polymerase subunit beta
C: RNA polymerase II third largest subunit B44, part of central core
D: RNA polymerase II subunit B32
E: DNA-directed RNA polymerases I, II, and III subunit RPABC1
F: RNA polymerase subunit ABC23, common to RNA polymerases I, II, and III
G: RNA polymerase II subunit
H: DNA-directed RNA polymerases I, II, and III subunit RPABC3
I: DNA-directed RNA polymerase subunit
J: RNA polymerase subunit ABC10-beta, common to RNA polymerases I, II, and III
K: RNA polymerase II subunit B12.5
L: RNA polymerase subunit ABC10-alpha
M: Transcription elongation factor 1 homolog
N: DNA (198-mer)
P: RNA (5'-R(P*AP*AP*GP*CP*CP*UP*GP*GP*UP*GP*UP*CP*UP*UP*GP*GP*GP*UP*G)-3')
T: DNA (198-mer)
V: Transcription elongation factor SPT4
W: Chromatin elongation factor SPT5
m: Transcription elongation factor Spt6
n: Protein that interacts with Spt6p and copurifies with Spt5p and RNA polymerase II
q: Component of the Paf1p complex
r: RNAPII-associated chromatin remodeling Paf1 complex subunit
u: Leo1
v: RNAP II-associated protein
x: Constituent of Paf1 complex with RNA polymerase II, Paf1p, Hpr1p, Ctr9, Leo1, Rtf1 and Ccr4p
hetero molecules


Theoretical massNumber of molelcules
Total (without water)1,316,11436
Polymers1,315,43625
Non-polymers67811
Water00
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

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DNA-directed RNA polymerase ... , 3 types, 3 molecules ABI

#1: Protein DNA-directed RNA polymerase subunit


Mass: 194107.422 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Komagataella phaffii (fungus) / References: UniProt: C4R4Y0, DNA-directed RNA polymerase
#2: Protein DNA-directed RNA polymerase subunit beta


Mass: 139746.094 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Komagataella phaffii (fungus) / Strain: GS115 / ATCC 20864 / References: UniProt: C4QZQ7, DNA-directed RNA polymerase
#9: Protein DNA-directed RNA polymerase subunit


Mass: 13612.320 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Komagataella phaffii (fungus) / References: UniProt: F2QPE6

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RNA polymerase II ... , 4 types, 4 molecules CDGK

#3: Protein RNA polymerase II third largest subunit B44, part of central core


Mass: 34216.293 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Komagataella phaffii (fungus) / Strain: GS115 / ATCC 20864 / References: UniProt: C4R7L2
#4: Protein RNA polymerase II subunit B32


Mass: 20622.980 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Komagataella phaffii (fungus) / Strain: GS115 / ATCC 20864 / References: UniProt: C4R2U9
#7: Protein RNA polymerase II subunit


Mass: 18802.625 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Komagataella phaffii (fungus) / Strain: GS115 / ATCC 20864 / References: UniProt: C4R9A1
#11: Protein RNA polymerase II subunit B12.5


Mass: 13832.896 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Komagataella phaffii (fungus) / Strain: GS115 / ATCC 20864 / References: UniProt: C4R3Z5

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DNA-directed RNA polymerases I, II, and III subunit ... , 2 types, 2 molecules EH

#5: Protein DNA-directed RNA polymerases I, II, and III subunit RPABC1


Mass: 24962.680 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Komagataella phaffii (fungus) / References: UniProt: F2QX94
#8: Protein DNA-directed RNA polymerases I, II, and III subunit RPABC3


Mass: 16249.220 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Komagataella phaffii (fungus) / Strain: GS115 / ATCC 20864 / References: UniProt: C4R273

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Protein , 8 types, 8 molecules FWnqruvx

#6: Protein RNA polymerase subunit ABC23, common to RNA polymerases I, II, and III


Mass: 17803.588 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Komagataella phaffii (fungus) / Strain: GS115 / ATCC 20864 / References: UniProt: C4R1V1
#18: Protein Chromatin elongation factor SPT5 / Chromatin elongation factor spt5 / transcription Elongation factor SPT5


Mass: 101459.422 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Komagataella phaffii (fungus) / Strain: GS115 / ATCC 20864 / Gene: PAS_chr3_1136 / Production host: Escherichia coli (E. coli) / References: UniProt: C4R370
#20: Protein Protein that interacts with Spt6p and copurifies with Spt5p and RNA polymerase II


Mass: 46907.785 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Komagataella phaffii (fungus) / Strain: GS115 / ATCC 20864 / Gene: PAS_chr4_0349 / Production host: Escherichia coli (E. coli) / References: UniProt: C4R7L8
#21: Protein Component of the Paf1p complex


Mass: 124979.008 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Komagataella phaffii (fungus) / Gene: PAS_chr3_1035 / Production host: Escherichia coli (E. coli) / References: UniProt: C4R6B2
#22: Protein RNAPII-associated chromatin remodeling Paf1 complex subunit


Mass: 62301.246 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Komagataella phaffii (fungus) / Gene: RTF1, PP7435_Chr1-1405 / Production host: Escherichia coli (E. coli) / References: UniProt: F2QQ42
#23: Protein Leo1


Mass: 52387.715 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Komagataella phaffii (fungus) / Strain: GS115 / ATCC 20864 / Gene: PAS_chr3_1154 / Production host: Escherichia coli (E. coli) / References: UniProt: C4R3K1
#24: Protein RNAP II-associated protein


Mass: 46045.980 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Komagataella phaffii (fungus) / Strain: GS115 / ATCC 20864 / Gene: PAS_chr4_0902 / Production host: Escherichia coli (E. coli) / References: UniProt: C4R997
#25: Protein Constituent of Paf1 complex with RNA polymerase II, Paf1p, Hpr1p, Ctr9, Leo1, Rtf1 and Ccr4p


Mass: 44760.652 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Komagataella phaffii (fungus) / Strain: GS115 / ATCC 20864 / Gene: PAS_chr2-1_0674 / Production host: Escherichia coli (E. coli) / References: UniProt: C4R1E6

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RNA polymerase subunit ABC10- ... , 2 types, 2 molecules JL

#10: Protein RNA polymerase subunit ABC10-beta, common to RNA polymerases I, II, and III


Mass: 8554.064 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Komagataella phaffii (fungus) / Strain: GS115 / ATCC 20864 / References: UniProt: C4R009
#12: Protein RNA polymerase subunit ABC10-alpha


Mass: 7862.048 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Komagataella phaffii (fungus) / References: UniProt: F2QMI1

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Transcription elongation factor ... , 3 types, 3 molecules MVm

#13: Protein Transcription elongation factor 1 homolog


Mass: 12606.896 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Komagataella phaffii (fungus) / Strain: GS115 / ATCC 20864 / Gene: PAS_c121_0006 / Production host: Escherichia coli (E. coli) / References: UniProt: C4QZ45
#17: Protein Transcription elongation factor SPT4


Mass: 12039.614 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Komagataella phaffii (fungus) / Strain: GS115 / ATCC 20864 / Gene: PAS_chr2-1_0350 / Production host: Escherichia coli (E. coli) / References: UniProt: C4R0E6
#19: Protein Transcription elongation factor Spt6


Mass: 173241.625 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Komagataella phaffii (fungus) / Strain: GS115 / ATCC 20864 / Gene: PAS_chr4_0308 / Production host: Spodoptera frugiperda (fall armyworm) / References: UniProt: C4R7H2

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DNA chain , 2 types, 2 molecules NT

#14: DNA chain DNA (198-mer)


Mass: 61381.906 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) synthetic construct (others)
#16: DNA chain DNA (198-mer)


Mass: 60869.977 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

#15: RNA chain RNA (5'-R(P*AP*AP*GP*CP*CP*UP*GP*GP*UP*GP*UP*CP*UP*UP*GP*GP*GP*UP*G)-3')


Mass: 6081.562 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) synthetic construct (others)

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Non-polymers , 2 types, 11 molecules

#26: Chemical
ChemComp-ZN / ZINC ION


Mass: 65.409 Da / Num. of mol.: 10 / Source method: obtained synthetically / Formula: Zn
#27: Chemical ChemComp-MG / MAGNESIUM ION


Mass: 24.305 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: Mg

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Details

Has ligand of interestN

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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 containing Spt4/5, Elf1, Spt6, Spn1 and Paf1C
Type: COMPLEX / Entity ID: #1-#25 / Source: RECOMBINANT
Molecular weightExperimental value: NO
Source (natural)Organism: Komagataella phaffii (fungus)
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: 2500 nm / Nominal defocus min: 1000 nm
Image recordingElectron dose: 51 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k)

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Processing

CTF correctionType: NONE
3D reconstructionResolution: 3.1 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 444232 / Symmetry type: POINT

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