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- PDB-8s5n: RNA polymerase II core initially transcribing complex with an ord... -

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Basic information

Entry
Database: PDB / ID: 8s5n
TitleRNA polymerase II core initially transcribing complex with an ordered RNA of 12 nt
Components
  • (DNA-directed RNA polymerase ...) x 7
  • (DNA-directed RNA polymerases I, II, and III subunit ...) x 3
  • (General transcription factor IIF subunit ...) x 2
  • (RNA polymerase II subunit ...) x 2
  • (Transcription initiation factor ...) x 4
  • General transcription factor IIE subunit 1
  • Non-template DNA
  • RNA
  • TATA-box-binding protein
  • Template DNA
KeywordsTRANSCRIPTION / RNA polymerase II / promoter escape / de novo transcription
Function / homology
Function and homology information


positive regulation of core promoter binding / RNA polymerase II core complex assembly / meiotic sister chromatid cohesion / RNA polymerase transcription factor SL1 complex / transcription factor TFIIE complex / phosphatase activator activity / RNA polymerase III general transcription initiation factor activity / transcription open complex formation at RNA polymerase II promoter / RNA polymerase I core promoter sequence-specific DNA binding / TFIIF-class transcription factor complex binding ...positive regulation of core promoter binding / RNA polymerase II core complex assembly / meiotic sister chromatid cohesion / RNA polymerase transcription factor SL1 complex / transcription factor TFIIE complex / phosphatase activator activity / RNA polymerase III general transcription initiation factor activity / transcription open complex formation at RNA polymerase II promoter / RNA polymerase I core promoter sequence-specific DNA binding / TFIIF-class transcription factor complex binding / RNA Polymerase III Transcription Initiation From Type 1 Promoter / RNA Polymerase III Transcription Initiation From Type 2 Promoter / transcriptional start site selection at RNA polymerase II promoter / RNA Polymerase III Transcription Initiation From Type 3 Promoter / Formation of RNA Pol II elongation complex / Formation of the Early Elongation Complex / Transcriptional regulation by small RNAs / RNA Polymerase II Pre-transcription Events / TP53 Regulates Transcription of DNA Repair Genes / FGFR2 alternative splicing / RNA polymerase II transcribes snRNA genes / mRNA Capping / mRNA Splicing - Minor Pathway / Processing of Capped Intron-Containing Pre-mRNA / RNA Polymerase II Promoter Escape / RNA Polymerase II Transcription Pre-Initiation And Promoter Opening / RNA Polymerase II Transcription Initiation / RNA Polymerase II Transcription Elongation / RNA Polymerase II Transcription Initiation And Promoter Clearance / RNA Pol II CTD phosphorylation and interaction with CE / Estrogen-dependent gene expression / Formation of TC-NER Pre-Incision Complex / Dual incision in TC-NER / Gap-filling DNA repair synthesis and ligation in TC-NER / mRNA Splicing - Major Pathway / transcription factor TFIIF complex / RNA Polymerase III Abortive And Retractive Initiation / transcription factor TFIIA complex / female germ cell nucleus / male pronucleus / female pronucleus / Abortive elongation of HIV-1 transcript in the absence of Tat / RNA polymerase II general transcription initiation factor binding / germinal vesicle / RNA Polymerase I Transcription Termination / transcription preinitiation complex / FGFR2 alternative splicing / nuclear thyroid hormone receptor binding / Viral Messenger RNA Synthesis / Signaling by FGFR2 IIIa TM / RNA Pol II CTD phosphorylation and interaction with CE during HIV infection / RNA Pol II CTD phosphorylation and interaction with CE / transcription factor TFIID complex / Formation of the Early Elongation Complex / Formation of the HIV-1 Early Elongation Complex / RNA polymerase II general transcription initiation factor activity / cell division site / mRNA Capping / protein acetylation / 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 / maintenance of transcriptional fidelity during transcription elongation by RNA polymerase II / RNA polymerase III activity / mRNA Splicing - Minor Pathway / acetyltransferase activity / RNA polymerase II complex binding / RNA Polymerase I Transcription Initiation / Pausing and recovery of Tat-mediated HIV elongation / Tat-mediated HIV elongation arrest and recovery / aryl hydrocarbon receptor binding / viral transcription / positive regulation of nuclear-transcribed mRNA poly(A) tail shortening / Processing of Capped Intron-Containing Pre-mRNA / HIV elongation arrest and recovery / Pausing and recovery of HIV elongation / TFIIB-class transcription factor binding / transcription by RNA polymerase III / RNA polymerase II transcribes snRNA genes / RNA polymerase II activity / Tat-mediated elongation of the HIV-1 transcript / positive regulation of transcription initiation by RNA polymerase II / transcription elongation by RNA polymerase I / Formation of HIV-1 elongation complex containing HIV-1 Tat / RNA polymerase II core promoter sequence-specific DNA binding / transcription-coupled nucleotide-excision repair / spindle assembly / tRNA transcription by RNA polymerase III / RNA polymerase I complex / RNA polymerase I activity / RNA polymerase III complex / positive regulation of translational initiation / Formation of HIV elongation complex in the absence of HIV Tat / RNA polymerase II, core complex / RNA Polymerase II Transcription Elongation / core promoter sequence-specific DNA binding
Similarity search - Function
Transcription factor TFIIE alpha subunit, C-terminal / C-terminal general transcription factor TFIIE alpha / Transcription factor TFIIE beta subunit, DNA-binding domain / Transcription initiation factor TFIIE, beta subunit / TFA2, Winged helix domain 2 / TFIIE beta subunit core domain / TFA2 Winged helix domain 2 / TFIIE beta central core DNA-binding domain profile. / Transcription initiation factor IIE subunit alpha, N-terminal / Transcription factor TFE/TFIIEalpha HTH domain ...Transcription factor TFIIE alpha subunit, C-terminal / C-terminal general transcription factor TFIIE alpha / Transcription factor TFIIE beta subunit, DNA-binding domain / Transcription initiation factor TFIIE, beta subunit / TFA2, Winged helix domain 2 / TFIIE beta subunit core domain / TFA2 Winged helix domain 2 / TFIIE beta central core DNA-binding domain profile. / Transcription initiation factor IIE subunit alpha, N-terminal / Transcription factor TFE/TFIIEalpha HTH domain / TFIIEalpha/SarR/Rpc3 HTH domain / Transcription factor E / TFIIE alpha subunit / TFE/IIEalpha-type HTH domain profile. / Transcription initiation factor IIE / Transcription factor IIA, alpha/beta subunit / Transcription factor IIA, alpha/beta subunit / Transcription factor IIA, alpha/beta subunit / Transcription initiation factor IIA, gamma subunit / Transcription factor IIA, alpha-helical domain / Transcription factor IIA, beta-barrel / Transcription initiation factor IIA, gamma subunit, C-terminal / Transcription initiation factor IIA, gamma subunit, N-terminal / Transcription initiation factor IIA, gamma subunit, helical domain / Transcription initiation factor IIA, gamma subunit / Transcription initiation factor IIF, beta subunit / TFIIF beta subunit, HTH domain / TFIIF, beta subunit, N-terminal / TFIIF, beta subunit HTH domain / TFIIF, beta subunit N-terminus / Transcription initiation factor IIF, alpha subunit / Transcription initiation factor IIF, alpha subunit (TFIIF-alpha) / Transcription Factor IIF, Rap30/Rap74, interaction / Transcription factor TFIIB, cyclin-like domain / Transcription factor TFIIB, conserved site / Transcription factor TFIIB repeat / Transcription factor TFIIB repeat signature. / Transcription factor TFIIB / Zinc finger TFIIB-type profile. / Zinc finger, TFIIB-type / TFIIB zinc-binding / TATA-box binding protein, eukaryotic / TATA-box binding protein / TATA-box binding protein, conserved site / Transcription factor TFIID (or TATA-binding protein, TBP) / Transcription factor TFIID repeat signature. / TBP 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 / Cyclin-like / domain present in cyclins, TFIIB and Retinoblastoma / Cyclin-like superfamily / Zinc finger TFIIS-type signature. / HRDC-like superfamily / RNA polymerase Rpb7-like , N-terminal / RNA polymerase Rpb7-like, N-terminal domain superfamily / RNA polymerase subunit Rpb7-like / SHS2 domain found in N terminus of Rpb7p/Rpc25p/MJ0397 / RNA polymerase Rpb2, domain 5 / RNA polymerase Rpb2, domain 5 / RNA polymerase Rpb2, domain 4 / RNA polymerase Rpb2, domain 4 / DNA-directed RNA polymerase, M/15kDa subunit / RNA polymerases M/15 Kd subunit / RNA polymerase subunit 9 / DNA-directed RNA polymerase M, 15kDa subunit, conserved site / RNA polymerases M / 15 Kd subunits signature. / DNA-directed RNA polymerase subunit/transcription factor S / : / RNA polymerase, Rpb8 / DNA-directed RNA polymerases I, II, and III subunit RPABC4 / RNA polymerase Rpb8 / RNA polymerase subunit 8 / RNA polymerase, Rpb5, N-terminal / RNA polymerase Rpb5, N-terminal domain superfamily / RNA polymerase Rpb5, N-terminal domain / DNA-directed RNA polymerase subunit 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, 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.
Similarity search - Domain/homology
DNA / DNA (> 10) / DNA (> 100) / RNA / RNA (> 10) / RNA polymerase II subunit D / DNA-directed RNA polymerase subunit / DNA-directed RNA polymerases I, II, and III subunit RPABC5 / DNA-directed RNA polymerase subunit / RNA polymerase II subunit K ...DNA / DNA (> 10) / DNA (> 100) / RNA / RNA (> 10) / RNA polymerase II subunit D / DNA-directed RNA polymerase subunit / DNA-directed RNA polymerases I, II, and III subunit RPABC5 / DNA-directed RNA polymerase subunit / RNA polymerase II subunit K / DNA-directed RNA polymerases I, II, and III subunit RPABC2 / DNA-directed RNA polymerase II subunit RPB11-a / DNA-directed RNA polymerases I, II, and III subunit RPABC3 / DNA-directed RNA polymerase II subunit RPB3 / DNA-directed RNA polymerase subunit beta / DNA-directed RNA polymerase II subunit E / General transcription factor IIF subunit 2 / TATA-box-binding protein / General transcription factor IIE subunit 1 / Transcription initiation factor IIE subunit beta / General transcription factor IIF subunit 1 / Transcription initiation factor IIA subunit 1 / Transcription initiation factor IIA subunit 2 / DNA-directed RNA polymerase II subunit RPB9 / Transcription initiation factor IIB
Similarity search - Component
Biological speciesHomo sapiens (human)
Sus scrofa (pig)
unidentified adenovirus
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.4 Å
AuthorsZhan, Y. / Grabbe, F. / Oberbeckmann, E. / Dienemann, C. / Cramer, P.
Funding support Germany, 1items
OrganizationGrant numberCountry
Max Planck Society Germany
CitationJournal: Mol Cell / Year: 2024
Title: Three-step mechanism of promoter escape by RNA polymerase II.
Authors: Yumeng Zhan / Frauke Grabbe / Elisa Oberbeckmann / Christian Dienemann / Patrick Cramer /
Abstract: The transition from transcription initiation to elongation is highly regulated in human cells but remains incompletely understood at the structural level. In particular, it is unclear how ...The transition from transcription initiation to elongation is highly regulated in human cells but remains incompletely understood at the structural level. In particular, it is unclear how interactions between RNA polymerase II (RNA Pol II) and initiation factors are broken to enable promoter escape. Here, we reconstitute RNA Pol II promoter escape in vitro and determine high-resolution structures of initially transcribing complexes containing 8-, 10-, and 12-nt ordered RNAs and two elongation complexes containing 14-nt RNAs. We suggest that promoter escape occurs in three major steps. First, the growing RNA displaces the B-reader element of the initiation factor TFIIB without evicting TFIIB. Second, the rewinding of the transcription bubble coincides with the eviction of TFIIA, TFIIB, and TBP. Third, the binding of DSIF and NELF facilitates TFIIE and TFIIH dissociation, establishing the paused elongation complex. This three-step model for promoter escape fills a gap in our understanding of the initiation-elongation transition of RNA Pol II transcription.
History
DepositionFeb 24, 2024Deposition site: PDBE / Processing site: PDBE
Revision 1.0Apr 10, 2024Provider: repository / Type: Initial release
Revision 1.1Apr 24, 2024Group: Database references / Category: citation
Item: _citation.country / _citation.journal_abbrev ..._citation.country / _citation.journal_abbrev / _citation.journal_id_ASTM / _citation.journal_id_CSD / _citation.journal_id_ISSN / _citation.pdbx_database_id_DOI / _citation.pdbx_database_id_PubMed / _citation.title / _citation.year
Revision 1.2May 15, 2024Group: Database references / Category: citation
Item: _citation.journal_volume / _citation.page_first / _citation.page_last

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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: DNA-directed RNA polymerase II subunit RPB3
D: RNA polymerase II subunit D
E: DNA-directed RNA polymerase II subunit E
F: DNA-directed RNA polymerases I, II, and III subunit RPABC2
G: DNA-directed RNA polymerase II subunit RPB7
H: DNA-directed RNA polymerases I, II, and III subunit RPABC3
I: DNA-directed RNA polymerase II subunit RPB9
J: DNA-directed RNA polymerases I, II, and III subunit RPABC5
K: DNA-directed RNA polymerase II subunit RPB11-a
L: RNA polymerase II subunit K
M: Transcription initiation factor IIB
N: Non-template DNA
O: TATA-box-binding protein
P: RNA
Q: General transcription factor IIF subunit 1
R: General transcription factor IIF subunit 2
T: Template DNA
U: Transcription initiation factor IIA subunit 1
V: Transcription initiation factor IIA subunit 2
W: General transcription factor IIE subunit 1
X: Transcription initiation factor IIE subunit beta
hetero molecules


Theoretical massNumber of molelcules
Total (without water)923,62134
Polymers922,94323
Non-polymers67811
Water00
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: electron microscopy, not applicable
TypeNameSymmetry operationNumber
identity operation1_5551
Buried area116150 Å2
ΔGint-614 kcal/mol
Surface area230930 Å2

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Components

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

#1: Protein DNA-directed RNA polymerase subunit


Mass: 218889.547 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Sus scrofa (pig) / References: UniProt: A0A7M4DUC2
#2: Protein DNA-directed RNA polymerase subunit beta


Mass: 147938.594 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Sus scrofa (pig) / References: UniProt: I3LGP4, DNA-directed RNA polymerase
#3: Protein DNA-directed RNA polymerase II subunit RPB3


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


Mass: 24644.318 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Sus scrofa (pig) / References: UniProt: I3LSI7
#7: Protein DNA-directed RNA polymerase II subunit RPB7


Mass: 19314.283 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Sus scrofa (pig) / References: UniProt: A0A4X1VKG7
#9: Protein DNA-directed RNA polymerase II subunit RPB9 / RNA polymerase II subunit B9 / DNA-directed RNA polymerase II subunit I / RNA polymerase II 14.5 ...RNA polymerase II subunit B9 / DNA-directed RNA polymerase II subunit I / RNA polymerase II 14.5 kDa subunit / RPB14.5


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


Mass: 13310.284 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Sus scrofa (pig) / References: UniProt: F1RKE4

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

#4: Protein RNA polymerase II subunit D


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


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

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

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


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


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


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

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Transcription initiation factor ... , 4 types, 4 molecules MUVX

#13: Protein Transcription initiation factor IIB / General transcription factor TFIIB / S300-II


Mass: 34877.949 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: GTF2B, TF2B, TFIIB / Production host: Escherichia coli (E. coli) / References: UniProt: Q00403, histone acetyltransferase
#20: Protein Transcription initiation factor IIA subunit 1 / General transcription factor IIA subunit 1 / TFIIAL / Transcription initiation factor TFIIA 42 kDa ...General transcription factor IIA subunit 1 / TFIIAL / Transcription initiation factor TFIIA 42 kDa subunit / TFIIA-42


Mass: 41544.551 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: GTF2A1, TF2A1 / Production host: Trichoplusia ni (cabbage looper) / References: UniProt: P52655
#21: Protein Transcription initiation factor IIA subunit 2 / General transcription factor IIA subunit 2 / TFIIA p12 subunit / TFIIA-12 / TFIIAS / Transcription ...General transcription factor IIA subunit 2 / TFIIA p12 subunit / TFIIA-12 / TFIIAS / Transcription initiation factor IIA gamma chain / TFIIA-gamma


Mass: 12469.091 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: GTF2A2, TF2A2 / Production host: Trichoplusia ni (cabbage looper) / References: UniProt: P52657
#23: Protein Transcription initiation factor IIE subunit beta / TFIIE-beta / General transcription factor IIE subunit 2


Mass: 33106.824 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: GTF2E2, TF2E2 / Production host: Escherichia coli (E. coli) / References: UniProt: P29084

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DNA chain , 2 types, 2 molecules NT

#14: DNA chain Non-template DNA


Mass: 43236.555 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) unidentified adenovirus
#19: DNA chain Template DNA


Mass: 42569.098 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) unidentified adenovirus

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Protein , 2 types, 2 molecules OW

#15: Protein TATA-box-binding protein / TATA sequence-binding protein / TATA-binding factor / TATA-box factor / Transcription initiation ...TATA sequence-binding protein / TATA-binding factor / TATA-box factor / Transcription initiation factor TFIID TBP subunit


Mass: 37729.938 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: TBP, GTF2D1, TF2D, TFIID / Production host: Escherichia coli (E. coli) / References: UniProt: P20226
#22: Protein General transcription factor IIE subunit 1 / General transcription factor IIE 56 kDa subunit / Transcription initiation factor IIE subunit alpha ...General transcription factor IIE 56 kDa subunit / Transcription initiation factor IIE subunit alpha / TFIIE-alpha


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

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RNA chain , 1 types, 1 molecules P

#16: RNA chain RNA


Mass: 3769.344 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) unidentified adenovirus

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

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


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


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

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Non-polymers , 2 types, 11 molecules

#24: Chemical
ChemComp-ZN / ZINC ION


Mass: 65.409 Da / Num. of mol.: 10 / Source method: obtained synthetically / Formula: Zn / Feature type: SUBJECT OF INVESTIGATION
#25: Chemical ChemComp-MG / MAGNESIUM ION


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

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Details

Has ligand of interestY

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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

Component
IDNameTypeEntity IDParent-IDSource
1Core initially transcribing complex with and ordered RNA of 12 ntCOMPLEX#1-#230MULTIPLE SOURCES
2RNA polymerase IICOMPLEX#1-#121NATURAL
Source (natural)
IDEntity assembly-IDOrganismNcbi tax-ID
11Sus scrofa (pig)9823
22Sus scrofa (pig)9823
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: FEI TITAN KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Nominal defocus max: 1700 nm / Nominal defocus min: 700 nm
Image recordingElectron dose: 40 e/Å2 / Film or detector model: GATAN K3 (6k x 4k)

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Processing

CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 3.4 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 18827 / Symmetry type: POINT
RefinementCross valid method: NONE
Stereochemistry target values: GeoStd + Monomer Library + CDL v1.2
Displacement parametersBiso mean: 142.72 Å2
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.009445809
ELECTRON MICROSCOPYf_angle_d0.904362305
ELECTRON MICROSCOPYf_chiral_restr0.06096873
ELECTRON MICROSCOPYf_plane_restr0.00647644
ELECTRON MICROSCOPYf_dihedral_angle_d16.118417724

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