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- PDB-6tps: early intermediate RNA Polymerase I Pre-initiation complex - eiPIC -

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Entry
Database: PDB / ID: 6tps
Titleearly intermediate RNA Polymerase I Pre-initiation complex - eiPIC
Components
  • (DNA foreign) x 2
  • (DNA-directed RNA polymerase I subunit ...) x 7
  • (DNA-directed RNA polymerases I and III subunit ...) x 2
  • (DNA-directed RNA polymerases I, II, and III subunit ...) x 5
  • (RNA polymerase I-specific transcription initiation factor ...) x 4
  • NTS-DNA (27-MER)
  • TS-DNA (27-MER)
KeywordsTRANSCRIPTION / Transcription Initiation / Ribosome Biosynthesis / RNA Polymerase I
Function / homology
Function and homology information


RNA polymerase I transcription regulatory region sequence-specific DNA binding / RNA polymerase I core factor complex / RNA polymerase I core binding / RNA polymerase I general transcription initiation factor activity / RNA polymerase I general transcription initiation factor binding / rDNA binding / RNA polymerase I core promoter sequence-specific DNA binding / RNA polymerase I preinitiation complex assembly / RNA Polymerase I Transcription Initiation / Processing of Capped Intron-Containing Pre-mRNA ...RNA polymerase I transcription regulatory region sequence-specific DNA binding / RNA polymerase I core factor complex / RNA polymerase I core binding / RNA polymerase I general transcription initiation factor activity / RNA polymerase I general transcription initiation factor binding / rDNA binding / RNA polymerase I core promoter sequence-specific DNA binding / RNA polymerase I preinitiation complex assembly / RNA Polymerase I Transcription Initiation / Processing of Capped Intron-Containing Pre-mRNA / RNA Polymerase III Transcription Initiation From Type 2 Promoter / 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 III transcription / RNA Polymerase II Pre-transcription Events / RNA-templated transcription / Formation of TC-NER Pre-Incision Complex / regulation of cell size / transcription initiation at RNA polymerase III promoter / RNA Polymerase I Promoter Escape / termination of RNA polymerase I transcription / Gap-filling DNA repair synthesis and ligation in TC-NER / transcription initiation at RNA polymerase I promoter / nucleolar large rRNA transcription by RNA polymerase I / Estrogen-dependent gene expression / transcription by RNA polymerase III / Dual incision in TC-NER / RNA polymerase I complex / transcription elongation by RNA polymerase I / RNA polymerase III complex / RNA polymerase II, core complex / tRNA transcription by RNA polymerase III / transcription by RNA polymerase I / TBP-class protein binding / transcription initiation at RNA polymerase II promoter / transcription elongation by RNA polymerase II / promoter-specific chromatin binding / ribonucleoside binding / DNA-directed RNA polymerase / DNA-directed RNA polymerase activity / peroxisome / ribosome biogenesis / nucleic acid binding / RNA polymerase II-specific DNA-binding transcription factor binding / transcription by RNA polymerase II / protein dimerization activity / nucleolus / negative regulation of transcription by RNA polymerase II / mitochondrion / DNA binding / zinc ion binding / nucleoplasm / metal ion binding / nucleus / cytoplasm
Similarity search - Function
Single alpha-helices involved in coiled-coils or other helix-helix interfaces - #3390 / RNA polymerase I specific transcription initiation factor RRN3 / RNA polymerase I specific transcription initiation factor RRN3 / Transcription initiation factor Rrn11 / RNA polymerase I-specific transcription initiation factor Rrn6 / Transcription initiation factor Rrn11, budding yeast / RNA polymerase I-specific transcription initiation factor RRN6-like / : / : / : ...Single alpha-helices involved in coiled-coils or other helix-helix interfaces - #3390 / RNA polymerase I specific transcription initiation factor RRN3 / RNA polymerase I specific transcription initiation factor RRN3 / Transcription initiation factor Rrn11 / RNA polymerase I-specific transcription initiation factor Rrn6 / Transcription initiation factor Rrn11, budding yeast / RNA polymerase I-specific transcription initiation factor RRN6-like / : / : / : / : / RNA polymerase I-specific transcription initiation factor Rrn11 / Rrn6, beta-propeller / RRN6, K-rich C-terminal domain / Rrn6, helical bundle domain / Transcription initiation factor Rrn7, Zinc-finger / RNA polymerase I transcription initiation factor TAF1B/Rrn7 / : / : / Zinc-finger of RNA-polymerase I-specific TFIIB, Rrn7 / Rrn7/TAF1B, N-terminal cyclin domain / Rrn7/TAF1B, C-terminal cyclin domain / : / DNA-directed RNA polymerase I, subunit RPA34.5 / DNA-directed RNA polymerase I subunit RPA34.5 / RNA polymerase I, subunit Rpa14, fungi / Yeast RNA polymerase I subunit RPA14 / RNA polymerase I associated factor, A49-like / A49-like RNA polymerase I associated factor / Rpa43, N-terminal ribonucleoprotein (RNP) domain / RNA polymerase Rpb7-like, N-terminal domain / Pol I subunit A12, C-terminal zinc ribbon / RPA43, OB domain / RPA43 OB domain in RNA Pol I / DNA-directed RNA polymerase I subunit RPA2, domain 4 / DNA-directed RNA pol I, largest subunit / : / RNA polymerase I, Rpa2 specific domain / Hypothetical Protein Ta0175; Chain: A, domain 2 - #20 / DCoH-like / RNA polymerase alpha subunit dimerisation domain / Hypothetical Protein Ta0175; Chain: A, domain 2 / Dna-directed Rna Polymerases I, Ii, And Iii 27 Kd Polypeptide; Chain: A; domain 1 / RNA polymerase, Rpb5, N-terminal domain / RNA polymerase ii, chain L / RPB5-like RNA polymerase subunit / Dna-directed Rna Polymerase Ii 140kd Polypeptide; Chain: B; Domain 6 / DNA-directed RNA polymerase, subunit 2, domain 6 / DNA-directed RNA polymerases I and III subunit AC19 / DNA-directed RNA polymerases I and III subunit AC40 / Dna-directed Rna Polymerase Ii 140kd Polypeptide; Chain: B; domain 3 / RNA polymerase Rpb2, domain 2 / RNA polymerase II, Rpb2 subunit, wall domain / RNA polymerase subunit, RPB6/omega / Eukaryotic RPB6 RNA polymerase subunit / RNA polymerase, RBP11-like subunit / Rubrerythrin, domain 2 / DNA-directed RNA polymerase, insert domain / RNA Polymerase Alpha Subunit; Chain A, domain 2 / Single alpha-helices involved in coiled-coils or other helix-helix interfaces / Gyrase A; domain 2 / Homeodomain-like / Zinc finger TFIIS-type signature. / 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 / 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 RPB6 / 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, 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, 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 Rpb11, 13-16kDa subunit, conserved site / DNA-directed RNA polymerase subunit Rpo11 / RNA polymerases L / 13 to 16 Kd subunits signature. / RNA polymerase subunit RPABC4/transcription elongation factor Spt4 / Zinc finger, TFIIS-type
Similarity search - Domain/homology
DNA / DNA (> 10) / DNA-directed RNA polymerases I and III subunit RPAC1 / DNA-directed RNA polymerase I subunit RPA190 / 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 polymerase I subunit RPA135 / DNA-directed RNA polymerases I, II, and III subunit RPABC5 / DNA-directed RNA polymerases I and III subunit RPAC2 ...DNA / DNA (> 10) / DNA-directed RNA polymerases I and III subunit RPAC1 / DNA-directed RNA polymerase I subunit RPA190 / 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 polymerase I subunit RPA135 / DNA-directed RNA polymerases I, II, and III subunit RPABC5 / DNA-directed RNA polymerases I and III subunit RPAC2 / DNA-directed RNA polymerase I subunit RPA12 / RNA polymerase I-specific transcription initiation factor RRN6 / RNA polymerase I-specific transcription initiation factor RRN3 / DNA-directed RNA polymerases I, II, and III subunit RPABC4 / RNA polymerase I-specific transcription initiation factor RRN7 / DNA-directed RNA polymerase I subunit RPA43 / DNA-directed RNA polymerase I subunit RPA34 / DNA-directed RNA polymerase I subunit RPA14 / DNA-directed RNA polymerase I subunit RPA49 / RNA polymerase I-specific transcription initiation factor RRN11
Similarity search - Component
Biological speciesSaccharomyces cerevisiae (brewer's yeast)
Synthetic construct (others)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.54 Å
AuthorsPilsl, M. / Engel, C.
Funding support Germany, 2items
OrganizationGrant numberCountry
German Research Foundation (DFG)EN 1204/1-1 Germany
German Research Foundation (DFG)CRC 960 Germany
CitationJournal: Nat Commun / Year: 2020
Title: Structural basis of RNA polymerase I pre-initiation complex formation and promoter melting.
Authors: Michael Pilsl / Christoph Engel /
Abstract: Transcription of the ribosomal RNA precursor by RNA polymerase (Pol) I is a prerequisite for the biosynthesis of ribosomes in eukaryotes. Compared to Pols II and III, the mechanisms underlying ...Transcription of the ribosomal RNA precursor by RNA polymerase (Pol) I is a prerequisite for the biosynthesis of ribosomes in eukaryotes. Compared to Pols II and III, the mechanisms underlying promoter recognition, initiation complex formation and DNA melting by Pol I substantially diverge. Here, we report the high-resolution cryo-EM reconstruction of a Pol I early initiation intermediate assembled on a double-stranded promoter scaffold that prevents the establishment of downstream DNA contacts. Our analyses demonstrate how efficient promoter-backbone interaction is achieved by combined re-arrangements of flexible regions in the 'core factor' subunits Rrn7 and Rrn11. Furthermore, structure-function analysis illustrates how destabilization of the melted DNA region correlates with contraction of the polymerase cleft upon transcription activation, thereby combining promoter recruitment with DNA-melting. This suggests that molecular mechanisms and structural features of Pol I initiation have co-evolved to support the efficient melting, initial transcription and promoter clearance required for high-level rRNA synthesis.
History
DepositionDec 14, 2019Deposition site: PDBE / Processing site: PDBE
Revision 1.0Mar 18, 2020Provider: repository / Type: Initial release
Revision 1.1May 22, 2024Group: Data collection / Database references / Category: chem_comp_atom / chem_comp_bond / database_2
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession

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Assembly

Deposited unit
A: DNA-directed RNA polymerase I subunit RPA190
B: DNA-directed RNA polymerase I subunit RPA135
C: DNA-directed RNA polymerases I and III subunit RPAC1
D: DNA-directed RNA polymerase I subunit RPA14
E: DNA-directed RNA polymerases I, II, and III subunit RPABC1
F: DNA-directed RNA polymerases I, II, and III subunit RPABC2
G: DNA-directed RNA polymerase I subunit RPA43
H: DNA-directed RNA polymerases I, II, and III subunit RPABC3
I: DNA-directed RNA polymerase I subunit RPA12
J: DNA-directed RNA polymerases I, II, and III subunit RPABC5
K: DNA-directed RNA polymerases I and III subunit RPAC2
L: DNA-directed RNA polymerases I, II, and III subunit RPABC4
M: DNA-directed RNA polymerase I subunit RPA49
N: DNA-directed RNA polymerase I subunit RPA34
O: RNA polymerase I-specific transcription initiation factor RRN3
P: RNA polymerase I-specific transcription initiation factor RRN6
Q: RNA polymerase I-specific transcription initiation factor RRN7
R: RNA polymerase I-specific transcription initiation factor RRN11
S: NTS-DNA (27-MER)
T: TS-DNA (27-MER)
U: DNA foreign
V: DNA foreign
hetero molecules


Theoretical massNumber of molelcules
Total (without water)880,40830
Polymers879,92522
Non-polymers4828
Water00
1


  • Idetical with deposited unit
  • defined by author&software
  • Evidence: gel filtration
TypeNameSymmetry operationNumber
identity operation1_5551
Buried area111880 Å2
ΔGint-623 kcal/mol
Surface area263700 Å2
MethodPISA

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Components

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DNA-directed RNA polymerase I subunit ... , 7 types, 7 molecules ABDGIMN

#1: Protein DNA-directed RNA polymerase I subunit RPA190 / DNA-directed RNA polymerase I 190 kDa polypeptide / A190 / DNA-directed RNA polymerase I largest subunit


Mass: 186676.969 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Details: (.ZN)(.ZN)(.MG) / Source: (natural) Saccharomyces cerevisiae (brewer's yeast) / References: UniProt: P10964, DNA-directed RNA polymerase
#2: Protein DNA-directed RNA polymerase I subunit RPA135 / DNA-directed RNA polymerase I 135 kDa polypeptide / A135 / DNA-directed RNA polymerase I ...DNA-directed RNA polymerase I 135 kDa polypeptide / A135 / DNA-directed RNA polymerase I polypeptide 2 / RNA polymerase I subunit 2


Mass: 135910.328 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae (brewer's yeast) / References: UniProt: P22138, DNA-directed RNA polymerase
#4: Protein DNA-directed RNA polymerase I subunit RPA14 / A14 / DNA-directed RNA polymerase I 14 kDa polypeptide


Mass: 14599.128 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae (brewer's yeast) / References: UniProt: P50106
#7: Protein DNA-directed RNA polymerase I subunit RPA43 / A43 / DNA-directed DNA-dependent RNA polymerase 36 kDa polypeptide


Mass: 36264.852 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae (brewer's yeast) / References: UniProt: P46669
#9: Protein DNA-directed RNA polymerase I subunit RPA12 / A12 / A12.2 / DNA-directed RNA polymerase I 13.7 kDa polypeptide


Mass: 13676.566 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae (brewer's yeast) / References: UniProt: P32529
#13: Protein DNA-directed RNA polymerase I subunit RPA49 / A49 / DNA-directed RNA polymerase I 49 kDa polypeptide


Mass: 46721.707 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae (brewer's yeast) / References: UniProt: Q01080
#14: Protein DNA-directed RNA polymerase I subunit RPA34 / A34 / DNA-directed DNA-dependent RNA polymerase 34.5 kDa polypeptide / A34.5


Mass: 26933.518 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae (brewer's yeast) / References: UniProt: P47006

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

#3: Protein DNA-directed RNA polymerases I and III subunit RPAC1 / RNA polymerases I and III subunit AC1 / C37 / DNA-directed RNA polymerases I and III 40 kDa polypeptide / C40


Mass: 37732.613 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae (brewer's yeast) / References: UniProt: P07703
#11: Protein DNA-directed RNA polymerases I and III subunit RPAC2 / RNA polymerases I and III subunit AC2 / AC19 / DNA-directed RNA polymerases I and III 16 kDa ...RNA polymerases I and III subunit AC2 / AC19 / DNA-directed RNA polymerases I and III 16 kDa polypeptide / RPA19


Mass: 16167.860 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) Saccharomyces cerevisiae (brewer's yeast) / References: UniProt: P28000

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

#5: 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) / References: UniProt: P20434
#6: 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) / References: UniProt: P20435
#8: 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) / References: UniProt: P20436
#10: 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) / References: UniProt: P22139
#12: 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) / References: UniProt: P40422

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RNA polymerase I-specific transcription initiation factor ... , 4 types, 4 molecules OPQR

#15: Protein RNA polymerase I-specific transcription initiation factor RRN3


Mass: 72458.258 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (yeast)
Gene: RRN3, YKL125W / Production host: Escherichia coli (E. coli) / References: UniProt: P36070
#16: Protein RNA polymerase I-specific transcription initiation factor RRN6


Mass: 73523.516 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (yeast)
Gene: RRN6, YBL014C, YBL0311, YBL0312 / Production host: Escherichia coli (E. coli) / References: UniProt: P32786
#17: Protein RNA polymerase I-specific transcription initiation factor RRN7


Mass: 60435.195 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (yeast)
Gene: RRN7, YJL025W, J1273 / Production host: Escherichia coli (E. coli) / References: UniProt: P40992
#18: Protein RNA polymerase I-specific transcription initiation factor RRN11


Mass: 59334.262 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (yeast)
Gene: RRN11, YML043C, YM9827.09C / Production host: Escherichia coli (E. coli) / References: UniProt: Q04712

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DNA chain , 4 types, 4 molecules STUV

#19: DNA chain NTS-DNA (27-MER)


Mass: 8411.627 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) Synthetic construct (others)
#20: DNA chain TS-DNA (27-MER)


Mass: 8153.236 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) Synthetic construct (others)
#21: DNA chain DNA foreign


Mass: 3905.512 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) Synthetic construct (others)
#22: DNA chain DNA foreign


Mass: 3425.224 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) Synthetic construct (others)

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Non-polymers , 2 types, 8 molecules

#23: Chemical
ChemComp-ZN / ZINC ION


Mass: 65.409 Da / Num. of mol.: 7 / 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 / 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
1early intermediate RNA-Polymerase I Pre-initiation Complex - eiPICCOMPLEX#1-#220MULTIPLE SOURCES
2RNA polymeraseCOMPLEX#1-#141NATURAL
3transcription initiation factorCOMPLEX#15-#181RECOMBINANT
4DNACOMPLEX#19-#221RECOMBINANT
Molecular weightExperimental value: NO
Source (natural)
IDEntity assembly-IDOrganismNcbi tax-ID
12Saccharomyces cerevisiae (brewer's yeast)4932
23Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (yeast)559292
34Synthetic construct (others)32630
Source (recombinant)
IDEntity assembly-IDOrganismNcbi tax-ID
13Escherichia coli (E. coli)562
24Synthetic construct (others)32630
Buffer solutionpH: 7.8
Buffer componentFormula: KCl
SpecimenConc.: 0.1 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
Specimen supportGrid material: COPPER / Grid mesh size: 300 divisions/in. / Grid type: Quantifoil R2/1
VitrificationInstrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 277 K

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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 magnification: 105000 X / Nominal defocus max: 3500 nm / Nominal defocus min: 1500 nm / Cs: 0.01 mm
Specimen holderCryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER
Image recordingElectron dose: 1.4 e/Å2 / Detector mode: SUPER-RESOLUTION / Film or detector model: GATAN K2 SUMMIT (4k x 4k) / Num. of grids imaged: 1 / Num. of real images: 4088

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Processing

SoftwareName: PHENIX / Version: 1.14_3260: / Classification: refinement
EM software
IDNameVersionCategoryDetails
4RELIONCTF correction3
10RELIONinitial Euler assignment3
11RELIONfinal Euler assignment3
13RELION3.083D reconstruction
CTF correctionType: NONE
SymmetryPoint symmetry: C1 (asymmetric)
3D reconstructionResolution: 3.54 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 122099 / Num. of class averages: 1 / Symmetry type: POINT
RefinementStereochemistry target values: CDL v1.2
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.009351242
ELECTRON MICROSCOPYf_angle_d0.937969565
ELECTRON MICROSCOPYf_chiral_restr0.05817770
ELECTRON MICROSCOPYf_plane_restr0.00758639
ELECTRON MICROSCOPYf_dihedral_angle_d8.93930859

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