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Open data
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Basic information
Entry | Database: PDB / ID: 5iyd | |||||||||||||||
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Title | Human core-PIC in the initial transcribing state (no IIS) | |||||||||||||||
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![]() | TRANSCRIPTION / TRANSFERASE/DNA/RNA / initiation / RNA polymerase II / human / TRANSFERASE-DNA-RNA complex | |||||||||||||||
Function / homology | ![]() LRR domain binding / microfibril binding / RNA Polymerase III Chain Elongation / positive regulation of core promoter binding / RNA polymerase II core complex assembly / RNA Polymerase III Transcription Termination / transcription factor TFIIE complex / RNA polymerase transcription factor SL1 complex / meiotic sister chromatid cohesion / phosphatase activator activity ...LRR domain binding / microfibril binding / RNA Polymerase III Chain Elongation / positive regulation of core promoter binding / RNA polymerase II core complex assembly / RNA Polymerase III Transcription Termination / transcription factor TFIIE complex / RNA polymerase transcription factor SL1 complex / meiotic sister chromatid cohesion / phosphatase activator activity / regulation of transcription by RNA polymerase I / RNA polymerase III general transcription initiation factor activity / TFIIF-class transcription factor complex binding / transcriptional start site selection at RNA polymerase II promoter / RNA polymerase I core promoter sequence-specific DNA binding / RPAP3/R2TP/prefoldin-like complex / transcription factor TFIIF complex / RNA Polymerase III Transcription Initiation From Type 1 Promoter / RNA Polymerase III Transcription Initiation From Type 2 Promoter / RNA Polymerase III Transcription Initiation From Type 3 Promoter / transcription factor TFIIA complex / Cytosolic sensors of pathogen-associated DNA / RNA Polymerase III Abortive And Retractive Initiation / female germ cell nucleus / male pronucleus / female pronucleus / germinal vesicle / RNA polymerase II general transcription initiation factor binding / nuclear thyroid hormone receptor binding / Abortive elongation of HIV-1 transcript in the absence of Tat / FGFR2 alternative splicing / RNA Polymerase I Transcription Termination / transcription preinitiation complex / MicroRNA (miRNA) biogenesis / Viral Messenger RNA Synthesis / Signaling by FGFR2 IIIa TM / protein acetylation / cell division site / RNA polymerase II general transcription initiation factor activity / transcription factor TFIID complex / RNA Pol II CTD phosphorylation and interaction with CE during HIV infection / RNA Pol II CTD phosphorylation and interaction with CE / positive regulation of nuclear-transcribed mRNA poly(A) tail shortening / Formation of the Early Elongation Complex / Formation of the HIV-1 Early Elongation Complex / mRNA Capping / acetyltransferase activity / 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 / mRNA Splicing - Minor Pathway / PIWI-interacting RNA (piRNA) biogenesis / aryl hydrocarbon receptor binding / RNA polymerase II complex binding / viral transcription / TFIIB-class transcription factor binding / maintenance of transcriptional fidelity during transcription elongation by RNA polymerase II / RNA Polymerase I Transcription Initiation / nuclear-transcribed mRNA catabolic process / Pausing and recovery of Tat-mediated HIV elongation / Tat-mediated HIV elongation arrest and recovery / Processing of Capped Intron-Containing Pre-mRNA / positive regulation of translational initiation / RNA polymerase II transcribes snRNA genes / HIV elongation arrest and recovery / Pausing and recovery of HIV elongation / positive regulation of transcription initiation by RNA polymerase II / Tat-mediated elongation of the HIV-1 transcript / Formation of HIV-1 elongation complex containing HIV-1 Tat / transcription by RNA polymerase III / transcription by RNA polymerase I / RNA polymerase I complex / transcription elongation by RNA polymerase I / Formation of HIV elongation complex in the absence of HIV Tat / RNA polymerase III complex / transcription-coupled nucleotide-excision repair / RNA polymerase II core promoter sequence-specific DNA binding / histone H4K16 acetyltransferase activity / core promoter sequence-specific DNA binding / histone H3K56 acetyltransferase activity / histone H3K23 acetyltransferase activity / histone H2AK5 acetyltransferase activity / histone H2AK9 acetyltransferase activity / histone H2BK5 acetyltransferase activity / histone H2BK12 acetyltransferase activity / histone H3K4 acetyltransferase activity / histone H3K27 acetyltransferase activity / histone H3K36 acetyltransferase activity / histone H3K122 acetyltransferase activity / histone H3K18 acetyltransferase activity / histone H3K9 acetyltransferase activity / histone H3K14 acetyltransferase activity / histone H4K5 acetyltransferase activity / histone H4K8 acetyltransferase activity / histone H4K12 acetyltransferase activity / RNA polymerase II, core complex Similarity search - Function | |||||||||||||||
Biological species | ![]() | |||||||||||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.9 Å | |||||||||||||||
![]() | He, Y. / Yan, C. / Fang, J. / Inouye, C. / Tjian, R. / Ivanov, I. / Nogales, E. | |||||||||||||||
Funding support | ![]()
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![]() | ![]() Title: Near-atomic resolution visualization of human transcription promoter opening. Authors: Yuan He / Chunli Yan / Jie Fang / Carla Inouye / Robert Tjian / Ivaylo Ivanov / Eva Nogales / ![]() Abstract: In eukaryotic transcription initiation, a large multi-subunit pre-initiation complex (PIC) that assembles at the core promoter is required for the opening of the duplex DNA and identification of the ...In eukaryotic transcription initiation, a large multi-subunit pre-initiation complex (PIC) that assembles at the core promoter is required for the opening of the duplex DNA and identification of the start site for transcription by RNA polymerase II. Here we use cryo-electron microscropy (cryo-EM) to determine near-atomic resolution structures of the human PIC in a closed state (engaged with duplex DNA), an open state (engaged with a transcription bubble), and an initially transcribing complex (containing six base pairs of DNA-RNA hybrid). Our studies provide structures for previously uncharacterized components of the PIC, such as TFIIE and TFIIH, and segments of TFIIA, TFIIB and TFIIF. Comparison of the different structures reveals the sequential conformational changes that accompany the transition from each state to the next throughout the transcription initiation process. This analysis illustrates the key role of TFIIB in transcription bubble stabilization and provides strong structural support for a translocase activity of XPB. | |||||||||||||||
History |
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Structure visualization
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Structure viewer | Molecule: ![]() ![]() |
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Downloads & links
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Download
PDBx/mmCIF format | ![]() | 1 MB | Display | ![]() |
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PDB format | ![]() | 794.2 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
Others | ![]() |
-Validation report
Summary document | ![]() | 951.9 KB | Display | ![]() |
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Full document | ![]() | 1.1 MB | Display | |
Data in XML | ![]() | 167.3 KB | Display | |
Data in CIF | ![]() | 254.3 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 8138MC ![]() 8131C ![]() 8132C ![]() 8133C ![]() 8134C ![]() 8135C ![]() 8136C ![]() 8137C ![]() 5ivwC ![]() 5iy6C ![]() 5iy7C ![]() 5iy8C ![]() 5iy9C ![]() 5iyaC ![]() 5iybC ![]() 5iycC M: map data used to model this data C: citing same article ( |
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Similar structure data |
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Links
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Assembly
Deposited unit | ![]()
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1 |
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Components
-DNA-directed RNA polymerase II subunit ... , 12 types, 12 molecules ABCDEFGHIJKL
#1: Protein | Mass: 217420.047 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() References: UniProt: P24928, DNA-directed RNA polymerase, RNA-directed RNA polymerase |
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#2: Protein | Mass: 134071.453 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
#3: Protein | Mass: 31478.148 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
#4: Protein | Mass: 16331.255 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
#5: Protein | Mass: 24584.223 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
#6: Protein | Mass: 14491.026 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
#7: Protein | Mass: 19314.283 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
#8: Protein | Mass: 17162.273 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
#9: Protein | Mass: 14541.221 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
#10: Protein | Mass: 7655.123 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
#11: Protein | Mass: 13310.284 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
#12: Protein | Mass: 7018.244 Da / Num. of mol.: 1 / Source method: isolated from a natural source / Source: (natural) ![]() |
-Transcription initiation factor ... , 4 types, 4 molecules MNOR
#13: Protein | Mass: 34877.949 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
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#14: Protein | Mass: 41544.551 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
#15: Protein | Mass: 12469.091 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
#18: Protein | Mass: 33106.824 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
-Protein , 2 types, 2 molecules PQ
#16: Protein | Mass: 37729.938 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
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#17: Protein | Mass: 49516.094 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
-General transcription factor IIF subunit ... , 2 types, 2 molecules ST
#19: Protein | Mass: 58343.578 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
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#20: Protein | Mass: 28427.309 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) ![]() ![]() ![]() |
-DNA chain , 2 types, 2 molecules XY
#21: DNA chain | Mass: 24800.826 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) ![]() |
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#22: DNA chain | Mass: 24513.598 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) ![]() |
-RNA chain , 1 types, 1 molecules Z
#23: RNA chain | Mass: 1891.189 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) ![]() |
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-Non-polymers , 2 types, 13 molecules 


#24: Chemical | #25: Chemical | ChemComp-ZN / |
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-Details
Has protein modification | Y |
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-Experimental details
-Experiment
Experiment | Method: ELECTRON MICROSCOPY |
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EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
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Sample preparation
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Molecular weight |
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Source (natural) |
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Buffer solution | pH: 7.9 | ||||||||||||||||||||||||||||||
Specimen | Conc.: 0.3 mg/ml / Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES | ||||||||||||||||||||||||||||||
Vitrification | Instrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % Details: Blot for 4 seconds before plunging into liquid ethane (FEI VITROBOT MARK IV). |
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Electron microscopy imaging
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Microscopy | Model: FEI TITAN KRIOS |
Electron gun | Electron source: ![]() |
Electron lens | Mode: BRIGHT FIELD / Nominal magnification: 27500 X / Nominal defocus max: 4000 nm / Nominal defocus min: 2000 nm / Cs: 2.7 mm |
Specimen holder | Specimen holder model: GATAN 626 SINGLE TILT LIQUID NITROGEN CRYO TRANSFER HOLDER |
Image recording | Electron dose: 42 e/Å2 / Detector mode: COUNTING / Film or detector model: GATAN K2 SUMMIT (4k x 4k) |
Image scans | Movie frames/image: 30 |
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Processing
EM software | Name: RELION / Version: 1.4beta / Category: 3D reconstruction |
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION |
3D reconstruction | Resolution: 3.9 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 99929 / Symmetry type: POINT |
Atomic model building | Protocol: FLEXIBLE FIT |