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- PDB-8pmp: Structure of the human nuclear cap-binding complex bound to ARS2[... -
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Basic information
Entry | Database: PDB / ID: 8pmp | ||||||
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Title | Structure of the human nuclear cap-binding complex bound to ARS2[147-871] and m7GTP | ||||||
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![]() | RNA BINDING PROTEIN / Nuclear cap-binding complex / ARS2 / Pol II transcript metabolism | ||||||
Function / homology | ![]() mRNA cap binding complex binding / positive regulation of RNA binding / snRNA export from nucleus / nuclear cap binding complex / histone mRNA metabolic process / RNA cap binding complex / mRNA metabolic process / positive regulation of RNA export from nucleus / positive regulation of mRNA 3'-end processing / cap-dependent translational initiation ...mRNA cap binding complex binding / positive regulation of RNA binding / snRNA export from nucleus / nuclear cap binding complex / histone mRNA metabolic process / RNA cap binding complex / mRNA metabolic process / positive regulation of RNA export from nucleus / positive regulation of mRNA 3'-end processing / cap-dependent translational initiation / Processing of Intronless Pre-mRNAs / snRNA binding / RNA cap binding / neuronal stem cell population maintenance / alternative mRNA splicing, via spliceosome / miRNA-mediated post-transcriptional gene silencing / primary miRNA processing / SLBP independent Processing of Histone Pre-mRNAs / SLBP Dependent Processing of Replication-Dependent Histone Pre-mRNAs / regulation of mRNA processing / regulatory ncRNA-mediated post-transcriptional gene silencing / Transport of the SLBP independent Mature mRNA / Transport of the SLBP Dependant Mature mRNA / RNA 7-methylguanosine cap binding / response to arsenic-containing substance / mRNA 3'-end processing / Transport of Mature mRNA Derived from an Intronless Transcript / positive regulation of mRNA splicing, via spliceosome / mRNA 3'-end processing / mRNA cis splicing, via spliceosome / Transport of Mature mRNA derived from an Intron-Containing Transcript / RNA catabolic process / regulation of translational initiation / positive regulation of neurogenesis / RNA Polymerase II Transcription Termination / nuclear-transcribed mRNA catabolic process, nonsense-mediated decay / Abortive elongation of HIV-1 transcript in the absence of Tat / FGFR2 alternative splicing / Signaling by FGFR2 IIIa TM / Formation of the Early Elongation Complex / Formation of the HIV-1 Early Elongation Complex / mRNA Capping / spliceosomal complex assembly / mRNA Splicing - Minor Pathway / Processing of Capped Intron-Containing Pre-mRNA / RNA polymerase II transcribes snRNA genes / 7-methylguanosine mRNA capping / Nonsense Mediated Decay (NMD) independent of the Exon Junction Complex (EJC) / Formation of HIV-1 elongation complex containing HIV-1 Tat / mRNA export from nucleus / Formation of HIV elongation complex in the absence of HIV Tat / Nonsense Mediated Decay (NMD) enhanced by the Exon Junction Complex (EJC) / Formation of RNA Pol II elongation complex / RNA Polymerase II Pre-transcription Events / mRNA Splicing - Major Pathway / RNA splicing / positive regulation of transcription elongation by RNA polymerase II / mRNA transcription by RNA polymerase II / mRNA splicing, via spliceosome / Regulation of expression of SLITs and ROBOs / mRNA processing / snRNP Assembly / positive regulation of cell growth / protein-macromolecule adaptor activity / defense response to virus / molecular adaptor activity / nuclear body / ciliary basal body / ribonucleoprotein complex / mRNA binding / regulation of DNA-templated transcription / protein-containing complex / mitochondrion / DNA binding / RNA binding / nucleoplasm / nucleus / cytosol / cytoplasm Similarity search - Function | ||||||
Biological species | ![]() | ||||||
Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.43 Å | ||||||
![]() | Dubiez, E. / Pellegrini, E. / Foucher, A.E. / Cusack, S. / Kadlec, J. | ||||||
Funding support | ![]()
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![]() | ![]() Title: Structural basis for competitive binding of productive and degradative co-transcriptional effectors to the nuclear cap-binding complex. Authors: Etienne Dubiez / Erika Pellegrini / Maja Finderup Brask / William Garland / Anne-Emmanuelle Foucher / Karine Huard / Torben Heick Jensen / Stephen Cusack / Jan Kadlec / ![]() ![]() Abstract: The nuclear cap-binding complex (CBC) coordinates co-transcriptional maturation, transport, or degradation of nascent RNA polymerase II (Pol II) transcripts. CBC with its partner ARS2 forms mutually ...The nuclear cap-binding complex (CBC) coordinates co-transcriptional maturation, transport, or degradation of nascent RNA polymerase II (Pol II) transcripts. CBC with its partner ARS2 forms mutually exclusive complexes with diverse "effectors" that promote either productive or destructive outcomes. Combining AlphaFold predictions with structural and biochemical validation, we show how effectors NCBP3, NELF-E, ARS2, PHAX, and ZC3H18 form competing binary complexes with CBC and how PHAX, NCBP3, ZC3H18, and other effectors compete for binding to ARS2. In ternary CBC-ARS2 complexes with PHAX, NCBP3, or ZC3H18, ARS2 is responsible for the initial effector recruitment but inhibits their direct binding to the CBC. We show that in vivo ZC3H18 binding to both CBC and ARS2 is required for nuclear RNA degradation. We propose that recruitment of PHAX to CBC-ARS2 can lead, with appropriate cues, to competitive displacement of ARS2 and ZC3H18 from the CBC, thus promoting a productive rather than a degradative RNA fate. | ||||||
History |
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Structure visualization
Structure viewer | Molecule: ![]() ![]() |
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PDBx/mmCIF format | ![]() | 215.5 KB | Display | ![]() |
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PDB format | ![]() | 158.7 KB | Display | ![]() |
PDBx/mmJSON format | ![]() | Tree view | ![]() | |
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-Validation report
Summary document | ![]() | 1.4 MB | Display | ![]() |
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Full document | ![]() | 1.4 MB | Display | |
Data in XML | ![]() | 47.4 KB | Display | |
Data in CIF | ![]() | 67.4 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 17763MC ![]() 8by6C ![]() 8pntC M: map data used to model this data C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
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Assembly
Deposited unit | ![]()
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Components
#1: Protein | Mass: 89781.938 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Details: CBP80 construct has the N-terminal 20 residues (containing the NLS) deleted and replaced by a methionine Source: (gene. exp.) ![]() ![]() |
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#2: Protein | Mass: 18028.131 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Details: Additional GA at the N-terminus / Source: (gene. exp.) ![]() ![]() ![]() |
#3: Protein | Mass: 83061.391 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Details: ARS2 has N-terminal 147 residues deleted and replaced by a methionine Source: (gene. exp.) ![]() ![]() |
#4: Chemical | ChemComp-MGT / |
Has ligand of interest | Y |
-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
Component | Name: Structure of the human nuclear cap-binding complex bound to ARS2[147-871] and m7GTP Type: COMPLEX / Entity ID: #1-#3 / Source: RECOMBINANT |
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Source (natural) | Organism: ![]() |
Source (recombinant) | Organism: ![]() |
Buffer solution | pH: 8 |
Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
Vitrification | Cryogen name: ETHANE |
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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 defocus max: 2500 nm / Nominal defocus min: 700 nm |
Image recording | Electron dose: 40.13 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) |
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Processing
EM software | Name: PHENIX / Version: 1.20.1_4487: / Category: model fitting | ||||||||||||||||||||||||
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CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
3D reconstruction | Resolution: 3.43 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 84474 / Symmetry type: POINT | ||||||||||||||||||||||||
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