7BFP

Structure of the Integrator cleavage module with INTS4/9/11


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.56 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Structure of the catalytic core of the Integrator complex.

Pfleiderer, M.M.Galej, W.P.

(2021) Mol Cell 81: 1246

  • DOI: 10.1016/j.molcel.2021.01.005
  • Primary Citation of Related Structures:  
    7BFQ, 7BFP

  • PubMed Abstract: 
  • The Integrator is a specialized 3' end-processing complex involved in cleavage and transcription termination of a subset of nascent RNA polymerase II transcripts, including small nuclear RNAs (snRNAs). We provide evidence of the modular nature of the Integrator complex by biochemically characterizing its two subcomplexes, INTS5/8 and INTS10/13/14 ...

    The Integrator is a specialized 3' end-processing complex involved in cleavage and transcription termination of a subset of nascent RNA polymerase II transcripts, including small nuclear RNAs (snRNAs). We provide evidence of the modular nature of the Integrator complex by biochemically characterizing its two subcomplexes, INTS5/8 and INTS10/13/14. Using cryoelectron microscopy (cryo-EM), we determined a 3.5-Å-resolution structure of the INTS4/9/11 ternary complex, which constitutes Integrator's catalytic core. Our structure reveals the spatial organization of the catalytic nuclease INTS11, bound to its catalytically impaired homolog INTS9 via several interdependent interfaces. INTS4, a helical repeat protein, plays a key role in stabilizing nuclease domains and other components. In this assembly, all three proteins form a composite electropositive groove, suggesting a putative RNA binding path within the complex. Comparison with other 3' end-processing machineries points to distinct features and a unique architecture of the Integrator's catalytic module.


    Organizational Affiliation

    European Molecular Biology Laboratory, 71 Avenue des Martyrs, 38042 Grenoble, France. Electronic address: wgalej@embl.fr.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Integrator complex subunit 9A658Homo sapiensMutation(s): 0 
Gene Names: INTS9RC74
UniProt & NIH Common Fund Data Resources
Find proteins for Q9NV88 (Homo sapiens)
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Go to UniProtKB:  Q9NV88
PHAROS:  Q9NV88
Protein Feature View
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  • Reference Sequence
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Integrator complex subunit 4B [auth C]979Homo sapiensMutation(s): 0 
Gene Names: INTS4MSTP093
UniProt & NIH Common Fund Data Resources
Find proteins for Q96HW7 (Homo sapiens)
Explore Q96HW7 
Go to UniProtKB:  Q96HW7
PHAROS:  Q96HW7
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  • Reference Sequence
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
Integrator complex subunit 11C [auth B]645Homo sapiensMutation(s): 0 
Gene Names: INTS11CPSF3LRC68
EC: 3.1.27
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Find proteins for Q5TA45 (Homo sapiens)
Explore Q5TA45 
Go to UniProtKB:  Q5TA45
PHAROS:  Q5TA45
Protein Feature View
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  • Reference Sequence
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Entity ID: 4
MoleculeChainsSequence LengthOrganismDetailsImage
UnknownD [auth U]36Homo sapiensMutation(s): 0 
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.56 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2021-03-24
    Type: Initial release
  • Version 1.1: 2021-03-31
    Changes: Database references