9GLC | pdb_00009glc

NONO/SFPQ filament: local refinement central units (strand 1)


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.30 Å
  • Aggregation State: FILAMENT 
  • Reconstruction Method: SINGLE PARTICLE 

Starting Model: experimental
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This is version 1.1 of the entry. See complete history


Literature

The gene-regulating proteins NONO and SFPQ assemble into ordered filaments.

Rasmussen, T.Kuspert, J.Schonemann, L.Geiger, D.Bottcher, B.

(2025) Commun Biol 9: 117-117

  • DOI: https://doi.org/10.1038/s42003-025-09396-8
  • Primary Citation of Related Structures:  
    9GLC, 9GLD, 9GNI

  • PubMed Abstract: 

    Proteins of the Drosophila behaviour/human splicing (DBHS) family are involved in many aspects of gene regulation and maintenance like transcription, splicing and DNA repair. DBHS proteins form obligate homo- and heterodimers through interactions within a globular domain and can further dynamically oligomerise through α-helical coiled-coils, which is crucial for many functions. While the atomic structures of the dimers are established, the arrangement in higher oligomers is unknown. Here we present the structure of a filamentous NONO/SFPQ heterooligomer resolved by cryo-EM. The filaments form a double helix which is stabilized by an interdigitating network of coiled-coil interactions.


  • Organizational Affiliation
    • University of Würzburg, Rudolf Virchow Centre, Würzburg, Germany.

Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Splicing factor proline/glutamine rich (polypyrimidine tract binding protein associated)703Cricetulus griseusMutation(s): 0 
UniProt
Find proteins for A0A8C2LX33 (Cricetulus griseus)
Explore A0A8C2LX33 
Go to UniProtKB:  A0A8C2LX33
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupA0A8C2LX33
Sequence Annotations
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
Non-POU domain containing octamer bindingB [auth BD],
D [auth BF],
F [auth AD],
J [auth CF]
472Cricetulus griseusMutation(s): 0 
UniProt
Find proteins for A0A8C2L8F1 (Cricetulus griseus)
Explore A0A8C2L8F1 
Go to UniProtKB:  A0A8C2L8F1
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupA0A8C2L8F1
Sequence Annotations
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.30 Å
  • Aggregation State: FILAMENT 
  • Reconstruction Method: SINGLE PARTICLE 
EM Software:
TaskSoftware PackageVersion
MODEL REFINEMENTPHENIX1.20.1_4487:

Structure Validation

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Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
German Research Foundation (DFG)Germany359471283
German Research Foundation (DFG)Germany456578072
German Research Foundation (DFG)Germany525040890

Revision History  (Full details and data files)

  • Version 1.0: 2025-09-10
    Type: Initial release
  • Version 1.1: 2026-03-11
    Changes: Data collection, Database references