7LQT

Solution NMR structure of the PNUTS amino-terminal Domain fused to Myc Homology Box 0


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation   3D Report Full Report


This is version 1.4 of the entry. See complete history


Literature

The MYC oncoprotein directly interacts with its chromatin cofactor PNUTS to recruit PP1 phosphatase.

Wei, Y.Redel, C.Ahlner, A.Lemak, A.Johansson-Akhe, I.Houliston, S.Kenney, T.M.G.Tamachi, A.Morad, V.Duan, S.Andrews, D.W.Wallner, B.Sunnerhagen, M.Arrowsmith, C.H.Penn, L.Z.

(2022) Nucleic Acids Res 50: 3505-3522

  • DOI: https://doi.org/10.1093/nar/gkac138
  • Primary Citation of Related Structures:  
    6VTI, 7LQT

  • PubMed Abstract: 

    Despite MYC dysregulation in most human cancers, strategies to target this potent oncogenic driver remain an urgent unmet need. Recent evidence shows the PP1 phosphatase and its regulatory subunit PNUTS control MYC phosphorylation, chromatin occupancy, and stability, however the molecular basis remains unclear. Here we demonstrate that MYC interacts directly with PNUTS through the MYC homology Box 0 (MB0), a highly conserved region recently shown to be important for MYC oncogenic activity. By NMR we identified a distinct peptide motif within MB0 that interacts with PNUTS residues 1-148, a functional unit, here termed PNUTS amino-terminal domain (PAD). Using NMR spectroscopy we determined the solution structure of PAD, and characterised its MYC-binding patch. Point mutations of residues at the MYC-PNUTS interface significantly weaken their interaction both in vitro and in vivo, leading to elevated MYC phosphorylation. These data demonstrate that the MB0 region of MYC directly interacts with the PAD of PNUTS, which provides new insight into the control mechanisms of MYC as a regulator of gene transcription and a pervasive cancer driver.


  • Organizational Affiliation

    Princess Margaret Cancer Centre, University Health Network, 101 College St, Toronto, ON M5G 0A3, Canada.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Serine/threonine-protein phosphatase 1 regulatory subunit 10,Myc proto-oncogene protein fusion174Rattus norvegicusMutation(s): 0 
Gene Names: Ppp1r10Cat53PnutsMyc
UniProt
Find proteins for P09416 (Rattus norvegicus)
Explore P09416 
Go to UniProtKB:  P09416
Find proteins for O55000 (Rattus norvegicus)
Explore O55000 
Go to UniProtKB:  O55000
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupsO55000P09416
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2021-03-03
    Type: Initial release
  • Version 1.1: 2022-03-23
    Changes: Database references
  • Version 1.2: 2022-04-20
    Changes: Database references
  • Version 1.3: 2023-06-14
    Changes: Other
  • Version 1.4: 2024-05-15
    Changes: Data collection, Database references