5W0W

Crystal structure of Protein Phosphatase 2A bound to TIPRL

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.80 Å
  • R-Value Free: 0.246 
  • R-Value Work: 0.197 
  • R-Value Observed: 0.200 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history. 


Literature

Methylation-regulated decommissioning of multimeric PP2A complexes.

Wu, C.G., Zheng, A., Jiang, L., Rowse, M., Stanevich, V., Chen, H., Li, Y., Satyshur, K.A., Johnson, B., Gu, T.J., Liu, Z., Xing, Y.

(2017) Nat Commun 8: 2272-2272

  • DOI: 10.1038/s41467-017-02405-3
  • Primary Citation of Related Structures:  
    5W0W, 5W0X

  • PubMed Abstract: 

    • Dynamic assembly/disassembly of signaling complexes are crucial for cellular functions. Specialized latency and activation chaperones control the biogenesis of protein phosphatase 2A (PP2A) holoenzymes that contain a common scaffold and catalytic subunits and a variable regulatory subunit ...

    Dynamic assembly/disassembly of signaling complexes are crucial for cellular functions. Specialized latency and activation chaperones control the biogenesis of protein phosphatase 2A (PP2A) holoenzymes that contain a common scaffold and catalytic subunits and a variable regulatory subunit. Here we show that the butterfly-shaped TIPRL (TOR signaling pathway regulator) makes highly integrative multibranching contacts with the PP2A catalytic subunit, selective for the unmethylated tail and perturbing/inactivating the phosphatase active site. TIPRL also makes unusual wobble contacts with the scaffold subunit, allowing TIPRL, but not the overlapping regulatory subunits, to tolerate disease-associated PP2A mutations, resulting in reduced holoenzyme assembly and enhanced inactivation of mutant PP2A. Strikingly, TIPRL and the latency chaperone, α4, coordinate to disassemble active holoenzymes into latent PP2A, strictly controlled by methylation. Our study reveals a mechanism for methylation-responsive inactivation and holoenzyme disassembly, illustrating the complexity of regulation/signaling, dynamic complex disassembly, and disease mutations in cancer and intellectual disability.

    Organizational Affiliation: 

    Johnson & Johnson, Melvin, PA, 19355, USA. xing@oncology.wisc.edu.



Macromolecules
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(by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Serine/threonine-protein phosphatase 2A 65 kDa regulatory subunit A alpha isoformA, D, G, J585Homo sapiensMutation(s): 0 
Gene Names: PPP2R1A
Find proteins for P30153 (Homo sapiens)
Explore P30153 
Go to UniProtKB:  P30153
NIH Common Fund Data Resources
PHAROS:  P30153
GTEx:  ENSG00000105568
Protein Feature View
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  • Reference Sequence
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(by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
TIP41-like proteinB, E, H, K251Mus musculusMutation(s): 0 
Gene Names: Tiprl
Find proteins for Q8BH58 (Mus musculus)
Explore Q8BH58 
Go to UniProtKB:  Q8BH58
NIH Common Fund Data Resources
IMPC:  MGI:1915087
Protein Feature View
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  • Reference Sequence
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(by identity cutoff)  |  Structure
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
Serine/threonine-protein phosphatase 2A catalytic subunit alpha isoformC, F, I, L311Homo sapiensMutation(s): 0 
Gene Names: PPP2CA
EC: 3.1.3.16
Find proteins for P67775 (Homo sapiens)
Explore P67775 
Go to UniProtKB:  P67775
NIH Common Fund Data Resources
PHAROS:  P67775
GTEx:  ENSG00000113575
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
MN
Query on MN
Download Ideal Coordinates CCD File 
 M [auth C], N [auth F], O [auth I], P [auth L]MANGANESE (II) ION
Mn
WAEMQWOKJMHJLA-UHFFFAOYSA-N		 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MSE
Query on MSE		A, D, G, JL-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.80 Å
  • R-Value Free: 0.246 
  • R-Value Work: 0.197 
  • R-Value Observed: 0.200 
  • Space Group: P 32
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 150.983α = 90
b = 150.983β = 90
c = 285.498γ = 120
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata processing
Aimlessdata scaling
CRANKphasing
Cootmodel building
XDSdata reduction

Structure Validation

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Entry History & Funding Information

Deposition Data

Funding OrganizationLocationGrant Number
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)United StatesRO1 GM096060-01

Revision History  (Full details and data files)

  • Version 1.0: 2018-01-17
    Type: Initial release
  • Version 1.1: 2020-01-01
    Changes: Author supporting evidence