5MMZ

Structure of PRL-1 in complex with the Bateman domain of CNNM2


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.252 
  • R-Value Work: 0.225 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structural Basis of the Oncogenic Interaction of Phosphatase PRL-1 with the Magnesium Transporter CNNM2.

Gimenez-Mascarell, P.Oyenarte, I.Hardy, S.Breiderhoff, T.Stuiver, M.Kostantin, E.Diercks, T.Pey, A.L.Ereno-Orbea, J.Martinez-Chantar, M.L.Khalaf-Nazzal, R.Claverie-Martin, F.Muller, D.Tremblay, M.L.Martinez-Cruz, L.A.

(2017) J. Biol. Chem. 292: 786-801

  • DOI: 10.1074/jbc.M116.759944
  • Primary Citation of Related Structures:  
  • Also Cited By: 6G52

  • PubMed Abstract: 
  • Phosphatases of regenerating liver (PRLs), the most oncogenic of all protein-tyrosine phosphatases (PTPs), play a critical role in metastatic progression of cancers. Recent findings established a new paradigm by uncovering that their association with ...

    Phosphatases of regenerating liver (PRLs), the most oncogenic of all protein-tyrosine phosphatases (PTPs), play a critical role in metastatic progression of cancers. Recent findings established a new paradigm by uncovering that their association with magnesium transporters of the cyclin M (CNNM) family causes a rise in intracellular magnesium levels that promote oncogenic transformation. Recently, however, essential roles for regulation of the circadian rhythm and reproduction of the CNNM family have been highlighted. Here, we describe the crystal structure of PRL-1 in complex with the Bateman module of CNNM2 (CNNM2BAT), which consists of two cystathionine β-synthase (CBS) domains (IPR000664) and represents an intracellular regulatory module of the transporter. The structure reveals a heterotetrameric association, consisting of a disc-like homodimer of CNNM2BAT bound to two independent PRL-1 molecules, each one located at opposite tips of the disc. The structure highlights the key role played by Asp-558 at the extended loop of the CBS2 motif of CNNM2 in maintaining the association between the two proteins and proves that the interaction between CNNM2 and PRL-1 occurs via the catalytic domain of the phosphatase. Our data shed new light on the structural basis underlying the interaction between PRL phosphatases and CNNM transporters and provides a hypothesis about the molecular mechanism by which PRL-1, upon binding to CNNM2, might increase the intracellular concentration of Mg2+ thereby contributing to tumor progression and metastasis. The availability of this structure sets the basis for the rational design of compounds modulating PRL-1 and CNNM2 activities.


    Organizational Affiliation

    From the Structural Biology Unit, Center for Cooperative Research in Biosciences (CIC bioGUNE), Technology Park of Bizkaia, 48160 Derio, Bizkaia, Spain.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Metal transporter CNNM2
A
156Mus musculusMutation(s): 0 
Gene Names: Cnnm2 (Acdp2)
Find proteins for Q3TWN3 (Mus musculus)
Go to UniProtKB:  Q3TWN3
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Protein tyrosine phosphatase type IVA 1
B
173Mus musculusMutation(s): 0 
Gene Names: Ptp4a1 (Prl1)
EC: 3.1.3.48
Find proteins for Q63739 (Mus musculus)
Go to UniProtKB:  Q63739
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.252 
  • R-Value Work: 0.225 
  • Space Group: I 2 2 2
Unit Cell:
Length (Å)Angle (°)
a = 52.730α = 90.00
b = 128.478β = 90.00
c = 153.909γ = 90.00
Software Package:
Software NamePurpose
Cootmodel building
Aimlessdata scaling
PHASERphasing
PHENIXrefinement
XDSdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Revision History 

  • Version 1.0: 2016-12-21
    Type: Initial release
  • Version 1.1: 2017-02-01
    Type: Database references
  • Version 1.2: 2017-12-20
    Type: Structure summary