6RS2

Structure of the Bateman module of human CNNM4.


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.69 Å
  • R-Value Free: 0.276 
  • R-Value Work: 0.229 
  • R-Value Observed: 0.234 

Starting Model: experimental
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wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history

Re-refinement Note

This entry reflects an alternative modeling of the original data in: 4IY3


Literature

Structural Insights into the Intracellular Region of the Human Magnesium Transport Mediator CNNM4.

Gimenez-Mascarell, P.Oyenarte, I.Gonzalez-Recio, I.Fernandez-Rodriguez, C.Corral-Rodriguez, M.A.Campos-Zarraga, I.Simon, J.Kostantin, E.Hardy, S.Diaz Quintana, A.Zubillaga Lizeaga, M.Merino, N.Diercks, T.Blanco, F.J.Diaz Moreno, I.Martinez-Chantar, M.L.Tremblay, M.L.Muller, D.Siliqi, D.Martinez-Cruz, L.A.

(2019) Int J Mol Sci 20

  • DOI: https://doi.org/10.3390/ijms20246279
  • Primary Citation of Related Structures:  
    6G52, 6RS2

  • PubMed Abstract: 

    The four member family of "Cyclin and Cystathionine β-synthase (CBS) domain divalent metal cation transport mediators", CNNMs, are the least-studied mammalian magnesium transport mediators. CNNM4 is abundant in the brain and the intestinal tract, and its abnormal activity causes Jalili Syndrome. Recent findings show that suppression of CNNM4 in mice promotes malignant progression of intestinal polyps and is linked to infertility. The association of CNNM4 with phosphatases of the regenerating liver, PRLs, abrogates its Mg 2+ -efflux capacity, thus resulting in an increased intracellular Mg 2+ concentration that favors tumor growth. Here we present the crystal structures of the two independent intracellular domains of human CNNM4, i.e., the Bateman module and the cyclic nucleotide binding-like domain (cNMP). We also derive a model structure for the full intracellular region in the absence and presence of MgATP and the oncogenic interacting partner, PRL-1. We find that only the Bateman module interacts with ATP and Mg 2+ , at non-overlapping sites facilitating their positive cooperativity. Furthermore, both domains dimerize autonomously, where the cNMP domain dimer forms a rigid cleft to restrict the Mg 2+ induced sliding of the inserting CBS1 motives of the Bateman module, from a twisted to a flat disk shaped dimer.


  • Organizational Affiliation

    Liver Disease Laboratory, Center for Cooperative Research in Biosciences (CIC bioGUNE), Bizkaia Science and Technology Park Bld 801A, 48160 Derio, Spain.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Metal transporter CNNM4A [auth B],
B [auth C],
C [auth D],
D [auth A]
153Homo sapiensMutation(s): 0 
Gene Names: CNNM4ACDP4KIAA1592
UniProt & NIH Common Fund Data Resources
Find proteins for Q6P4Q7 (Homo sapiens)
Explore Q6P4Q7 
Go to UniProtKB:  Q6P4Q7
PHAROS:  Q6P4Q7
GTEx:  ENSG00000158158 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ6P4Q7
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.69 Å
  • R-Value Free: 0.276 
  • R-Value Work: 0.229 
  • R-Value Observed: 0.234 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 91.392α = 90
b = 141.363β = 90
c = 87.898γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata reduction
XSCALEdata scaling
PHENIXphasing
Cootmodel building

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Spanish Ministry of Economy and CompetitivenessSpainBFU2016-77408-R
Spanish Ministry of Economy and CompetitivenessSpainBFU2013-47531-R
Spanish Ministry of Economy and CompetitivenessSpainCSD2008-00005
Spanish Ministry of Economy and CompetitivenessSpainSEV-2016-0644
Spanish Ministry of Economy and CompetitivenessSpainBES-2014-068464

Revision History  (Full details and data files)

  • Version 1.0: 2020-07-15
    Type: Initial release
  • Version 1.1: 2021-01-27
    Changes: Database references
  • Version 1.2: 2024-01-24
    Changes: Data collection, Database references, Refinement description