3W8G

MamM V260R


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.05 Å
  • R-Value Free: 0.260 
  • R-Value Work: 0.184 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Bacterial Magnetosome Biomineralization - A Novel Platform to Study Molecular Mechanisms of Human CDF-Related Type-II Diabetes

Zeytuni, N.Uebe, R.Maes, M.Davidov, G.Baram, M.Raschdorf, O.Friedler, A.Miller, Y.Schuler, D.Zarivach, R.

(2014) Plos One 9: e97154-e97154

  • DOI: 10.1371/journal.pone.0097154

  • PubMed Abstract: 
  • Cation diffusion facilitators (CDF) are part of a highly conserved protein family that maintains cellular divalent cation homeostasis in all organisms. CDFs were found to be involved in numerous human health conditions, such as Type-II diabetes and n ...

    Cation diffusion facilitators (CDF) are part of a highly conserved protein family that maintains cellular divalent cation homeostasis in all organisms. CDFs were found to be involved in numerous human health conditions, such as Type-II diabetes and neurodegenerative diseases. In this work, we established the magnetite biomineralizing alphaproteobacterium Magnetospirillum gryphiswaldense as an effective model system to study CDF-related Type-II diabetes. Here, we introduced two ZnT-8 Type-II diabetes-related mutations into the M. gryphiswaldense MamM protein, a magnetosome-associated CDF transporter essential for magnetite biomineralization within magnetosome vesicles. The mutations' effects on magnetite biomineralization and iron transport within magnetosome vesicles were tested in vivo. Additionally, by combining several in vitro and in silico methodologies we provide new mechanistic insights for ZnT-8 polymorphism at position 325, located at a crucial dimerization site important for CDF regulation and activation. Overall, by following differentiated, easily measurable, magnetism-related phenotypes we can utilize magnetotactic bacteria for future research of CDF-related human diseases.


    Organizational Affiliation

    Department of Life Sciences, Ben Gurion University of the Negev, Beer-Sheva, Israel; The National Institute for Biotechnology in the Negev, Ben Gurion University of the Negev, Beer-Sheva, Israel.,Ludwig Maximillian University of Munich, Dept. Biology I, Martinsried, Germany.,Institute of Chemistry, The Hebrew University of Jerusalem, Givat Ram, Jerusalem, Israel.,Department of Chemistry, Ben Gurion University of the Negev, Beer-Sheva, Israel; Ilse Katz Institute for Nanoscale Science and Technology, Ben-Gurion University of the Negev, Beer-Sheva, Israel.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Magnetosome protein MamM
A, B
108Magnetospirillum gryphiswaldense (strain DSM 6361 / JCM 21280 / NBRC 15271 / MSR-1)Mutation(s): 1 
Gene Names: mamM
Find proteins for V6F235 (Magnetospirillum gryphiswaldense (strain DSM 6361 / JCM 21280 / NBRC 15271 / MSR-1))
Go to UniProtKB:  V6F235
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.05 Å
  • R-Value Free: 0.260 
  • R-Value Work: 0.184 
  • Space Group: P 61
Unit Cell:
Length (Å)Angle (°)
a = 68.481α = 90.00
b = 68.481β = 90.00
c = 56.395γ = 120.00
Software Package:
Software NamePurpose
REFMACrefinement
SCALEPACKdata scaling
DENZOdata reduction
PDB_EXTRACTdata extraction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2014-06-11
    Type: Initial release
  • Version 1.1: 2017-11-22
    Type: Refinement description