3W61

MamM-CTD H285A


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.59 Å
  • R-Value Free: 0.212 
  • R-Value Work: 0.179 
  • R-Value Observed: 0.181 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Cation diffusion facilitators transport initiation and regulation is mediated by cation induced conformational changes of the cytoplasmic domain

Zeytuni, N.Uebe, R.Maes, M.Davidov, G.Baram, M.Raschdorf, O.Nadav-Tsubery, M.Kolusheva, S.Bitton, R.Goobes, G.Friedler, A.Miller, Y.Schuler, D.Zarivach, R.

(2014) PLoS One 9: e92141-e92141

  • DOI: 10.1371/journal.pone.0092141
  • Primary Citation of Related Structures:  
    3W60, 3W61, 3W5Y, 3W5Z, 3W62, 3W63, 3W64, 3W65, 3W66, 3W5X

  • PubMed Abstract: 
  • Cation diffusion facilitators (CDF) are part of a highly conserved protein family that maintains cellular divalent cation homeostasis in all domains of life. CDF's were shown to be involved in several human diseases, such as Type-II diabetes and neur ...

    Cation diffusion facilitators (CDF) are part of a highly conserved protein family that maintains cellular divalent cation homeostasis in all domains of life. CDF's were shown to be involved in several human diseases, such as Type-II diabetes and neurodegenerative diseases. In this work, we employed a multi-disciplinary approach to study the activation mechanism of the CDF protein family. For this we used MamM, one of the main ion transporters of magnetosomes--bacterial organelles that enable magnetotactic bacteria to orientate along geomagnetic fields. Our results reveal that the cytosolic domain of MamM forms a stable dimer that undergoes distinct conformational changes upon divalent cation binding. MamM conformational change is associated with three metal binding sites that were identified and characterized. Altogether, our results provide a novel auto-regulation mode of action model in which the cytosolic domain's conformational changes upon ligand binding allows the priming of the CDF into its transport mode.


    Organizational Affiliation

    Department of Life Sciences, Ben Gurion University of the Negev, Beer-Sheva, Israel; National Institute for Biotechnology in the Negev, Ben Gurion University of the Negev, Beer-Sheva, Israel.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Magnetosome protein MamMA108Magnetospirillum gryphiswaldense MSR-1Mutation(s): 1 
Gene Names: mamMmgI491MGR_4095MGMSRv2__2375
Find proteins for V6F235 (Magnetospirillum gryphiswaldense (strain DSM 6361 / JCM 21280 / NBRC 15271 / MSR-1))
Explore V6F235 
Go to UniProtKB:  V6F235
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download CCD File 
A
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
CME
Query on CME
AL-PEPTIDE LINKINGC5 H11 N O3 S2CYS
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.59 Å
  • R-Value Free: 0.212 
  • R-Value Work: 0.179 
  • R-Value Observed: 0.181 
  • Space Group: C 2 2 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 37.084α = 90
b = 95.078β = 90
c = 53.802γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
PHASERphasing
REFMACrefinement
PDB_EXTRACTdata extraction
HKL-2000data reduction

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2014-04-16
    Type: Initial release
  • Version 1.1: 2017-11-22
    Changes: Refinement description