Biological Assembly 1  

 3D View: Structure | 1D-3D View | Electron Density | Validation Report | Ligand Interaction

Global Symmetry: Cyclic - C2  (3D View)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors.

Biological Assembly 2  

 3D View: Structure | 1D-3D View | Electron Density | Validation Report | Ligand Interaction

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 2 generated by PISA (software)

Biological Assembly 3  

 3D View: Structure | 1D-3D View | Electron Density | Validation Report | Ligand Interaction

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 3 generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 58.06 kDa 
• Atom Count: 4241 
• Modelled Residue Count: 514 
• Deposited Residue Count: 520 
• Unique protein chains: 1

3Q9L

The structure of the dimeric E.coli MinD-ATP complex

• PDB DOI: 10.2210/pdb3Q9L/pdb

• Classification: CELL CYCLE, HYDROLASE
• Organism(s): Escherichia coli K-12
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2011-01-08 Released: 2011-01-26 
• Deposition Author(s): Wu, W., Park, K.-T., Lutkenhaus, J., Holyoak, T.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.34 Å
• R-Value Free: 0.307 
• R-Value Work: 0.266 
• R-Value Observed: 0.268 

Literature

Determination of the structure of the MinD-ATP complex reveals the orientation of MinD on the membrane and the relative location of the binding sites for MinE and MinC.

Wu, W., Park, K.T., Holyoak, T., Lutkenhaus, J.

(2011) Mol Microbiol 79: 1515-1528

• PubMed: 21231967 
• DOI: 10.1111/j.1365-2958.2010.07536.x
• Primary Citation of Related Structures:  
  3Q9L


• PubMed Abstract: 
  

The three Min proteins spatially regulate Z ring positioning in Escherichia coli and are dynamically associated with the membrane. MinD binds to vesicles in the presence of ATP and can recruit MinC or MinE. Biochemical and genetic evidence indicate the binding sites for these two proteins on MinD overlap. Here we solved the structure of a hydrolytic-deficient mutant of MinD truncated for the C-terminal amphipathic helix involved in binding to the membrane. The structure solved in the presence of ATP is a dimer and reveals the face of MinD abutting the membrane. Using a combination of random and extensive site-directed mutagenesis additional residues important for MinE and MinC binding were identified. The location of these residues on the MinD structure confirms that the binding sites overlap and reveals that the binding sites are at the dimer interface and exposed to the cytosol. The location of the binding sites at the dimer interface offers a simple explanation for the ATP dependence of MinC and MinE binding to MinD.

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Organizational Affiliation: 

Department of Microbiology, Molecular Genetics and Immunology, University of Kansas Medical Center, Kansas City, KS 66160, USA.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Septum site-determining protein minD	A, B	260	Escherichia coli K-12	Mutation(s): 1  Gene Names: minD, b1175, JW1164
UniProt
Find proteins for P0AEZ3 (Escherichia coli (strain K12)) Explore P0AEZ3  Go to UniProtKB:  P0AEZ3

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
ATP	D [auth A], F [auth B]	ADENOSINE-5'-TRIPHOSPHATE C10 H16 N5 O13 P3 ZKHQWZAMYRWXGA-KQYNXXCUSA-N
MG	C [auth A], E [auth B]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.34 Å
• R-Value Free: 0.307 
• R-Value Work: 0.266 
• R-Value Observed: 0.268 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 83.664	α = 90
b = 86.595	β = 90
c = 110.714	γ = 90

Software Package:

Software Name	Purpose
SCALEPACK	data scaling
SOLVE	phasing
RESOLVE	phasing
PHENIX	refinement
PDB_EXTRACT	data extraction
HKL-2000	data collection
DENZO	data reduction

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2011-01-08 
• Released Date: 2011-01-26 
Deposition Author(s): Wu, W., Park, K.-T., Lutkenhaus, J., Holyoak, T.

Revision History  

• Version 1.0: 2011-01-26
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2017-11-08
  Changes: Refinement description