1HF2

Crystal structure of the bacterial cell-division inhibitor MinC from T. maritima

• PDB DOI: https://doi.org/10.2210/pdb1HF2/pdb

• Classification: CELL DIVISION PROTEIN
• Organism(s): Thermotoga maritima
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2000-11-27 Released: 2001-05-30 
• Deposition Author(s): Cordell, S.C., Anderson, R.E., Lowe, J.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.20 Å
• R-Value Free: 0.300 
• R-Value Work: 0.237 
• R-Value Observed: 0.237 

Literature

Crystal Structure of the Bacterial Cell-Division Inhibitor Minc

Cordell, S.C., Anderson, R.E., Lowe, J.

(2001) EMBO J 20: 2454

• PubMed: 11350934 
• DOI: https://doi.org/10.1093/emboj/20.10.2454
• Primary Citation of Related Structures:  
  1HF2


• PubMed Abstract: 
  

  Bacterial cell division requires accurate selection of the middle of the cell, where the bacterial tubulin homologue FtsZ polymerizes into a ring structure. In Escherichia coli, site selection is dependent on MinC, MinD and MINE: MinC acts, with MinD, to inhibit division at sites other than the midcell by directly interacting with FTSZ: Here we report the crystal structure to 2.2 A of MinC from Thermotoga maritima. MinC consists of two domains separated by a short linker. The C-terminal domain is a right-handed beta-helix and is involved in dimer formation. The crystals contain two different MinC dimers, demonstrating flexibility in the linker region. The two-domain architecture and dimerization of MinC can be rationalized with a model of cell division inhibition. MinC does not act like SulA, which affects the GTPase activity of FtsZ, and the model can explain how MinC would select for the FtsZ polymer rather than the monomer.

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Organizational Affiliation: 

MRC Laboratory of Molecular Biology, Hills Road, Cambridge CB2 2QH, UK.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors and generated by PQS (software)

Biological Assembly 2  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 2 assigned by authors and generated by PQS (software)

Macromolecule Content

• Total Structure Weight: 91.03 kDa 
• Atom Count: 6,685 
• Modelled Residue Count: 794 
• Deposited Residue Count: 840 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
SEPTUM SITE-DETERMINING PROTEIN MINC	A, B, C, D	210	Thermotoga maritima	Mutation(s): 0  Gene Names: MINC
UniProt
Find proteins for Q9X0D7 (Thermotoga maritima (strain ATCC 43589 / DSM 3109 / JCM 10099 / NBRC 100826 / MSB8)) Explore Q9X0D7  Go to UniProtKB:  Q9X0D7

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.20 Å
• R-Value Free: 0.300 
• R-Value Work: 0.237 
• R-Value Observed: 0.237 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 51.58	α = 90
b = 106.09	β = 90
c = 162.53	γ = 90

Software Package:

Software Name	Purpose
CNS	refinement
MOSFLM	data reduction
SCALA	data scaling
SOLVE	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2001-05-30 
Deposition Author(s): Cordell, S.C., Anderson, R.E., Lowe, J.

Revision History  

• Version 1.0: 2001-05-30
  Type: Initial release
  
• Version 1.1: 2011-05-08
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 2.0: 2018-01-24
  Changes: Atomic model, Source and taxonomy
• Version 2.1: 2024-05-08
  Changes: Data collection, Database references, Other