4HEB

The Crystal structure of Maf protein of Bacillus subtilis


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.26 Å
  • R-Value Free: 0.250 
  • R-Value Work: 0.215 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Biochemical and structural studies of conserved maf proteins revealed nucleotide pyrophosphatases with a preference for modified nucleotides.

Tchigvintsev, A.Tchigvintsev, D.Flick, R.Popovic, A.Dong, A.Xu, X.Brown, G.Lu, W.Wu, H.Cui, H.Dombrowski, L.Joo, J.C.Beloglazova, N.Min, J.Savchenko, A.Caudy, A.A.Rabinowitz, J.D.Murzin, A.G.Yakunin, A.F.

(2013) Chem.Biol. 20: 1386-1398

  • DOI: 10.1016/j.chembiol.2013.09.011
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Maf (for multicopy associated filamentation) proteins represent a large family of conserved proteins implicated in cell division arrest but whose biochemical activity remains unknown. Here, we show that the prokaryotic and eukaryotic Maf proteins exh ...

    Maf (for multicopy associated filamentation) proteins represent a large family of conserved proteins implicated in cell division arrest but whose biochemical activity remains unknown. Here, we show that the prokaryotic and eukaryotic Maf proteins exhibit nucleotide pyrophosphatase activity against 5-methyl-UTP, pseudo-UTP, 5-methyl-CTP, and 7-methyl-GTP, which represent the most abundant modified bases in all organisms, as well as against canonical nucleotides dTTP, UTP, and CTP. Overexpression of the Maf protein YhdE in E. coli cells increased intracellular levels of dTMP and UMP, confirming that dTTP and UTP are the in vivo substrates of this protein. Crystal structures and site-directed mutagenesis of Maf proteins revealed the determinants of their activity and substrate specificity. Thus, pyrophosphatase activity of Maf proteins toward canonical and modified nucleotides might provide the molecular mechanism for a dual role of these proteins in cell division arrest and house cleaning.


    Organizational Affiliation

    Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, ON M5S 3E5, Canada.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Septum formation protein Maf
A, B
210Bacillus subtilis (strain 168)Mutation(s): 0 
Gene Names: maf
EC: 3.6.1.9
Find proteins for Q02169 (Bacillus subtilis (strain 168))
Go to UniProtKB:  Q02169
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
UNX
Query on UNX

Download SDF File 
Download CCD File 
A, B
UNKNOWN ATOM OR ION
X
*
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.26 Å
  • R-Value Free: 0.250 
  • R-Value Work: 0.215 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 61.550α = 90.00
b = 85.950β = 90.00
c = 95.030γ = 90.00
Software Package:
Software NamePurpose
REFMACrefinement
BUSTERrefinement
PDB_EXTRACTdata extraction
HKL-2000data scaling
MOLREPphasing
Cootmodel building

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2012-10-24
    Type: Initial release
  • Version 1.1: 2013-11-20
    Type: Database references
  • Version 1.2: 2013-12-11
    Type: Database references