3QY6

Crystal structures of YwqE from Bacillus subtilis and CpsB from Streptococcus pneumoniae, unique metal-dependent tyrosine phosphatases


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 Å
  • R-Value Free: 0.256 
  • R-Value Work: 0.216 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Crystal structures of YwqE from Bacillus subtilis and CpsB from Streptococcus pneumoniae, unique metal-dependent tyrosine phosphatases.

Kim, H.S.Lee, S.J.Yoon, H.J.An, D.R.Kim, D.J.Kim, S.J.Suh, S.W.

(2011) J.Struct.Biol. 175: 442-450

  • DOI: 10.1016/j.jsb.2011.05.007
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Unique metal-dependent protein tyrosine phosphatases that belong to the polymerase and histindinol phosphatase (PHP) family are present in Gram-positive bacteria. They are distinct from the Cys-based, low-molecular-weight phosphotyrosine protein phos ...

    Unique metal-dependent protein tyrosine phosphatases that belong to the polymerase and histindinol phosphatase (PHP) family are present in Gram-positive bacteria. They are distinct from the Cys-based, low-molecular-weight phosphotyrosine protein phosphatases (LMPTPs). Two representative members of the PHP family tyrosine phosphatases are YwqE from Bacillus subtilis and CpsB from Streptococcus pneumoniae. YwqE is involved in polysaccharide biosynthesis, bacterial DNA metabolism, and DNA damage response in B. subtilis. CpsB regulates capsular polysaccharide biosynthesis via tyrosine dephosphorylation of CpsD, its cognate tyrosine kinase, in S. pneumoniae. To gain insights into the active site and possible conformational changes of the metal-dependent tyrosine phosphatases from Gram-positive bacteria, we have determined the crystal structures of B. subtilis YwqE (in both the apo form and the phosphate-bound form) and S. pneumoniae CpsB (in the sulfate-bound form). Comparisons of the three structures reveal conformational plasticity of two active site loops. Furthermore, in both structures of the phosphate-bound YwqE and the sulfate-bound CpsB, the phosphate (or sulfate) ion is bound to a cluster of three metal ions in the active site, thus providing insight into the pre-catalytic state.


    Organizational Affiliation

    Department of Chemistry, College of Natural Sciences, Seoul National University, Seoul 151-742, South Korea.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Tyrosine-protein phosphatase YwqE
A
262Bacillus subtilis (strain 168)Mutation(s): 0 
Gene Names: ywqE
EC: 3.1.3.48
Find proteins for P96717 (Bacillus subtilis (strain 168))
Go to UniProtKB:  P96717
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
MG
Query on MG

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Download CCD File 
A
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
FE
Query on FE

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Download CCD File 
A
FE (III) ION
Fe
VTLYFUHAOXGGBS-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 Å
  • R-Value Free: 0.256 
  • R-Value Work: 0.216 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 36.624α = 90.00
b = 59.641β = 101.08
c = 57.530γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data collection
REFMACrefinement
HKL-2000data scaling
HKL-2000data reduction
SOLVEphasing

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2011-06-08
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance
  • Version 1.2: 2011-08-17
    Type: Database references