1IOV

COMPLEX OF D-ALA:D-ALA LIGASE WITH ADP AND A PHOSPHORYL PHOSPHONATE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.204 
  • R-Value Work: 0.156 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

D-alanine:D-alanine ligase: phosphonate and phosphinate intermediates with wild type and the Y216F mutant.

Fan, C.Park, I.S.Walsh, C.T.Knox, J.R.

(1997) Biochemistry 36: 2531-2538

  • DOI: 10.1021/bi962431t
  • Primary Citation of Related Structures:  1IOW

  • PubMed Abstract: 
  • The crystallographic structure of the D-alanine:D-alanine ligase of the ddlB gene of Escherichia coli complexed with a D-Ala-D-alpha-hydroxybutyrate phosphonate and the structure of the Y216F mutant ligase complexed with a D-Ala-D-Ala phosphinate hav ...

    The crystallographic structure of the D-alanine:D-alanine ligase of the ddlB gene of Escherichia coli complexed with a D-Ala-D-alpha-hydroxybutyrate phosphonate and the structure of the Y216F mutant ligase complexed with a D-Ala-D-Ala phosphinate have been determined to 2.2 and 1.9 A resolution, respectively, and refined to R factors of 0.156 and 0.158. In each complex the inhibitor has reacted with ATP to produce ADP and a tight-binding phosphorylated transition state intermediate. Comparison of these two structures with the known crystal structure of the phosphinate intermediate of the wild-type ligase shows no major conformational changes, but B factors indicate differences in mobility of loops covering the binding site. The weaker inhibition of the Y216F mutant by both inhibitors is thought to be due in part to the loss of an interloop hydrogen bond. A similar mechanism may account for poor inhibition of VanA, the homologous D-Ala:D-lactate ligase produced by vancomycin-resistant enterococci.


    Related Citations: 
    • A Common Fold for Peptide Synthetases Cleaving ATP to Adp
      Fan, C.,Moews, P.C.,Shi, Y.,Walsh, C.T.,Knox, J.R.
      (1995) Proc.Natl.Acad.Sci.USA 92: 1172
    • Vancomycin Resistance: Structure of D-Alanine:D-Alanine Ligase at 2.3 A Resolution
      Fan, C.,Moews, P.C.,Walsh, C.T.,Knox, J.R.
      (1994) Science 266: 439


    Organizational Affiliation

    Department of Molecular and Cell Biology, The University of Connecticut, Storrs 06269-3125, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
D-ALA\:D-ALA LIGASE
A
306Escherichia coli (strain K12)Gene Names: ddlB (ddl)
EC: 6.3.2.4
Find proteins for P07862 (Escherichia coli (strain K12))
Go to UniProtKB:  P07862
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ADP
Query on ADP

Download SDF File 
Download CCD File 
A
ADENOSINE-5'-DIPHOSPHATE
C10 H15 N5 O10 P2
XTWYTFMLZFPYCI-KQYNXXCUSA-N
 Ligand Interaction
POB
Query on POB

Download SDF File 
Download CCD File 
A
2-[(1-AMINO-ETHYL)-PHOSPHATE-PHOSPHINOYLOXY]-BUTYRIC ACID
C6 H15 N O8 P2
LSPLWPXJPPQFJE-RJPXELBVSA-N
 Ligand Interaction
MG
Query on MG

Download SDF File 
Download CCD File 
A
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.204 
  • R-Value Work: 0.156 
  • Space Group: P 21 21 2
Unit Cell:
Length (Å)Angle (°)
a = 98.600α = 90.00
b = 51.000β = 90.00
c = 51.200γ = 90.00
Software Package:
Software NamePurpose
PROLSQrefinement
XENGENdata reduction
XENGENdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1997-02-12
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance