3K3P

Crystal Structure of the Apo Form of D-Alanine:D-Alanine Ligase (DDl) from Streptococcus mutans


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.23 Å
  • R-Value Free: 0.248 
  • R-Value Work: 0.196 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Crystal structure of the Apo form of D-Alanine:D-Alanine ligase (DDl) from Streptococcus mutans

Lu, Y.Xu, H.Zhao, X.

(2010) Protein Pept.Lett. 17: 1053-1057


  • PubMed Abstract: 
  • D-Alanine:D-Alanine ligase (DDl) catalyzes the formation of D-Alanine:D-Alanine dipeptide and is an essential enzyme in bacterial cell wall biosynthesis.. This enzyme does not have a human ortholog, making it an attractive target for developing new a ...

    D-Alanine:D-Alanine ligase (DDl) catalyzes the formation of D-Alanine:D-Alanine dipeptide and is an essential enzyme in bacterial cell wall biosynthesis.. This enzyme does not have a human ortholog, making it an attractive target for developing new antibiotic drugs. We determined the crystal structure at 2.23 A resolution of DDl from Streptococcus mutans (SmDDl), the principal aetiological agent of human dental caries. This structure reveals that SmDDl is a dimer and has a disordered omega-loop region.


    Organizational Affiliation

    West China Hospital Nanomedicine Laboratory, Center for Regenerative Medicine and Institute for Nanobiomedical Technology and Membrane Biology, West China Hospital Sichuan University, Chengdu 610065, Sichuan, China.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
D-alanine--D-alanine ligase
A, B
383Streptococcus mutans serotype c (strain ATCC 700610 / UA159)Gene Names: ddl
EC: 6.3.2.4
Find proteins for P95803 (Streptococcus mutans serotype c (strain ATCC 700610 / UA159))
Go to UniProtKB:  P95803
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.23 Å
  • R-Value Free: 0.248 
  • R-Value Work: 0.196 
  • Space Group: P 32
Unit Cell:
Length (Å)Angle (°)
a = 79.502α = 90.00
b = 79.502β = 90.00
c = 109.400γ = 120.00
Software Package:
Software NamePurpose
MOLREPphasing
CrysalisProdata reduction
PDB_EXTRACTdata extraction
SCALAdata scaling
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 2009-10-03 
  • Released Date: 2010-09-15 
  • Deposition Author(s): Lu, Y.

Revision History 

  • Version 1.0: 2010-09-15
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance