3QY9 | pdb_00003qy9

The Crystal Structure of Dihydrodipicolinate reductase from Staphylococcus aureus


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free: 
    0.225 (Depositor), 0.240 (DCC) 
  • R-Value Work: 
    0.198 (Depositor), 0.213 (DCC) 
  • R-Value Observed: 
    0.199 (Depositor) 

Starting Model: experimental
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wwPDB Validation 3D Report Full Report

Validation slider image for 3QY9

This is version 1.2 of the entry. See complete history

Literature

Structure and nucleotide specificity of Staphylococcus aureus dihydrodipicolinate reductase (DapB)

Girish, T.S.Navratna, V.Gopal, B.

(2011) FEBS Lett 585: 2561-2567

  • DOI: https://doi.org/10.1016/j.febslet.2011.07.021
  • Primary Citation Related Structures: 
    3QY9

  • PubMed Abstract: 

    Lysine biosynthesis proceeds by the nucleotide-dependent reduction of dihydrodipicolinate (DHDP) to tetrahydrodipicolinate (THDP) by dihydrodipicolinate reductase (DHDPR). The S. aureus DHDPR structure reveals different conformational states of this enzyme even in the absence of a substrate or nucleotide-cofactor. Despite lacking a conserved basic residue essential for NADPH interaction, S. aureus DHDPR differs from other homologues as NADPH is a more preferred co-factor than NADH. The structure provides a rationale-Lys35 compensates for the co-factor site mutation. These observations are significant for bi-ligand inhibitor design that relies on ligand-induced conformational changes as well as co-factor specificity for this important drug target.


  • Organizational Affiliation
    • Molecular Biophysics Unit, Indian Institute of Science, Bangalore, India.

Macromolecule Content 

  • Total Structure Weight: 110.32 kDa 
  • Atom Count: 8,376 
  • Modeled Residue Count: 962 
  • Deposited Residue Count: 972 
  • Unique protein chains: 1

Macromolecules

Find similar proteins by:|  3D Structure
Entity ID: 1
MoleculeChains  Sequence LengthOrganismDetailsImage
Dihydrodipicolinate reductase
A, B, C, D
243Staphylococcus aureus subsp. aureus COLMutation(s): 0 
Gene Names: dapB
EC: 1.3.1.26 (PDB Primary Data), 1.17.1.8 (UniProt)
UniProt
Find proteins for Q5HG24 (Staphylococcus aureus (strain COL))
Explore Q5HG24 
Go to UniProtKB:  Q5HG24
Entity Groups
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ5HG24
Sequence Annotations
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Reference Sequence

Small Molecules

Ligands 3 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
SO4

Query on SO4



Download:Ideal Coordinates CCD File
AA [auth D]
BA [auth D]
CA [auth D]
DA [auth D]
E [auth A]
AA [auth D],
BA [auth D],
CA [auth D],
DA [auth D],
E [auth A],
F [auth A],
G [auth A],
H [auth A],
K [auth B],
L [auth B],
M [auth B],
N [auth B],
O [auth B],
P [auth B],
R [auth C],
S [auth C],
T [auth C],
U [auth C],
V [auth C],
W [auth C],
Y [auth D],
Z [auth D]
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
GOL

Query on GOL



Download:Ideal Coordinates CCD File
I [auth A],
Q [auth B]
GLYCEROL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
ACT

Query on ACT



Download:Ideal Coordinates CCD File
J [auth B],
X [auth D]
ACETATE ION
C2 H3 O2
QTBSBXVTEAMEQO-UHFFFAOYSA-M

Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free:  0.225 (Depositor), 0.240 (DCC) 
  • R-Value Work:  0.198 (Depositor), 0.213 (DCC) 
  • R-Value Observed: 0.199 (Depositor) 
Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 85.9α = 90
b = 112.44β = 90
c = 131.61γ = 90
Software Package:
Software NamePurpose
HKL-2000data collection
PHASERphasing
REFMACrefinement
MOSFLMdata reduction
SCALAdata scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2011-08-03
    Type: Initial release
  • Version 1.1: 2011-09-28
    Changes: Database references
  • Version 1.2: 2023-11-01
    Changes: Data collection, Database references, Derived calculations, Refinement description