2QK8

Crystal structure of the anthrax drug target, Bacillus anthracis dihydrofolate reductase

Structural Biology Knowledgebase: 2QK8 SBKB.org


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.274
  • R-Value Work: 0.243

wwPDB Validation Full Report


Literature

Macromolecules
Sequence Display for 2QK8

Classification: OXIDOREDUCTASE

Total Structure Weight: 19603.45

Macromolecule Entities
Molecule Chains Length Organism Details
Dihydrofolate reductase A 162 Bacillus anthracis EC#: 1.5.1.3 IUBMB
Gene Name(s): dfrA dfrD GBAA_2237 AB163_12585 AB164_02910 AB165_04300 AB166_16715 AB167_04225 AB168_28915 AB169_10700 AB170_26990 AB171_05210 AB893_11110 ADK17_12095 ADK18_10920 ADT20_24640 ADT21_25245 BF27_5333
Metabolic Pathways
Maps:       
Reactions:
ESCHER  BiGG

Small Molecules
Ligands 1 Unique
ID Chains Name / Formula / InChI Key 2D Diagram 3D Interactions
MTX
Query on MTX

A METHOTREXATE
C20 H22 N8 O5
FBOZXECLQNJBKD-ZDUSSCGKSA-N
Ligand Explorer
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
External Ligand Annotations
ID Binding Affinity (Sequence Identity %)
MTX IC50: 12.2 - 24 nM (98 - 100) BindingDB

IC50: 20 nM  BindingMOAD
IC50: 12.2 nM  PDBbind

Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.274
  • R-Value Work: 0.243
  • Space Group: C 1 2 1
  • Electron Density Server: EDS EDS

Unit Cell:

Length (Å) Angle (°)
a = 82.70 α = 90.00
b = 41.24 β = 119.20
c = 67.03 γ = 90.00

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History

Deposition Data

  • Deposited Date: 2007-07-10
  • Released Date: 2007-08-28
  • Deposition author(s): Bennett, B.C., Xu, H., Simmerman, R.F., Lee, R.E., Dealwis, C.G.

Revision History

  • 2011-07-13
    Type: Version format compliance | Details: compliance with PDB Exchange Dictionary V4
  • 2011-07-13
    Type: Source and taxonomy | Details: Removed strain from scientific name