Macromolecules
Sequence Display for 3FL9

Classification: OXIDOREDUCTASE

Total Structure Weight: 159568.08

Macromolecule Entities
Molecule Chains Length Organism Details
dihydrofolate reductase (DHFR) A, B, C..., D, E, F, G, HA, B, C, D, E, F, G, H 166 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

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

A, B, C, D, E, F, G, H TRIMETHOPRIM
C14 H18 N4 O3
IEDVJHCEMCRBQM-UHFFFAOYSA-N
Ligand Explorer
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
CA
Query on CA

A, B, C, D, E, F, G, H CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
Ligand Explorer
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
External Ligand Annotations
ID Binding Affinity (Sequence Identity %)
TOP IC50: 42960 - 77300 nM (98 - 100) BindingDB
Ki: 24100 nM (100) BindingDB

IC50: 77000000 nM  BindingMOAD
IC50: 77200000 nM  PDBbind

Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.309
  • R-Value Work: 0.237
  • Space Group: P 1 2 1

Unit Cell:

Length (Å) Angle (°)
a = 67.93 α = 90.00
b = 67.61 β = 90.12
c = 167.00 γ = 90.00

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History

Deposition Data

  • Deposited Date: 2008-12-18
  • Released Date: 2009-04-28
  • Deposition author(s): Bourne, C.R., Barrow, W.W.

Revision History

  • 2011-11-16
    Type: Atom occupancy | Details: Atom occupancy
  • 2011-07-13
    Type: Version format compliance | Details: compliance with PDB Exchange Dictionary V4