1DLS

METHOTREXATE-RESISTANT VARIANTS OF HUMAN DIHYDROFOLATE REDUCTASE WITH SUBSTITUTION OF LEUCINE 22: KINETICS, CRYSTALLOGRAPHY AND POTENTIAL AS SELECTABLE MARKERS

Structural Biology Knowledgebase: 1DLS SBKB.org


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Observed: 0.156

Literature

Macromolecules
Sequence Display for 1DLS

Classification: OXIDO-REDUCTASE

Total Structure Weight: 22599.58

Macromolecule Entities
Molecule Chains Length Organism Details
DIHYDROFOLATE REDUCTASE A 186 Homo sapiens EC#: 1.5.1.3 IUBMB
Mutation: L22Y
Gene Name(s): DHFR Gene View
Metabolic Pathways
Maps:       
Reactions:
ESCHER  BiGG

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

A NADPH DIHYDRO-NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE
C21 H30 N7 O17 P3
ACFIXJIJDZMPPO-NNYOXOHSSA-N
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
MTX
Query on MTX

A METHOTREXATE
C20 H22 N8 O5
FBOZXECLQNJBKD-ZDUSSCGKSA-N
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
External Ligand Annotations
ID Binding Affinity (Sequence Identity %)
MTX EC50: 12.5 - 13.3 nM (99) BindingDB
IC50: 0.6 - 720 nM (86 - 99) BindingDB
Ki: 0.00034 - 0.179 nM (89 - 99) BindingDB

Ki: 10.9 nM  BindingMOAD
N/A in PDBbind

Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Observed: 0.156
  • Space Group: H 3

Unit Cell:

Length (Å) Angle (°)
a = 87.50 α = 90.00
b = 87.50 β = 90.00
c = 76.73 γ = 120.00

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History

Deposition Data

  • Deposited Date: 1995-01-25
  • Released Date: 1995-04-20
  • Deposition author(s): Cody, V., Galitsky, N., Luft, J.R., Pangborn, W.

Revision History

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