1KMS

HUMAN DIHYDROFOLATE REDUCTASE COMPLEXED WITH NADPH AND 6-([5-QUINOLYLAMINO]METHYL)-2,4-DIAMINO-5-METHYLPYRIDO[2,3-D]PYRIMIDINE (SRI-9439), A LIPOPHILIC ANTIFOLATE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.09 Å
  • R-Value Free: 0.173
  • R-Value Work: 0.131

Literature

Macromolecules
Sequence Display for 1KMS

Classification: OXIDOREDUCTASE

Total Structure Weight: 22618.45

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

Small Molecules
Ligands 3 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)
LIH
Query on LIH

A 6-([5-QUINOLYLAMINO]METHYL)-2,4-DIAMINO-5- METHYLPYRIDO[2,3-D]PYRIMIDINE
SRI-9439 (Synonym)
C18 H17 N7
KMSATRJZEXNGDP-UHFFFAOYSA-N
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
SO4
Query on SO4

A SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
External Ligand Annotations
ID Binding Affinity (Sequence Identity %)
LIH IC50: 0.98 - 4.3 nM (100) BindingDB

N/A in BindingMoad
N/A in PDBbind

Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.09 Å
  • R-Value Free: 0.173
  • R-Value Work: 0.131
  • Space Group: P 21 21 21

Unit Cell:

Length (Å) Angle (°)
a = 41.47 α = 90.00
b = 55.28 β = 90.00
c = 82.80 γ = 90.00

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History

Deposition Data

  • Deposited Date: 2001-12-17
  • Released Date: 2002-07-10
  • Deposition author(s): Klon, A.E., Heroux, A., Ross, L.J., Pathak, V., Johnson, C.A., Piper, J.R., Borhani, D.W.

Revision History

  • 2008-04-27
    Type: Version format compliance
  • 2011-07-13
    Type: Version format compliance