1DYR

THE STRUCTURE OF PNEUMOCYSTIS CARINII DIHYDROFOLATE REDUCTASE TO 1.9 ANGSTROMS RESOLUTION


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.86 Å
  • R-Value Observed: 0.181 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

The structure of Pneumocystis carinii dihydrofolate reductase to 1.9 A resolution.

Champness, J.N.Achari, A.Ballantine, S.P.Bryant, P.K.Delves, C.J.Stammers, D.K.

(1994) Structure 2: 915-924

  • DOI: 10.1016/s0969-2126(94)00093-x
  • Primary Citation of Related Structures:  
    1DYR

  • PubMed Abstract: 
  • The fungal pathogen Pneumocystis carinii causes a pneumonia which is an opportunistic infection of AIDS patients. Current therapy includes the dihydrofolate reductase (DHFR) inhibitor trimethoprim which is selective but only a relatively weak inhibitor of the enzyme for P ...

    The fungal pathogen Pneumocystis carinii causes a pneumonia which is an opportunistic infection of AIDS patients. Current therapy includes the dihydrofolate reductase (DHFR) inhibitor trimethoprim which is selective but only a relatively weak inhibitor of the enzyme for P. carinii. Determination of the three-dimensional structure of the enzyme should form the basis for design of more potent and selective therapeutic agents for treatment of the disease.


    Related Citations: 
    • Preliminary Crystallographic Data for Pneumocystis Carinii Dihydrofolate Reductase
      Stammers, D.K., Delves, C., Ballantine, S., Jones, E.Y., Stuart, D.I., Achari, A., Bryant, P.K., Champness, J.N.
      (1993) J Mol Biol 230: 679
    • Refolding of Recombinant Pneumocystis Carinii Dihydrofolate Reductase and Characterization of the Enzyme
      Delves, C.J., Ballantine, S.P., Tansik, R.L., Baccanari, D.P., Stammers, D.K.
      (1993) Protein Expr Purif 4: 16

    Organizational Affiliation

    Physical Sciences Department, Wellcome Research Laboratories, Beckenham, Kent, UK.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
DIHYDROFOLATE REDUCTASEA206Pneumocystis cariniiMutation(s): 0 
Gene Names: C-DNA P.CARINII DHFR
EC: 1.5.1.3
Find proteins for P16184 (Pneumocystis carinii)
Explore P16184 
Go to UniProtKB:  P16184
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NDP
Query on NDP

Download Ideal Coordinates CCD File 
B [auth A]NADPH DIHYDRO-NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE
C21 H30 N7 O17 P3
ACFIXJIJDZMPPO-NNYOXOHSSA-N
 Ligand Interaction
TOP
Query on TOP

Download Ideal Coordinates CCD File 
C [auth A]TRIMETHOPRIM
C14 H18 N4 O3
IEDVJHCEMCRBQM-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
TOPKi:  151.36000061035156   nM  BindingDB
TOPIC50:  43000   nM  BindingDB
TOPIC50:  40000   nM  BindingDB
TOPIC50:  26800   nM  BindingDB
TOPIC50:  13000   nM  BindingDB
TOPIC50:  20000   nM  Binding MOAD
TOPIC50:  12000   nM  BindingDB
TOPIC50:  15000   nM  BindingDB
TOPKi:  280000   nM  BindingDB
TOPKi:  152   nM  BindingDB
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.86 Å
  • R-Value Observed: 0.181 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 69.9α = 90
b = 43.6β = 117.7
c = 37.6γ = 90
Software Package:
Software NamePurpose
PROFFTrefinement
XENGENdata reduction

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1995-10-15
    Type: Initial release
  • Version 1.1: 2008-03-03
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance