3ZWT

Structure of Human Dihydroorotate Dehydrogenase with a Bound Inhibitor


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.55 Å
  • R-Value Free: 0.177 
  • R-Value Work: 0.159 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Factors Influencing the Specificity of Inhibitor Binding to the Human and Malaria Parasite Dihydroorotate Dehydrogenases.

Bedingfield, P.T.P.Cowen, D.Acklam, P.A.Cunningham, F.Parsons, M.R.Mcconkey, G.A.Fishwick, C.W.G.Johnson, A.P.

(2012) J.Med.Chem. 55: 5841

  • DOI: 10.1021/jm300157n
  • Primary Citation of Related Structures:  3ZWS

  • PubMed Abstract: 
  • The de novo pyrimidine biosynthesis enzyme dihydroorotate dehydrogenase is an emerging drug target for the treatment of malaria. In this context a key property of Plasmodium falciparum DHODH (PfDHODH) is that it can be selectively inhibited over its ...

    The de novo pyrimidine biosynthesis enzyme dihydroorotate dehydrogenase is an emerging drug target for the treatment of malaria. In this context a key property of Plasmodium falciparum DHODH (PfDHODH) is that it can be selectively inhibited over its human homologue (HsDHODH). However, HsDHODH is also a validated drug target for autoimmune diseases such as arthritis. Here a series of novel inhibitors is described that includes compounds that switch specificity between the two enzymes as a result of small alterations in chemical structure. Structure-activity relationship (SAR), crystallography, docking, and mutagenesis studies are used to examine the binding modes of the compounds within the two enzymes and to reveal structural changes induced by inhibitor binding. Within this series, compounds with therapeutically relevant HsDHODH activity are described and their binding modes characterized using X-ray crystallography, which reveals a novel conformational shift within the inhibitor binding site.


    Organizational Affiliation

    Faculty of Biological Sciences, University of Leeds, Leeds, LS2 9JT, U.K.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
DIHYDROOROTATE DEHYDROGENASE (QUINONE), MITOCHONDRIAL
A
367Homo sapiensGene Names: DHODH
EC: 1.3.5.2
Find proteins for Q02127 (Homo sapiens)
Go to Gene View: DHODH
Go to UniProtKB:  Q02127
Small Molecules
Ligands 6 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

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A
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
FMN
Query on FMN

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A
FLAVIN MONONUCLEOTIDE
RIBOFLAVIN MONOPHOSPHATE
C17 H21 N4 O9 P
FVTCRASFADXXNN-SCRDCRAPSA-N
 Ligand Interaction
ACT
Query on ACT

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A
ACETATE ION
C2 H3 O2
QTBSBXVTEAMEQO-UHFFFAOYSA-M
 Ligand Interaction
CL
Query on CL

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A
CHLORIDE ION
Cl
VEXZGXHMUGYJMC-UHFFFAOYSA-M
 Ligand Interaction
KFZ
Query on KFZ

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A
2-{[(2,5-DICHLOROPHENYL)METHYL]SULFANYL}-5-ETHYL-[1,2,4]TRIAZOLO[1,5-A]PYRIMIDIN-7-OL
C14 H12 Cl2 N4 O S
HVAYQTZQQDSNCH-UHFFFAOYSA-N
 Ligand Interaction
ORO
Query on ORO

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Download CCD File 
A
OROTIC ACID
C5 H4 N2 O4
PXQPEWDEAKTCGB-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
KFZIC50: 13 nM BINDINGMOAD
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.55 Å
  • R-Value Free: 0.177 
  • R-Value Work: 0.159 
  • Space Group: P 32 2 1
Unit Cell:
Length (Å)Angle (°)
a = 90.790α = 90.00
b = 90.790β = 90.00
c = 123.491γ = 120.00
Software Package:
Software NamePurpose
REFMACrefinement
SCALAdata scaling
MOSFLMdata reduction
MOLREPphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2012-06-27
    Type: Initial release
  • Version 1.1: 2012-07-11
    Type: Other