2BXV

Dual binding mode of a novel series of DHODH inhibitors


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.15 Å
  • R-Value Free: 0.223 
  • R-Value Work: 0.203 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Dual binding mode of a novel series of DHODH inhibitors.

Baumgartner, R.Walloschek, M.Kralik, M.Gotschlich, A.Tasler, S.Mies, J.Leban, J.

(2006) J. Med. Chem. 49: 1239-1247

  • DOI: 10.1021/jm0506975
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Human dihydroorotate dehydrogenase (DHODH) represents an important target for the treatment of hyperproliferative and inflammatory diseases. In the cell DHODH catalyzes the rate-limiting step of the de novo pyrimidine biosynthesis. DHODH inhibition r ...

    Human dihydroorotate dehydrogenase (DHODH) represents an important target for the treatment of hyperproliferative and inflammatory diseases. In the cell DHODH catalyzes the rate-limiting step of the de novo pyrimidine biosynthesis. DHODH inhibition results in beneficial immunosuppressant and antiproliferative effects in diseases such as rheumatoid arthritis. Here, we present high-resolution X-ray structures of human DHODH in complex with a novel class of low molecular weight compounds that inhibit the enzyme in the nanomolar range. Some compounds showed an interesting dual binding mode within the same cocrystal strongly depending on the nature of chemical substitution. Measured in vitro activity data correlated with the prevailing mode of binding and explained the observed structure-activity relationship. Additionally, the X-ray data confirmed the competitive nature of the inhibitors toward the putative ubiquinone binding site and will guide structure-based design and synthesis of molecules with higher activity.


    Organizational Affiliation

    4SC AG, Am Klopferspitz 19a, 82152 Martinsried, Germany. baumgartner@4sc.com




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
DIHYDROOROTATE DEHYDROGENASE
A
367Homo sapiensMutation(s): 0 
Gene 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 5 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SO4
Query on SO4

Download SDF File 
Download CCD File 
A
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
FMN
Query on FMN

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

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Download CCD File 
A
ACETATE ION
C2 H3 O2
QTBSBXVTEAMEQO-UHFFFAOYSA-M
 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
3FT
Query on 3FT

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Download CCD File 
A
2-({[3-FLUORO-3'-(TRIFLUOROMETHOXY)BIPHENYL-4-YL]AMINO}CARBONYL)CYCLOPENT-1-ENE-1-CARBOXYLIC ACID
C20 H15 F4 N O4
CTKBCQCRHRCICI-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
3FTIC50: 280 nM (100) BINDINGDB
3FTIC50: 280 nM BINDINGMOAD
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.15 Å
  • R-Value Free: 0.223 
  • R-Value Work: 0.203 
  • Space Group: P 32 2 1
Unit Cell:
Length (Å)Angle (°)
a = 90.652α = 90.00
b = 90.652β = 90.00
c = 123.213γ = 120.00
Software Package:
Software NamePurpose
CNSrefinement
MOLREPphasing
MOSFLMdata reduction
CCP4data scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2006-08-16
    Type: Initial release
  • Version 1.1: 2011-05-08
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2018-04-25
    Type: Data collection, Database references, Source and taxonomy