3D5Q

Crystal Structure of 11b-HSD1 in Complex with Triazole Inhibitor


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.55 Å
  • R-Value Free: 0.265 
  • R-Value Work: 0.230 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Distinctive molecular inhibition mechanisms for selective inhibitors of human 11beta-hydroxysteroid dehydrogenase type 1.

Tu, H.Powers, J.P.Liu, J.Ursu, S.Sudom, A.Yan, X.Xu, H.Meininger, D.Degraffenreid, M.He, X.Jaen, J.C.Sun, D.Labelle, M.Yamamoto, H.Shan, B.Walker, N.P.Wang, Z.

(2008) Bioorg.Med.Chem. 16: 8922-8931

  • DOI: 10.1016/j.bmc.2008.08.065

  • PubMed Abstract: 
  • 11beta-hydroxysteroid dehydrogenase type 1 (11beta-HSD1) catalyzes the NADPH dependent interconversion of inactive cortisone to active cortisol. Excess 11beta-HSD1 or cortisol leads to insulin resistance and metabolic syndrome in animal models and in ...

    11beta-hydroxysteroid dehydrogenase type 1 (11beta-HSD1) catalyzes the NADPH dependent interconversion of inactive cortisone to active cortisol. Excess 11beta-HSD1 or cortisol leads to insulin resistance and metabolic syndrome in animal models and in humans. Inhibiting 11beta-HSD1 activity signifies a promising therapeutic strategy in the treatment of Type 2 diabetes and related diseases. Herein, we report two highly potent and selective small molecule inhibitors of human 11beta-HSD1. While compound 1, a sulfonamide, functions as a simple substrate competitive inhibitor, compound 2, a triazole, shows the kinetic profile of a mixed inhibitor. Co-crystal structures reveal that both compounds occupy the 11beta-HSD1 catalytic site, but present distinct molecular interactions with the protein. Strikingly, compound 2 interacts much closer to the cofactor NADP+ and likely modifies its binding. Together, the structural and kinetic analyses demonstrate two distinctive molecular inhibition mechanisms, providing valuable information for future inhibitor design.


    Organizational Affiliation

    Department of Metabolic Disorders, Amgen Inc., 1120 Veterans Boulevard, South San Francisco, CA 94080, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Corticosteroid 11-beta-dehydrogenase isozyme 1
A, B, C, D
272Homo sapiensMutation(s): 1 
Gene Names: HSD11B1 (HSD11, HSD11L, SDR26C1)
EC: 1.1.1.146
Find proteins for P28845 (Homo sapiens)
Go to Gene View: HSD11B1
Go to UniProtKB:  P28845
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NAP
Query on NAP

Download SDF File 
Download CCD File 
A, B, C, D
NADP NICOTINAMIDE-ADENINE-DINUCLEOTIDE PHOSPHATE
2'-MONOPHOSPHOADENOSINE 5'-DIPHOSPHORIBOSE
C21 H28 N7 O17 P3
XJLXINKUBYWONI-NNYOXOHSSA-N
 Ligand Interaction
T30
Query on T30

Download SDF File 
Download CCD File 
A, B, C, D
3-[1-(4-fluorophenyl)cyclopropyl]-4-(1-methylethyl)-5-[4-(trifluoromethoxy)phenyl]-4H-1,2,4-triazole
C21 H19 F4 N3 O
BDLBQEJTZWWSND-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
T30IC50: 1.6 nM (99) BINDINGDB
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.55 Å
  • R-Value Free: 0.265 
  • R-Value Work: 0.230 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 56.675α = 90.00
b = 153.319β = 92.20
c = 73.601γ = 90.00
Software Package:
Software NamePurpose
PDB_EXTRACTdata extraction
ADSCdata collection
MOLREPphasing
SCALAdata scaling
REFMACrefinement
MOSFLMdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2008-10-07
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance