5NR8

Crystal structure of human chitotriosidase-1 (hCHIT) catalytic domain in complex with compound 7a


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.349 Å

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Targeting Acidic Mammalian chitinase Is Effective in Animal Model of Asthma.

Mazur, M.Olczak, J.Olejniczak, S.Koralewski, R.Czestkowski, W.Jedrzejczak, A.Golab, J.Dzwonek, K.Dymek, B.Sklepkiewicz, P.L.Zagozdzon, A.Noonan, T.Mahboubi, K.Conway, B.Sheeler, R.Beckett, P.Hungerford, W.M.Podjarny, A.Mitschler, A.Cousido-Siah, A.Fadel, F.Golebiowski, A.

(2018) J. Med. Chem. 61: 695-710

  • DOI: 10.1021/acs.jmedchem.7b01051
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • This article highlights our work toward the identification of a potent, selective, and efficacious acidic mammalian chitinase (AMCase) inhibitor. Rational design, guided by X-ray analysis of several inhibitors bound to human chitotriosidase (hCHIT1), ...

    This article highlights our work toward the identification of a potent, selective, and efficacious acidic mammalian chitinase (AMCase) inhibitor. Rational design, guided by X-ray analysis of several inhibitors bound to human chitotriosidase (hCHIT1), led to the identification of compound 7f as a highly potent AMCase inhibitor (IC 50 values of 14 and 19 nM against human and mouse enzyme, respectively) and selective (>150× against mCHIT1) with very good PK properties. This compound dosed once daily at 30 mg/kg po showed significant anti-inflammatory efficacy in HDM-induced allergic airway inflammation in mice, reducing inflammatory cell influx in the BALF and total IgE concentration in plasma, which correlated with decrease of chitinolytic activity. Therapeutic efficacy of compound 7f in the clinically relevant aeroallergen-induced acute asthma model in mice provides a rationale for developing AMCase inhibitor for the treatment of asthma.


    Organizational Affiliation

    OncoArendi Therapeutics SA , Żwirki i Wigury 101, 02-089 Warsaw, Poland.,Department of Immunology, Medical University of Warsaw , 1A Banacha Str., 02-097 Warsaw, Poland.,Department of Integrative Biology, IGBMC, CNRS, INSERM, Université de Strasbourg , 1 Rue Laurent Fries, 67404 Illkirch, France.,The Institute for Pharmaceutical Discovery , Business Drive 23, Branford, Connecticut 06405, United States.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Chitotriosidase-1
A
377Homo sapiensMutation(s): 0 
Gene Names: CHIT1
EC: 3.2.1.14
Find proteins for Q13231 (Homo sapiens)
Go to Gene View: CHIT1
Go to UniProtKB:  Q13231
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
95N
Query on 95N

Download SDF File 
Download CCD File 
A
1-(3-azanyl-1~{H}-1,2,4-triazol-5-yl)-~{N}-[2-(4-bromophenyl)ethyl]-~{N}-methyl-piperidin-4-amine
C16 H23 Br N6
DRIHQKATVUWZLY-UHFFFAOYSA-N
 Ligand Interaction
GOL
Query on GOL

Download SDF File 
Download CCD File 
A
GLYCEROL
GLYCERIN; PROPANE-1,2,3-TRIOL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.349 Å
  • Space Group: P 21 21 2
Unit Cell:
Length (Å)Angle (°)
a = 85.897α = 90.00
b = 106.006β = 90.00
c = 42.158γ = 90.00
Software Package:
Software NamePurpose
PHENIXrefinement
PHASERphasing
Aimlessdata scaling
HKL-2000data reduction
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2018-02-21
    Type: Initial release
  • Version 1.1: 2019-10-16
    Type: Data collection