4A6L

beta-tryptase inhibitor


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.05 Å
  • R-Value Free: 0.211 
  • R-Value Work: 0.188 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

Structure-Based Library Design and the Discovery of a Potent and Selective Mast Cell Beta-Tryptase Inhibitor as an Oral Therapeutic Agent.

Liang, G.Aldous, S.Merriman, G.Levell, J.Pribish, J.Cairns, J.Chen, X.Maignan, S.Mathieu, M.Tsay, J.Sides, K.Rebello, S.Whitely, B.Morize, I.Pauls, H.W.

(2012) Bioorg.Med.Chem.Lett. 22: 1049

  • DOI: 10.1016/j.bmcl.2011.11.119

  • PubMed Abstract: 
  • A solid phase combinatorial library was designed based on X-ray structures and in-silico models to explore an inducible S4+ pocket, which is formed by a simple side-chain rotation of Tyr95. This inducible S4+ pocket is unique to β-tryptase and does n ...

    A solid phase combinatorial library was designed based on X-ray structures and in-silico models to explore an inducible S4+ pocket, which is formed by a simple side-chain rotation of Tyr95. This inducible S4+ pocket is unique to β-tryptase and does not exist for other trypsin-like serine proteases of interest. Therefore, inhibitors utilizing this pocket have inherent advantages for being selective against other proteases in the same family. A member of this library was found to be a potent and selective β-tryptase inhibitor with a suitable pharmacokinetic profile for further clinical evaluation.


    Organizational Affiliation

    Molecular Innovative Therapeutics, Sanofi Pharmaceuticals, USA. guyan.liang@sanofi.com




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
TRYPTASE ALPHA/BETA-1
A, B, C, D
245Homo sapiensMutation(s): 0 
Gene Names: TPSB2 (TPS2)
EC: 3.4.21.59
Find proteins for P20231 (Homo sapiens)
Go to Gene View: TPSB2
Go to UniProtKB:  P20231
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
P43
Query on P43

Download SDF File 
Download CCD File 
A, B, C, D
1-{3-[1-({5-[(2-fluorophenyl)ethynyl]furan-2-yl}carbonyl)piperidin-4-yl]phenyl}methanamine
C25 H23 F N2 O2
FTLQSQQQFMZPKO-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
P43Ki: 10 nM BINDINGMOAD
P43Ki: 10 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.05 Å
  • R-Value Free: 0.211 
  • R-Value Work: 0.188 
  • Space Group: P 41
Unit Cell:
Length (Å)Angle (°)
a = 82.234α = 90.00
b = 82.234β = 90.00
c = 170.654γ = 90.00
Software Package:
Software NamePurpose
BUSTERrefinement
SCALAdata scaling
AMoREphasing
MOSFLMdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2012-01-25
    Type: Initial release