1EAT

NONPEPTIDIC INHIBITORS OF HUMAN LEUKOCYTE ELASTASE. 5. DESIGN, SYNTHESIS, AND X-RAY CRYSTALLOGRAPHY OF A SERIES OF ORALLY ACTIVE 5-AMINO-PYRIMIDIN-6-ONE-CONTAINING TRIFLUOROMETHYLKETONES


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Work: 0.167 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Nonpeptidic inhibitors of human leukocyte elastase. 5. Design, synthesis, and X-ray crystallography of a series of orally active 5-aminopyrimidin-6-one-containing trifluoromethyl ketones.

Veale, C.A.Bernstein, P.R.Bryant, C.Ceccarelli, C.Damewood Jr., J.R.Earley, R.Feeney, S.W.Gomes, B.Kosmider, B.J.Steelman, G.B.Thomas, R.M.Vacek, E.P.Williams, J.C.Wolanin, D.J.Woolson, S.

(1995) J.Med.Chem. 38: 98-108


  • PubMed Abstract: 
  • The effects of changes in substitution in a series of 5-amino-2-pyrimidin-6-ones on both in vitro activity and oral activity in an acute hemorrhagic assay have been explored. These compounds contained either a trifluoromethyl ketone or a boronic acid ...

    The effects of changes in substitution in a series of 5-amino-2-pyrimidin-6-ones on both in vitro activity and oral activity in an acute hemorrhagic assay have been explored. These compounds contained either a trifluoromethyl ketone or a boronic acid moiety to bind covalently to the Ser-195 hydroxyl of human leukocyte elastase (HLE). Boronic acid-containing inhibitors were found to be more potent than the corresponding trifluoromethyl ketones in vitro but were less active upon oral administration. Compound 13b was found to offer the best combination of oral potency, duration of action, and enzyme selectivity and, as such, was selected for further biological testing. X-ray crystallography of a cocrystallized complex of compound 19m and porcine pancreatic elastase demonstrated that the inhibitor is bound to the enzyme in a manner similar to that found previously for a closely related series of pyridone-containing inhibitors of HLE.


    Related Citations: 
    • Nonpeptidic Inhibitors of Human Leukocyte Elastase. 6. Design of a Potent, Intratracheally Active, Pyridone-Based Trifluoromethyl Ketone
      Bernstein, P.R.,Gomes, B.C.,Kosmider, B.J.,Vacek, E.P.,Williams, J.C.
      () TO BE PUBLISHED --: --
    • Nonpeptidic Inhibitors of Human Leukocyte Elastase. 2. Design, Synthesis and in Vitro Activity of a Series of 3-Amino-6-Arylpyridin-2-One Trifluoromethyl Ketones
      Damewood, J.R.,Edwards, P.D.,Feeney, S.,Gomes, B.C.,Steelman, G.B.,Tuthill, P.A.,Warner, P.,Williams, J.C.,Woolson, S.A.,Wolanin, D.,Veale, C.
      (1994) J.Med.Chem. 37: 3303
    • Design, Synthesis, and Kinetic Evaluation of a Unique Class of Elastase Inhibitors, the Peptidyl Alpha-Ketobenzoxazoles,and the X-Ray Crystal Structure of the Covalent Complex between Porcine Pancreatic Elastase and Ac-Ala-Pro-Val-2-Benzoxazole
      Edwards, P.D.,Meyer, E.F.,Vijayalakshmi, J.,Tuthill, P.A.,Andisik, D.A.,Gomes, B.,Strimpler, A.
      (1992) J.Am.Chem.Soc. 114: 1854
    • Nonpeptidic Inhibitors of Human Leukocyte Elastase. 3. Design, Synthesis, X-Ray Crystallographic Analysis, and Structure-Activity Relationships for a Series of Orally Active 3-Amino-6-Phenylpyridin-2-One Trifluoromethyl Ketones
      Bernstein, P.R.,Andisik, D.,Bradley, P.K.,Bryant, C.B.,Ceccarelli, C.,Damewood, J.R.,Earley, R.,Edwards, P.D.,Feeney, S.,Gomes, B.C.,Kosmider, B.J.,Steelman, G.B.,Thomas, R.M.,Vacek, E.P.,Veale, C.A.,Williams, J.C.,Wolanin, D.J.,Woolson, S.A.
      (1994) J.Med.Chem. 37: 3313
    • Nonpeptidic Inhibitors of Human Leukocyte Elastase. 1. The Design and Synthesis of Pyridone-Containing Inhibitors
      Warner, P.,Green, R.C.,Gomes, B.C.,Williams, J.C.
      (1994) J.Med.Chem. 37: 3090
    • Nonpeptidic Inhibitors of Human Leukocyte Elastase. 4. Design, Synthesis,in Vitro, and in Vivo Activity of a Series of Beta-Carbolinone-Containing Trifluoromethyl Ketones
      Veale, C.A.,Damewood, J.R.,Steelman, G.B.,Bryant, C.,Gomes, B.,Williams, J.
      () TO BE PUBLISHED --: --
    • Design of Orally Active, Nonpeptidic Inhibitors of Human Leukocyte Elastase
      Brown, F.J.,Andisik, D.W.,Bernstein, P.R.,Bryant, C.B.,Ceccarelli, C.,Damewood, J.R.,Edwards, P.D.,Earley, R.,Feeney, S.W.,Green, R.C.,Gomes, B.,Kosmider, B.J.,Krell, R.,Shaw, A.,Steelman, G.B.,Thomas, R.M.,Vacek, E.P.,Veale, C.A.,Tuthill, P.A.,Warner, P.,Williams, J.C.,Wolanin, D.J.,Woolson, S.A.
      (1994) J.Med.Chem. 37: 1259
    • Crystal Structure of the Covalent Complex Formed by a Peptidyl Alpha,Alpha-Difluoro-Beta-Keto Amide with Porcine Pancreatic Elastase at 1.78-Angstrom Resolution
      Takahashi, L.H.,Radhakrishnan, R.,Rosenfield, R.E.,Meyer, E.F.,Trainor, D.A.
      (1989) J.Am.Chem.Soc. 111: 3368
    • X-Ray Diffraction Analysis of the Inhibition of Porcine Pancreatic Elastase by a Peptidyl Trifluoromethylketone
      Takahashi, L.H.,Radhakrishnan, R.,Rosenfield, R.E.,Meyer, E.F.,Trainor, D.A.,Stein, M.
      (1988) J.Mol.Biol. 201: 423


    Organizational Affiliation

    Department of Medicinal Chemistry, ZENECA Pharmaceuticals, Wilmington, Delaware 19897.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
PORCINE PANCREATIC ELASTASE
A
240Sus scrofaMutation(s): 0 
Gene Names: CELA1 (ELA1)
EC: 3.4.21.36
Find proteins for P00772 (Sus scrofa)
Go to Gene View: CELA1
Go to UniProtKB:  P00772
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NA
Query on NA

Download SDF File 
Download CCD File 
A
SODIUM ION
Na
FKNQFGJONOIPTF-UHFFFAOYSA-N
 Ligand Interaction
SO4
Query on SO4

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

Download SDF File 
Download CCD File 
A
2-[5-METHANESULFONYLAMINO-2-(4-AMINOPHENYL)-6-OXO-1,6-DIHYDRO-1-PYRIMIDINYL]-N-(3,3,3-TRIFLUORO-1-ISOPROPYL-2-OXOPROPYL)ACETAMIDE
C19 H22 F3 N5 O5 S
JWSWTHSJMGVOKE-HNNXBMFYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
TFIKi: 15 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Work: 0.167 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 51.990α = 90.00
b = 57.790β = 90.00
c = 75.720γ = 90.00
Software Package:
Software NamePurpose
X-PLORphasing
X-PLORmodel building
X-PLORrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 1994-11-22 
  • Released Date: 1995-02-07 
  • Deposition Author(s): Ceccarelli, C.

Revision History 

  • Version 1.0: 1995-02-07
    Type: Initial release
  • Version 1.1: 2008-03-03
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2012-02-22
    Type: Database references