3USN

STRUCTURE OF THE CATALYTIC DOMAIN OF HUMAN FIBROBLAST STROMELYSIN-1 INHIBITED WITH THE THIADIAZOLE INHIBITOR IPNU-107859, NMR, 1 STRUCTURE


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 
  • Conformers Submitted: 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Solution structures of stromelysin complexed to thiadiazole inhibitors.

Stockman, B.J.Waldon, D.J.Gates, J.A.Scahill, T.A.Kloosterman, D.A.Mizsak, S.A.Jacobsen, E.J.Belonga, K.L.Mitchell, M.A.Mao, B.Petke, J.D.Goodman, L.Powers, E.A.Ledbetter, S.R.Kaytes, P.S.Vogeli, G.Marshall, V.P.Petzold, G.L.Poorman, R.A.

(1998) Protein Sci 7: 2281-2286

  • DOI: https://doi.org/10.1002/pro.5560071105
  • Primary Citation of Related Structures:  
    3USN

  • PubMed Abstract: 

    Unregulated or overexpressed matrix metalloproteinases (MMPs), including stromelysin, collagenase, and gelatinase. have been implicated in several pathological conditions including arthritis and cancer. Small-molecule MMP inhibitors may have therapeutic value in the treatment of these diseases. In this regard, the solution structures of two stromelysin/ inhibitor complexes have been investigated using 1H, 13C, and 15N NMR spectroscopy. Both-inhibitors are members of a novel class of matrix metalloproteinase inhibitor that contain a thiadiazole group and that interact with stromelysin in a manner distinct from other classes of inhibitors. The inhibitors coordinate the catalytic zinc atom through their exocyclic sulfur atom, with the remainder of the ligand extending into the S1-S3 side of the active site. The binding of inhibitor containing a protonated or fluorinated aromatic ring was investigated using 1H and 19F NMR spectroscopy. The fluorinated ring was found to have a reduced ring-flip rate compared to the protonated version. A strong, coplanar interaction between the fluorinated ring of the inhibitor and the aromatic ring of Tyr155 is proposed to account for the reduced ring-flip rate and for the increase in binding affinity observed for the fluorinated inhibitor compared to the protonated inhibitor. Binding interactions observed for the thiadiazole class of ligands have implications for the design of matrix metalloproteinase inhibitors.


  • Organizational Affiliation

    Structural, Analytical & Medicinal Chemistry, Pharmacia & Upjohn, Kalamazoo, Michigan 49001, USA. brian.j.stockman@am.pnu.com


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
STROMELYSIN-1168Homo sapiensMutation(s): 0 
EC: 3.4.24.17
UniProt & NIH Common Fund Data Resources
Find proteins for P08254 (Homo sapiens)
Explore P08254 
Go to UniProtKB:  P08254
PHAROS:  P08254
GTEx:  ENSG00000149968 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP08254
Sequence Annotations
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  • Reference Sequence
Small Molecules
Binding Affinity Annotations 
IDSourceBinding Affinity
ATT PDBBind:  3USN Ki: 710 (nM) from 1 assay(s)
BindingDB:  3USN Ki: min: 708, max: 710 (nM) from 2 assay(s)
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 
  • Conformers Submitted: 

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1999-01-20
    Type: Initial release
  • Version 1.1: 2008-03-25
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2022-03-16
    Changes: Data collection, Database references, Derived calculations, Other