2FV5

Crystal structure of TACE in complex with IK682


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.10 Å
  • R-Value Free: 0.256 
  • R-Value Work: 0.218 
  • R-Value Observed: 0.220 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

IK682, a tight binding inhibitor of TACE.

Niu, X.Umland, S.Ingram, R.Beyer, B.M.Liu, Y.H.Sun, J.Lundell, D.Orth, P.

(2006) Arch Biochem Biophys 451: 43-50

  • DOI: 10.1016/j.abb.2006.03.034
  • Primary Citation of Related Structures:  
    2FV5

  • PubMed Abstract: 
  • TNFalpha converting enzyme (TACE) is the major metalloproteinase for the processing of TNFalpha, a key inflammatory cytokine. IK682, a hydroxamate compound, was reported to be a potent and specific TACE inhibitor [J.J. Duan, L. Chen, Z.R. Wasserman, Z. Lu, R ...

    TNFalpha converting enzyme (TACE) is the major metalloproteinase for the processing of TNFalpha, a key inflammatory cytokine. IK682, a hydroxamate compound, was reported to be a potent and specific TACE inhibitor [J.J. Duan, L. Chen, Z.R. Wasserman, Z. Lu, R.Q. Liu, M.B. Covington, M. Qian, K.D. Hardman, R.L. Magolda, R.C. Newton, D.D. Christ, R.R. Wexler, C.P. Decicco, J. Med. Chem. 45 (2002) 4954-4957]. The binding kinetics of IK682 and the ectodomain of human TACE was examined. The k(on) of IK682 was determined as 1.1+/-0.3 x 10(8) M(-1) min(-1). No detectable dissociation of IK682 from TACE was observed following dialysis, dilution, and extensive washing over a maximum of 72 h. This was in contrast to the rapid dissociation of IK682 from ADAM10. LC/MS analysis of the TACE-IK682 complex after dissociation under denaturing conditions indicated that the tight binding is not due to covalent interaction. The X-ray crystal structure of TACE-IK682 complex revealed multiple binding points at the S1' and S3' sites and the movement of a loop (from Ala349 to Gly442) to accommodate the binding of the quinolinyl group of IK682 at the S3' pocket. The conformational changes of TACE may contribute significantly to the high affinity binding as a result of a more stable TACE-inhibitor complex.


    Organizational Affiliation

    Department of Inflammation and Infection, Schering Plough Research Institute, 2015 Galloping Hill Road, Kenilworth, NJ 07033, USA. xioda.niu@spcorp.com



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
ADAM 17 AB261Homo sapiensMutation(s): 3 
Gene Names: ADAM17CSVPTACE
EC: 3.4.24.86
Find proteins for P78536 (Homo sapiens)
Explore P78536 
Go to UniProtKB:  P78536
NIH Common Fund Data Resources
PHAROS:  P78536
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
541
Query on 541

Download Ideal Coordinates CCD File 
A, B
(2R)-N-HYDROXY-2-[(3S)-3-METHYL-3-{4-[(2-METHYLQUINOLIN-4-YL)METHOXY]PHENYL}-2-OXOPYRROLIDIN-1-YL]PROPANAMIDE
C25 H27 N3 O4
YDMIPBHQKFOFQW-NSYGIPOTSA-N
 Ligand Interaction
ZN
Query on ZN

Download Ideal Coordinates CCD File 
A, B
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
541Ki:  0.5600000023841858   nM  BindingDB
541IC50:  1   nM  BindingDB
541Ki:  0.05999999865889549   nM  BindingDB
541IC50:  1   nM  BindingDB
541Ki:  0.029999999329447746   nM  Binding MOAD
541IC50:  0.5600000023841858   nM  BindingDB
541IC50:  350   nM  BindingDB
541Kd :  0.0020000000949949026   nM  PDBBind
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.10 Å
  • R-Value Free: 0.256 
  • R-Value Work: 0.218 
  • R-Value Observed: 0.220 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 74.614α = 90
b = 75.696β = 90
c = 103.258γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
CNSrefinement
PDB_EXTRACTdata extraction

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

  • Deposited Date: 2006-01-30 
  • Released Date: 2006-07-04 
  • Deposition Author(s): Orth, P., Niu, X.

Revision History  (Full details and data files)

  • Version 1.0: 2006-07-04
    Type: Initial release
  • Version 1.1: 2008-05-01
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2017-10-18
    Changes: Refinement description