1GXD

proMMP-2/TIMP-2 complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.1 Å
  • R-Value Free: 0.333 
  • R-Value Work: 0.275 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structural Insight Into the Complex Formation of Latent Matrix Metalloproteinase 2 with Tissue Inhibitor of Metalloproteinase 2

Morgunova, E.Tuuttila, A.Bergmann, U.Tryggvason, K.

(2002) Proc.Natl.Acad.Sci.USA 99: 7414

  • DOI: 10.1073/pnas.102185399
  • Also Cited By: 3BA0

  • PubMed Abstract: 
  • Matrix metalloproteinases (MMPs) are a family of multidomain enzymes involved in the physiological degradation of connective tissue, as well as in pathological states such as tumor invasion and arthritis. Apart from transcriptional regulation, MMPs a ...

    Matrix metalloproteinases (MMPs) are a family of multidomain enzymes involved in the physiological degradation of connective tissue, as well as in pathological states such as tumor invasion and arthritis. Apart from transcriptional regulation, MMPs are controlled by proenzyme activation and a class of specific tissue inhibitors of metalloproteinases (TIMPs) that bind to the catalytic site. TIMP-2 is a potent inhibitor of MMPs, but it has also been implicated in a unique cell surface activation mechanism of latent MMP-2/gelatinase A/type IV collagenase (proMMP-2), through its binding to the hemopexin domain of proMMP-2 on the one hand and to a membrane-type MMP activator on the other. The present crystal structure of the human proMMP-2/TIMP-2 complex reveals an interaction between the hemopexin domain of proMMP-2 and the C-terminal domain of TIMP-2, leaving the catalytic site of MMP-2 and the inhibitory site of TIMP-2 distant and spatially isolated. The interfacial contact of these two proteins is characterized by two distinct binding regions composed of alternating hydrophobic and hydrophilic interactions. This unique structure provides information for how specificity for noninhibitory MMP/TIMP complex formation is achieved.


    Organizational Affiliation

    Division of Matrix Biology, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, S-171 77 Stockholm, Sweden.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
72 KDA TYPE IV COLLAGENASE
A, B
631Homo sapiensMutations: A375E
Gene Names: MMP2 (CLG4A)
EC: 3.4.24.24
Find proteins for P08253 (Homo sapiens)
Go to Gene View: MMP2
Go to UniProtKB:  P08253
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
METALLOPROTEINASE INHIBITOR 2
C, D
194Homo sapiensGene Names: TIMP2
Find proteins for P16035 (Homo sapiens)
Go to Gene View: TIMP2
Go to UniProtKB:  P16035
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

Download SDF File 
Download CCD File 
A, B
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
SO4
Query on SO4

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

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Download CCD File 
A, B
CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.1 Å
  • R-Value Free: 0.333 
  • R-Value Work: 0.275 
  • Space Group: C 2 2 21
Unit Cell:
Length (Å)Angle (°)
a = 75.696α = 90.00
b = 374.575β = 90.00
c = 191.000γ = 90.00
Software Package:
Software NamePurpose
SCALEPACKdata scaling
BLANCphasing
DENZOdata reduction
REFMACrefinement
FFFEARphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2002-07-09
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Advisory, Version format compliance