2MQS | pdb_00002mqs

Transient Collagen Triple Helix Binding to a Key Metalloproteinase in Invasion and Development: Spin Labels to Structure

• PDB DOI: https://doi.org/10.2210/pdb2MQS/pdb
• BMRB: 25048

• Classification: HYDROLASE
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2014-06-26 Released: 2015-02-11 
• Deposition Author(s): Zhao, Y., Marcink, T., Van Doren, S.R.

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 200 
• Conformers Submitted: 15 
• Selection Criteria: structures with the lowest energy 

Literature

Transient collagen triple helix binding to a key metalloproteinase in invasion and development.

Zhao, Y., Marcink, T.C., Sanganna Gari, R.R., Marsh, B.P., King, G.M., Stawikowska, R., Fields, G.B., Van Doren, S.R.

(2015) Structure 23: 257-269

• PubMed: 25651059 
• DOI: https://doi.org/10.1016/j.str.2014.11.021
• Primary Citation Related Structures: 
  2MQS


• PubMed Abstract: 
  

  Skeletal development and invasion by tumor cells depends on proteolysis of collagen by the pericellular metalloproteinase MT1-MMP. Its hemopexin-like (HPX) domain binds to collagen substrates to facilitate their digestion. Spin labeling and paramagnetic nuclear magnetic resonance (NMR) detection have revealed how the HPX domain docks to collagen I-derived triple helix. Mutations impairing triple-helical peptidase activity corroborate the interface. Saturation transfer difference NMR suggests rotational averaging around the longitudinal axis of the triple-helical peptide. Part of the interface emerges as unique and potentially targetable for selective inhibition. The triple helix crosses the junction of blades I and II at a 45° angle to the symmetry axis of the HPX domain, placing the scissile Gly∼Ile bond near the HPX domain and shifted ∼25 Å from MMP-1 complexes. This raises the question of the MT1-MMP catalytic domain folding over the triple helix during catalysis, a possibility accommodated by the flexibility between domains suggested by atomic force microscopy images.

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Organizational Affiliation: 
• Department of Biochemistry, University of Missouri, 117 Schweitzer Hall, Columbia, MO 65211, USA.
Department of Physics and Astronomy, University of Missouri, Columbia, MO 65211, USA.
Department of Biochemistry, University of Missouri, 117 Schweitzer Hall, Columbia, MO 65211, USA; Department of Physics and Astronomy, University of Missouri, Columbia, MO 65211, USA.
Torrey Pines Institute for Molecular Studies, 11350 Southwest Village Parkway, Port Saint Lucie, FL 34987, USA.
Department of Biochemistry, University of Missouri, 117 Schweitzer Hall, Columbia, MO 65211, USA. Electronic address: [e-mail].

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 4-mer - A3B1 

Biological assembly 1 assigned by authors and generated by PISA (software)

Macromolecule Content 

• Total Structure Weight: 32.74 kDa 
• Atom Count: 2,315 
• Modeled Residue Count: 301 
• Deposited Residue Count: 301 
• Unique protein chains: 3

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Matrix metalloproteinase-14	A	196	Homo sapiens	Mutation(s): 0  Gene Names: MMP14 EC: 3.4.24.80
UniProt & NIH Common Fund Data Resources
Find proteins for P50281 (Homo sapiens) Explore P50281  Go to UniProtKB:  P50281
PHAROS:  P50281 GTEx:  ENSG00000157227

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
THP_L_and_M_chain	B, C	36	N/A	Mutation(s): 0

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
THP_T_chain	D	33	N/A	Mutation(s): 0

Small Molecules

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
HYP	B, C	L-PEPTIDE LINKING	C5 H9 N O3		PRO

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 200 
• Conformers Submitted: 15 
• Selection Criteria: structures with the lowest energy 

Structure Validation

Entry History 

Deposition Data

• Released Date: 2015-02-11 
Deposition Author(s): Zhao, Y., Marcink, T., Van Doren, S.R.

Revision History  

• Version 1.0: 2015-02-11
  Type: Initial release
  
• Version 1.1: 2018-10-10
  Changes: Data collection, Database references, Structure summary
• Version 1.2: 2023-06-14
  Changes: Data collection, Database references, Derived calculations, Other, Structure summary