1DX5

Crystal structure of the thrombin-thrombomodulin complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.241 
  • R-Value Work: 0.200 

wwPDB Validation 3D Report Full Report


This is version 2.0 of the entry. See complete history

Literature

Structural Basis for the Anticoagulant Activity of the Thrombin-Thrombomodulin Complex

Fuentes-Prior, P.Iwanaga, Y.Huber, R.Pagila, R.Rumennik, G.Seto, M.Morser, J.Light, D.R.Bode, W.

(2000) Nature 404: 518

  • DOI: 10.1038/35006683
  • Also Cited By: 5TO3

  • PubMed Abstract: 
  • The serine proteinase alpha-thrombin causes blood clotting through proteolytic cleavage of fibrinogen and protease-activated receptors and amplifies its own generation by activating the essential clotting factors V and VIII. Thrombomodulin, a transme ...

    The serine proteinase alpha-thrombin causes blood clotting through proteolytic cleavage of fibrinogen and protease-activated receptors and amplifies its own generation by activating the essential clotting factors V and VIII. Thrombomodulin, a transmembrane thrombin receptor with six contiguous epidermal growth factor-like domains (TME1-6), profoundly alters the substrate specificity of thrombin from pro- to anticoagulant by activating protein C. Activated protein C then deactivates the coagulation cascade by degrading activated factors V and VIII. The thrombin-thrombomodulin complex inhibits fibrinolysis by activating the procarboxypeptidase thrombin-activatable fibrinolysis inhibitor. Here we present the 2.3 A crystal structure of human alpha-thrombin bound to the smallest thrombomodulin fragment required for full protein-C co-factor activity, TME456. The Y-shaped thrombomodulin fragment binds to thrombin's anion-binding exosite-I, preventing binding of procoagulant substrates. Thrombomodulin binding does not seem to induce marked allosteric structural rearrangements at the thrombin active site. Rather, docking of a protein C model to thrombin-TME456 indicates that TME45 may bind substrates in such a manner that their zymogen-activation cleavage sites are presented optimally to the unaltered thrombin active site.


    Organizational Affiliation

    Max-Planck-Institut für Biochemie, Martinsried, Germany. fuentes@biochem.mpg.de




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Thrombin light chain
A, B, C, D
36Homo sapiensMutation(s): 0 
Gene Names: F2
EC: 3.4.21.5
Find proteins for P00734 (Homo sapiens)
Go to Gene View: F2
Go to UniProtKB:  P00734
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Thrombomodulin
I, J, K, L
118Homo sapiensMutation(s): 0 
Gene Names: THBD (THRM)
Find proteins for P07204 (Homo sapiens)
Go to Gene View: THBD
Go to UniProtKB:  P07204
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
Thrombin heavy chain
M, N, O, P
259Homo sapiensMutation(s): 0 
Gene Names: F2
EC: 3.4.21.5
Find proteins for P00734 (Homo sapiens)
Go to Gene View: F2
Go to UniProtKB:  P00734
Small Molecules
Ligands 5 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NA
Query on NA

Download SDF File 
Download CCD File 
I, J, K, L, M, N, O, P
SODIUM ION
Na
FKNQFGJONOIPTF-UHFFFAOYSA-N
 Ligand Interaction
FMT
Query on FMT

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Download CCD File 
I, J, K, L, P
FORMIC ACID
C H2 O2
BDAGIHXWWSANSR-UHFFFAOYSA-N
 Ligand Interaction
CA
Query on CA

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Download CCD File 
I, J, K, L
CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
 Ligand Interaction
0GJ
Query on 0GJ

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Download CCD File 
M, N, O, P
L-alpha-glutamyl-N-{(1S)-4-{[amino(iminio)methyl]amino}-1-[(1S)-2-chloro-1-hydroxyethyl]butyl}glycinamide
C14 H28 Cl N6 O5
XELWNHKFCNMWQO-LPEHRKFASA-O
 Ligand Interaction
NAG
Query on NAG

Download SDF File 
Download CCD File 
M, N, O, P
N-ACETYL-D-GLUCOSAMINE
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
 Ligand Interaction
Biologically Interesting Molecules 1 Unique
IDChainsNameType/Class2D Diagram3D Interactions
PRD_000288 (0GJ)
Query on PRD_000288
M,N,O,PGLU-GLY-ARG-CHLOROMETHYL KETONEPeptide-like / Inhibitor

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Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Free: 0.241 
  • R-Value Work: 0.200 
  • Space Group: H 3
Unit Cell:
Length (Å)Angle (°)
a = 214.400α = 90.00
b = 214.400β = 90.00
c = 131.410γ = 120.00
Software Package:
Software NamePurpose
X-PLORphasing
MOSFLMdata reduction
SCALAdata scaling
X-PLORrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2000-04-10
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Atomic model, Database references, Derived calculations, Non-polymer description, Structure summary, Version format compliance
  • Version 1.2: 2016-12-21
    Type: Advisory, Atomic model, Derived calculations, Non-polymer description, Other, Source and taxonomy
  • Version 2.0: 2018-06-27
    Type: Advisory, Atomic model, Data collection, Database references, Derived calculations, Non-polymer description, Polymer sequence, Source and taxonomy, Structure summary