3K65

Crystal Structure of Prethombin-2/Fragment-2 Complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.85 Å
  • R-Value Free: 0.229 
  • R-Value Work: 0.213 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Structural transitions during prothrombin activation: On the importance of fragment 2.

Adams, T.E.Huntington, J.A.

(2016) Biochimie 122: 235-242

  • DOI: 10.1016/j.biochi.2015.09.013

  • PubMed Abstract: 
  • Prothrombin is activated to thrombin by the prothrombinase complex through sequential cleavage at two distinct sites. This occurs at sites of vascular injury in a highly regulated cascade of serine protease and cofactor activation, where activated pl ...

    Prothrombin is activated to thrombin by the prothrombinase complex through sequential cleavage at two distinct sites. This occurs at sites of vascular injury in a highly regulated cascade of serine protease and cofactor activation, where activated platelets provide a suitable surface for protease/cofactor/substrate assembly. The precise structural and conformational changes undergone during the transition from prothrombin to thrombin have been studied for decades, and several structures of prothrombin fragments along the activation pathway have been solved. Here we present a new structure analyzed in context of other recent structures and biochemical studies. What emerges is an unexpected mechanism that involves a change in the mode of binding of the F2 domain (fragment 2) on the catalytic domain after cleavage at Arg320, and a subsequent reorientation of the linker between the F2 and catalytic domain to present the Arg271 site for cleavage.


    Organizational Affiliation

    Cambridge Institute for Medical Research, Department of Haematology, University of Cambridge, Wellcome Trust/MRC Building, Hills Road, Cambridge, CB2 0XY, United Kingdom.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Prothrombin
A
116Homo 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
Prothrombin
B
308Homo sapiensMutation(s): 1 
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 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
BU1
Query on BU1

Download SDF File 
Download CCD File 
A
1,4-BUTANEDIOL
C4 H10 O2
WERYXYBDKMZEQL-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.85 Å
  • R-Value Free: 0.229 
  • R-Value Work: 0.213 
  • Space Group: P 41 21 2
Unit Cell:
Length (Å)Angle (°)
a = 73.530α = 90.00
b = 73.530β = 90.00
c = 205.880γ = 90.00
Software Package:
Software NamePurpose
PDB_EXTRACTdata extraction
PHASERphasing
MOSFLMdata reduction
SCALAdata scaling
DNAdata collection
CNSrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2010-09-29
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance
  • Version 1.2: 2013-09-25
    Type: Derived calculations
  • Version 1.3: 2017-07-05
    Type: Database references