1TMT

CHANGES IN INTERACTIONS IN COMPLEXES OF HIRUDIN DERIVATIVES AND HUMAN ALPHA-THROMBIN DUE TO DIFFERENT CRYSTAL FORMS


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Work: 0.177 

wwPDB Validation 3D Report Full Report


This is version 1.4 of the entry. See complete history

Literature

Changes in interactions in complexes of hirudin derivatives and human alpha-thrombin due to different crystal forms.

Priestle, J.P.Rahuel, J.Rink, H.Tones, M.Grutter, M.G.

(1993) Protein Sci. 2: 1630-1642

  • DOI: 10.1002/pro.5560021009
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • The three-dimensional structures of D-Phe-Pro-Arg-chloromethyl ketone-inhibited thrombin in complex with Tyr-63-sulfated hirudin (ternary complex) and of thrombin in complex with the bifunctional inhibitor D-Phe-Pro-Arg-Pro-(Gly)4-hirudin (CGP 50,856 ...

    The three-dimensional structures of D-Phe-Pro-Arg-chloromethyl ketone-inhibited thrombin in complex with Tyr-63-sulfated hirudin (ternary complex) and of thrombin in complex with the bifunctional inhibitor D-Phe-Pro-Arg-Pro-(Gly)4-hirudin (CGP 50,856, binary complex) have been determined by X-ray crystallography in crystal forms different from those described by Skrzypczak-Jankun et al. (Skrzypczak-Jankun, E., Carperos, V.E., Ravichandran, K.G., & Tulinsky, A., 1991, J. Mol. Biol. 221, 1379-1393). In both complexes, the interactions of the C-terminal hirudin segments of the inhibitors binding to the fibrinogen-binding exosite of thrombin are clearly established, including residues 60-64, which are disordered in the earlier crystal form. The interactions of the sulfate group of Tyr-63 in the ternary complex structure explain why natural sulfated hirudin binds with a 10-fold lower K(i) than the desulfated recombinant material. In this new crystal form, the autolysis loop of thrombin (residues 146-150), which is disordered in the earlier crystal form, is ordered due to crystal contacts. Interactions between the C-terminal fragment of hirudin and thrombin are not influenced by crystal contacts in this new crystal form, in contrast to the earlier form. In the bifunctional inhibitor-thrombin complex, the peptide bond between Arg-Pro (P1-P1') seems to be cleaved.


    Related Citations: 
    • Refined Structure of the Hirudin-Thrombin Complex
      Rydel, T.J.,Tulinsky, A.,Bode, W.,Huber, R.
      (1991) J.Mol.Biol. 221: 583
    • Structure of the Hirugen and Hirulog Complexes of Alpha-Thrombin
      Skrzypczak-Jankun, E.,Carperos, V.E.,Ravichandran, K.G.,Tulinsky, A.
      (1991) J.Mol.Biol. 221: 1379
    • Crystal Structure of the Thrombin-Hirudin Complex: A Novel Mode of Serine Protease Inhibition
      Gruetter, M.G.,Priestle, J.P.,Rahuel, J.,Grossenbacher, H.,Bode, W.,Hofsteenge, J.,Stone, S.R.
      (1990) Embo J. 9: 2361
    • The Refined 1.9 Angstrom Crystal Structure of Human Alpha Thrombin: Interaction with D-Phe-Pro-Arg Chloromethylketone and Significance of the Tyr-Pro-Pro-Trp Insertion Segment
      Bode, W.,Mayr, I.,Baumann, U.,Huber, R.,Stone, S.R.,Hofsteenge, J.
      (1989) Embo J. 8: 3467


    Organizational Affiliation

    Department of Biotechnology, Ciba-Geigy Ltd., Basel, Switzerland.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
ALPHA-THROMBIN (SMALL SUBUNIT)
L
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
ALPHA-THROMBIN (LARGE SUBUNIT)
H
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
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
CGP 50,856 INHIBITOR, cleaved N-terminal tripeptide fragment, d-Phe-Pro-Arg
I
3Hirudo medicinalisMutation(s): 0 
Find proteins for P01050 (Hirudo medicinalis)
Go to UniProtKB:  P01050
Entity ID: 4
MoleculeChainsSequence LengthOrganismDetails
CGP 50,856 INHIBITOR, cleaved C-terminal hirudin fragment
J
18Hirudo medicinalisMutation(s): 0 
Find proteins for P28504 (Hirudo medicinalis)
Go to UniProtKB:  P28504
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NAG
Query on NAG

Download SDF File 
Download CCD File 
J
N-ACETYL-D-GLUCOSAMINE
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
 Ligand Interaction
Biologically Interesting Molecules 1 Unique
IDChainsNameType/Class2D Diagram3D Interactions
PRD_001148
Query on PRD_001148
IBIVALIRUDIN C-terminus fragmentPeptide-like / Thrombin inhibitor

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Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Work: 0.177 
  • Space Group: P 21 21 2
Unit Cell:
Length (Å)Angle (°)
a = 80.500α = 90.00
b = 107.100β = 90.00
c = 45.800γ = 90.00
Software Package:
Software NamePurpose
X-PLORrefinement
X-PLORphasing
X-PLORmodel building
TNTrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1994-09-30
    Type: Initial release
  • Version 1.1: 2008-03-03
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Atomic model, Database references, Derived calculations, Non-polymer description, Structure summary, Version format compliance
  • Version 1.3: 2016-11-09
    Type: Structure summary
  • Version 1.4: 2017-11-29
    Type: Derived calculations, Other