1VIT

THROMBIN:HIRUDIN 51-65 COMPLEX


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.2 Å
  • R-Value Work: 0.192 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structure of a bovine thrombin-hirudin51-65 complex determined by a combination of molecular replacement and graphics. Incorporation of known structural information in molecular replacement.

Vitali, J.Martin, P.D.Malkowski, M.G.Olsen, C.M.Johnson, P.H.Edwards, B.F.

(1996) Acta Crystallogr.,Sect.D 52: 453-464

  • DOI: 10.1107/S0907444996000364

  • PubMed Abstract: 
  • Crystals of the bovine thrombin-hirudins(51-65) complex have space group P6(1)22 with cell constants a = 116.4, and c = 200.6 A and two thrombin molecules in the asymmetric unit. Only one thrombin molecule could be located by generalized molecular re ...

    Crystals of the bovine thrombin-hirudins(51-65) complex have space group P6(1)22 with cell constants a = 116.4, and c = 200.6 A and two thrombin molecules in the asymmetric unit. Only one thrombin molecule could be located by generalized molecular replacement; the second was fit visually as a rigid body to an improved electron-density difference map. The structure was refined to R = 0.192 with two B values per residue (main chain and side chain) at 3.2 A. The polar interactions of the peptides with the exosite of thrombin show differences consistent with the known flexibility in the interactions of the C-terminal peptide of hirudin with thrombin. The hirudin peptide in complex 2 has a higher temperature factor as compared with peptide 1 which may be correlated partly with a larger number of short-range electrostatic interactions between peptide 1 and thrombin and partly with the fact that thrombin 2 is epsilon-thrombin which is cleaved at Thr149A near the peptide binding site. Later, using this structure as a test case, it was shown that the position for the second thrombin could also be determined by a novel modification of the molecular-replacement method in which the contribution of the known molecule is subtracted from the structure factors. This approach is facile and applicable to any crystal containing two or more macromolecules in the asymmetric unit in which some but not all of the molecules can be determined by molecular replacement.


    Organizational Affiliation

    Department of Biochemistry, Wayne State University, Detroit, MI 48201, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
EPSILON THROMBIN
L, M
49Bos taurusMutation(s): 0 
Gene Names: F2
EC: 3.4.21.5
Find proteins for P00735 (Bos taurus)
Go to Gene View: F2
Go to UniProtKB:  P00735
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
ALPHA THROMBIN
H
259Bos taurusMutation(s): 0 
Gene Names: F2
EC: 3.4.21.5
Find proteins for P00735 (Bos taurus)
Go to Gene View: F2
Go to UniProtKB:  P00735
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
HIRUDIN
I, J
15Hirudo medicinalisMutation(s): 0 
Find proteins for P28507 (Hirudo medicinalis)
Go to UniProtKB:  P28507
Entity ID: 4
MoleculeChainsSequence LengthOrganismDetails
EPSILON THROMBIN
F
150Bos taurusMutation(s): 0 
Gene Names: F2
EC: 3.4.21.5
Find proteins for P00735 (Bos taurus)
Go to Gene View: F2
Go to UniProtKB:  P00735
Entity ID: 5
MoleculeChainsSequence LengthOrganismDetails
EPSILON THROMBIN
G
109Bos taurusMutation(s): 0 
Gene Names: F2
EC: 3.4.21.5
Find proteins for P00735 (Bos taurus)
Go to Gene View: F2
Go to UniProtKB:  P00735
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NAG
Query on NAG

Download SDF File 
Download CCD File 
F, H
N-ACETYL-D-GLUCOSAMINE
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.2 Å
  • R-Value Work: 0.192 
  • Space Group: P 61 2 2
Unit Cell:
Length (Å)Angle (°)
a = 116.400α = 90.00
b = 116.400β = 90.00
c = 200.600γ = 120.00
Software Package:
Software NamePurpose
X-PLORrefinement
X-PLORmodel building
XENGENdata scaling
X-PLORphasing
XENGENdata collection
XENGENdata reduction

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1997-04-21
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Non-polymer description, Version format compliance