3UTU

High affinity inhibitor of human thrombin

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.55 Å
  • R-Value Free: 0.271 
  • R-Value Work: 0.217 
  • R-Value Observed: 0.244 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history. 


Literature

Beyond heparinization: design of highly potent thrombin inhibitors suitable for surface coupling

Steinmetzer, T., Baum, B., Biela, A., Klebe, G., Nowak, G., Bucha, E.

(2012) ChemMedChem 7: 1965-1973

  • DOI: 10.1002/cmdc.201200292
  • Primary Citation of Related Structures:  
    3UTU

  • PubMed Abstract: 

    • During extracorporeal circulation, when blood comes in contact with artificial surfaces, patients receive a standard treatment with anticoagulants to avoid blood coagulation. Dialysis patients in particular are systemically treated with heparin up to fou ...

    During extracorporeal circulation, when blood comes in contact with artificial surfaces, patients receive a standard treatment with anticoagulants to avoid blood coagulation. Dialysis patients in particular are systemically treated with heparin up to four times a week, causing a high burden for the body. For potential anticoagulant modification of external materials, such as dialysis equipment, a series of highly potent thrombin inhibitors was developed. All inhibitors share the general formula arylsulfonyl-P3-Pro-4-amidinobenzylamide, where P3 is glycyl or a trifunctional amino acid residue in L-configuration. Among this series, several derivatives inhibit thrombin with Ki values of less than 1 nM. Specificity measurements revealed that this inhibitor type is highly specific for thrombin with negligible activity against related trypsin-like serine proteases. X-ray analysis of the most potent analogue in complex with thrombin demonstrated that the N-terminal arylsulfonyl group occupies the aryl binding site, whereas the P3 side chain is directed into the solvent and therefore is well suited for further coupling. Based on their in vitro profile, these inhibitors are suitable candidates for the development of hemocompatible materials with anticoagulant properties.

    Organizational Affiliation: 

    Institute of Pharmaceutical Chemistry, Philipps University, Marbacher Weg 6, 35032 Marburg (Germany). steinmetzer@staff.uni-marburg.de.



Macromolecules
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(by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Thrombin light chain L36Homo sapiensMutation(s): 0 
Gene Names: F2
EC: 3.4.21.5
Find proteins for P00734 (Homo sapiens)
Explore P00734 
Go to UniProtKB:  P00734
NIH Common Fund Data Resources
PHAROS:  P00734
GTEx:  ENSG00000180210
Protein Feature View
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  • Reference Sequence
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(by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Thrombin heavy chain H259Homo sapiensMutation(s): 0 
Gene Names: F2
EC: 3.4.21.5
Find proteins for P00734 (Homo sapiens)
Explore P00734 
Go to UniProtKB:  P00734
NIH Common Fund Data Resources
PHAROS:  P00734
GTEx:  ENSG00000180210
Protein Feature View
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  • Reference Sequence
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
Hirudin variant-1 I11Hirudo medicinalisMutation(s): 0 
Find proteins for P01050 (Hirudo medicinalis)
Explore P01050 
Go to UniProtKB:  P01050
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
1TS
Query on 1TS
Download Ideal Coordinates CCD File 
H
(2S)-N-[(4-carbamimidoylphenyl)methyl]-1-[(2S)-2-[(3-chloro-4-methoxybenzene)sulfonamido]-3-{[(4-cyanophenyl)methyl]carbamoyl}propanoyl]pyrrolidine-2-carboxamide
C32 H34 Cl N7 O6 S
YNEVNNWCKYNFGX-SVBPBHIXSA-N		 Ligand Interaction
NA
Query on NA
Download Ideal Coordinates CCD File 
H
SODIUM ION
Na
FKNQFGJONOIPTF-UHFFFAOYSA-N		 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
TYS
Query on TYS		IL-PEPTIDE LINKINGC9 H11 N O6 STYR
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
1TSKi:  0.012000000104308128   nM  Binding MOAD
1TSKi :  0.012000000104308128   nM  PDBBind
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.55 Å
  • R-Value Free: 0.271 
  • R-Value Work: 0.217 
  • R-Value Observed: 0.244 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 70.77α = 90
b = 71.35β = 100.65
c = 72.39γ = 90
Software Package:
Software NamePurpose
HKL-2000data collection
SHELXmodel building
SHELXL-97refinement
HKL-2000data reduction
HKL-2000data scaling
SHELXphasing

Structure Validation

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View more in-depth experimental data

Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2012-08-29
    Type: Initial release
  • Version 1.1: 2012-12-12
    Changes: Other
  • Version 1.2: 2013-03-13
    Changes: Other
  • Version 1.3: 2014-03-12
    Changes: Database references