3VXE

Human alpha-thrombin-Bivalirudin complex at PD5.0


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.25 Å
  • R-Value Free: 0.178 
  • R-Value Observed: 0.144 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Neutron and X-ray crystallographic analysis of the human alpha-thrombin-bivalirudin complex at pD 5.0: protonation states and hydration structure of the enzyme-product complex

Yamada, T.Kurihara, K.Ohnishi, Y.Tamada, T.Tomoyori, K.Masumi, K.Tanaka, I.Kuroki, R.Niimura, N.

(2013) Biochim Biophys Acta 1834: 1532-1538

  • DOI: 10.1016/j.bbapap.2013.05.014
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • The protonation states and hydration structures of the α-thrombin-bivalirudin complex were studied by joint XN refinement of the single crystal X-ray and neutron diffraction data at resolutions of 1.6 and 2.8Å, respectively. The atomic distances were ...

    The protonation states and hydration structures of the α-thrombin-bivalirudin complex were studied by joint XN refinement of the single crystal X-ray and neutron diffraction data at resolutions of 1.6 and 2.8Å, respectively. The atomic distances were estimated by carrying out X-ray crystallographic analysis at 1.25Å resolution. The complex represents a model of the enzyme-product (EP) complex of α-thrombin. The neutron scattering length maps around the active site suggest that the side chain of H57/H was deuterated. The joint XN refinement showed that occupancies for Dδ1 and Dε2 of H57/H were 1.0 and 0.7, respectively. However, no significant neutron scattering length density was observed around the hydroxyl oxygen Oγ of S195/H, which was close to the carboxylic carbon atom of dFPR-COOH. These observations suggest that the Oγ atom of S195/H is deprotonated and maintains its nucleophilicity in the EP complex. In addition to the active site, the hydration structures of the S1 subsite and the Exosite I, which are involved in the recognition of bivalirudin, are presented.


    Organizational Affiliation

    Ibaraki University, Tokai, Ibaraki, Japan. taro@mx.ibaraki.ac.jp



Macromolecules

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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Thrombin light chainL36Homo 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
Protein Feature View
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  • Reference Sequence

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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Thrombin heavy chainH259Homo 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
Protein Feature View
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  • Reference Sequence
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
BIVALIRUDINJ17N/AMutation(s): 0 
Find proteins for P28504 (Hirudo medicinalis)
Explore P28504 
Go to UniProtKB:  P28504
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  • Reference Sequence
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Entity ID: 4
MoleculeChainsSequence LengthOrganismDetails
BIVALIRUDINI3N/AMutation(s): 0 
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NAG
Query on NAG

Download CCD File 
H
2-acetamido-2-deoxy-beta-D-glucopyranose
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
 Ligand Interaction
Biologically Interesting Molecules 2 Unique
IDChainsNameType/Class2D Diagram3D Interactions
PRD_001145
Query on PRD_001145
JBIVALIRUDIN N-terminus fragmentP /  Thrombin inhibitor

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PRD_001148
Query on PRD_001148
IBIVALIRUDIN C-terminus fragmentP /  Thrombin inhibitor

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Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.25 Å
  • R-Value Free: 0.178 
  • R-Value Observed: 0.144 
  • Space Group: P 21 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 79.787α = 90
b = 106.618β = 90
c = 45.574γ = 90
Software Package:
Software NamePurpose
SHELXL-97refinement
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-09-04
    Type: Initial release
  • Version 1.1: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Data collection, Derived calculations, Structure summary