1PPH

GEOMETRY OF BINDING OF THE NALPHA-TOSYLATED PIPERIDIDES OF M-AMIDINO-, P-AMIDINO-AND P-GUANIDINO PHENYLALANINE TO THROMBIN AND TRYPSIN: X-RAY CRYSTAL STRUCTURES OF THEIR TRYPSIN COMPLEXES AND MODELING OF THEIR THROMBIN COMPLEXES


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Work: 0.167 
  • R-Value Observed: 0.167 

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This is version 1.3 of the entry. See complete history


Literature

Geometry of binding of the N alpha-tosylated piperidides of m-amidino-, p-amidino- and p-guanidino phenylalanine to thrombin and trypsin. X-ray crystal structures of their trypsin complexes and modeling of their thrombin complexes.

Turk, D.Sturzebecher, J.Bode, W.

(1991) FEBS Lett 287: 133-138

  • DOI: https://doi.org/10.1016/0014-5793(91)80033-y
  • Primary Citation of Related Structures:  
    1PPH

  • PubMed Abstract: 

    The X-ray crystal structures of the complexes formed with bovine trypsin and the N alpha-tosylated piperidides of m-amidino-, p-amidino- and p-guanidino-D,L-phenylalanine (3-TAPAP, 4-TAPAP and 4-TGPAP) were determined with data to 1.8 A resolution. The L-stereoisomer of 3-TAPAP binds as a compact entity into the active site of trypsin, with the amidino and the carbonyl groups of the central amidinophenylalanyl residue hydrogen-bonded to Gly216 of trypsin. According to modeling and energy minimization, 3-TAPAP fits perfectly in this conformation to the more restrictive thrombin active site also (Bajusz et al. (1978) Int. J. Pept. Prot. Res. 12, 217-221); the piperidine moiety extends into the cage-like S2 subsite of thrombin, but leaves room for additional substituents which might help to improve binding and pharmacological properties. In contrast, 4-TAPAP and 4-TGPAP bind only weakly and in an extended conformation to trypsin; their considerably enhanced affinities for thrombin would suggest a more compact binding to thrombin.


  • Organizational Affiliation

    Max-Planck-Institut für Biochemie, Martinsried, Germany.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
TRYPSINA [auth E]223Sus scrofaMutation(s): 0 
EC: 3.4.21.4
UniProt
Find proteins for P00760 (Bos taurus)
Explore P00760 
Go to UniProtKB:  P00760
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP00760
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Ligands 3 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
0ZG
Query on 0ZG

Download Ideal Coordinates CCD File 
D [auth E]3-[(2S)-2-{[(4-methylphenyl)sulfonyl]amino}-3-oxo-3-piperidin-1-ylpropyl]benzenecarboximidamide
C22 H28 N4 O3 S
RNNMXTSTLVYYQG-FQEVSTJZSA-N
SO4
Query on SO4

Download Ideal Coordinates CCD File 
C [auth E]SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
CA
Query on CA

Download Ideal Coordinates CCD File 
B [auth E]CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
Binding Affinity Annotations 
IDSourceBinding Affinity
0ZG Binding MOAD:  1PPH Ki: 1200 (nM) from 1 assay(s)
BindingDB:  1PPH Ki: 1.00e+14 (nM) from 1 assay(s)
Biologically Interesting Molecules (External Reference) 1 Unique
Entity ID: 4
IDChains NameType/Class2D Diagram3D Interactions
PRD_000374 (0ZG)
Query on PRD_000374
D [auth E]4-TAPAPPeptide-like / Inhibitor
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.90 Å
  • R-Value Work: 0.167 
  • R-Value Observed: 0.167 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 63.51α = 90
b = 69.19β = 90
c = 63.81γ = 90
Software Package:
Software NamePurpose
X-PLORmodel building
X-PLORrefinement
X-PLORphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1994-01-31
    Type: Initial release
  • Version 1.1: 2008-05-22
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Atomic model, Database references, Derived calculations, Non-polymer description, Structure summary, Version format compliance
  • Version 1.3: 2012-12-12
    Changes: Other