1Y3X

TRYPSIN INHIBITOR COMPLEX


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.70 Å
  • R-Value Free: 0.204 
  • R-Value Work: 0.152 
  • R-Value Observed: 0.152 

Starting Model: experimental
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wwPDB Validation   3D Report Full Report


Ligand Structure Quality Assessment 


This is version 1.5 of the entry. See complete history


Literature

A simple protocol to estimate differences in protein binding affinity for enantiomers without prior resolution of racemates.

Fokkens, J.Klebe, G.

(2006) Angew Chem Int Ed Engl 45: 985-989


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Trypsinogen, cationic223Bos taurusMutation(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
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  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
UIB
Query on UIB

Download Ideal Coordinates CCD File 
C [auth A](1R,3AS,4R,8AS,8BR)-4-{5-(PHENYL[1,3]DIOXOL-5-YLMETHYL)-4-ETHYL-2,3,3-TRIMETHYL-6-OXO-OCTAHYDRO-PYRROLO[3,4-C]PYRROL-1-YL}-BENZAMIDINE
C26 H32 N4 O3
HQVPEQYGMUJQHM-MSYGRNIXSA-N
CA
Query on CA

Download Ideal Coordinates CCD File 
B [auth A]CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
Binding Affinity Annotations 
IDSourceBinding Affinity
UIB PDBBind:  1Y3X Ki: 7315 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.70 Å
  • R-Value Free: 0.204 
  • R-Value Work: 0.152 
  • R-Value Observed: 0.152 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 63.25α = 90
b = 69.3β = 90
c = 63.91γ = 90
Software Package:
Software NamePurpose
SHELXL-97refinement
CNSrefinement
CRYSTALdata reduction
CrystalCleardata scaling
CNSphasing

Structure Validation

View Full Validation Report



Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2005-12-06
    Type: Initial release
  • Version 1.1: 2008-04-30
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2017-10-11
    Changes: Refinement description
  • Version 1.4: 2019-07-24
    Changes: Data collection, Refinement description
  • Version 1.5: 2023-08-23
    Changes: Data collection, Database references, Derived calculations, Refinement description