1QTN

CRYSTAL STRUCTURE OF THE COMPLEX OF CASPASE-8 WITH THE TETRAPEPTIDE INHIBITOR ACE-IETD-ALDEHYDE


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.2 Å
  • R-Value Free: 0.188 
  • R-Value Work: 0.143 

wwPDB Validation 3D Report Full Report


This is version 1.4 of the entry. See complete history

Literature

The atomic-resolution structure of human caspase-8, a key activator of apoptosis.

Watt, W.Koeplinger, K.A.Mildner, A.M.Heinrikson, R.L.Tomasselli, A.G.Watenpaugh, K.D.

(1999) Structure Fold.Des. 7: 1135-1143


  • PubMed Abstract: 
  • Caspases are a family of cysteine proteases that have important intracellular roles in inflammation and apoptosis. Caspase-8 activates downstream caspases which are unable to carry out autocatalytic processing and activation. Caspase-8 is designated ...

    Caspases are a family of cysteine proteases that have important intracellular roles in inflammation and apoptosis. Caspase-8 activates downstream caspases which are unable to carry out autocatalytic processing and activation. Caspase-8 is designated as an initiator caspase and is believed to sit at the apex of the Fas- or TNF-mediated apoptotic cascade. In view of this role, the enzyme is an attractive target for the design of inhibitors aimed at blocking the undesirable cell death associated with a range of degenerative disorders.


    Organizational Affiliation

    Structural, Analytical & Medicinal Chemistry Pharmacia & Upjohn Inc. 301 Henrietta Street, Kalamazoo, MI 49007, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
CASPASE-8
A
164Homo sapiensMutation(s): 0 
Gene Names: CASP8 (MCH5)
EC: 3.4.22.61
Find proteins for Q14790 (Homo sapiens)
Go to Gene View: CASP8
Go to UniProtKB:  Q14790
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
CASPASE-8
B
95Homo sapiensMutation(s): 0 
Gene Names: CASP8 (MCH5)
EC: 3.4.22.61
Find proteins for Q14790 (Homo sapiens)
Go to Gene View: CASP8
Go to UniProtKB:  Q14790
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
ACETYL-ILE-GLU-THR-ASP-ALDEHYDE
C
5N/AMutation(s): 0 
Protein Feature View is not available: No corresponding UniProt sequence found.
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
DTD
Query on DTD

Download SDF File 
Download CCD File 
A, B
DITHIANE DIOL
C4 H8 O2 S2
YPGMOWHXEQDBBV-IMJSIDKUSA-N
 Ligand Interaction
Biologically Interesting Molecules 1 Unique
IDChainsNameType/Class2D Diagram3D Interactions
PRD_000301
Query on PRD_000301
CN-(2-oxoethyl)-L-isoleucyl-L-alpha-glutamyl-N-[(1R)-2-carboxy-1-formylethyl]-L-threoninamidePeptide-like / Inhibitor

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Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.2 Å
  • R-Value Free: 0.188 
  • R-Value Work: 0.143 
  • Space Group: P 31 2 1
Unit Cell:
Length (Å)Angle (°)
a = 62.400α = 90.00
b = 62.400β = 90.00
c = 129.250γ = 120.00
Software Package:
Software NamePurpose
SHELXL-97refinement
AMoREphasing
SAINTdata scaling
SMARTdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2000-09-20
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Atomic model, Database references, Derived calculations, Non-polymer description, Structure summary, Version format compliance
  • Version 1.3: 2012-04-04
    Type: Structure summary
  • Version 1.4: 2012-12-12
    Type: Other