Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation   3D Report Full Report

This is version 1.3 of the entry. See complete history


Structure of the CAD domain of caspase-activated DNase and interaction with the CAD domain of its inhibitor.

Uegaki, K.Otomo, T.Sakahira, H.Shimizu, M.Yumoto, N.Kyogoku, Y.Nagata, S.Yamazaki, T.

(2000) J Mol Biol 297: 1121-1128

  • DOI: https://doi.org/10.1006/jmbi.2000.3643
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    Caspase-activated DNase (CAD), which causes a genome fragmentation at the final stage of apoptosis, is a protein of about 40 kDa and exists as a complex form with the inhibitor ICAD in living cells. There is sequence homology of about 80 amino acid residues at the N termini of CAD and ICAD (called the CAD domain). Here, we report the three-dimensional structure of the CAD domain of CAD determined by multi-dimensional NMR spectroscopy and the property of CAD domains investigated by a surface plasmon resonance experiment. The CAD domain of CAD is an independently folded domain composed of one alpha-helix and five beta-strands forming a single sheet. The overall structure is categorized in the ubiquitin superfold. This domain can bind strongly to the isolated CAD domain of ICAD (dissociation constant: 5.48(+/-0.003)x10(-8) M). It suggests the function of the CAD domains in the CAD-ICAD system, that the protein-protein interaction through the CAD domains plays an important role in the inhibition of CAD DNase activity and in the correct folding of CAD. On the basis of structural comparison with other protein complexes containing the ubiquitin superfold, the interaction mode of the CAD domains is proposed.

  • Organizational Affiliation

    Osaka National Research Institute, AIST, 1-8-31 Midorigaoka, Ikeda, Osaka, 563-8577, Japan.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
CASPASE-ACTIVATED DNASE90Mus musculusMutation(s): 0 
UniProt & NIH Common Fund Data Resources
Find proteins for O54788 (Mus musculus)
Explore O54788 
Go to UniProtKB:  O54788
IMPC:  MGI:1196287
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupO54788
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 

Structure Validation

View Full Validation Report

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2000-02-16
    Type: Initial release
  • Version 1.1: 2008-10-27
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2022-02-16
    Changes: Database references, Derived calculations