2L9M

Structure of cIAP1 CARD


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 256 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the least restraint violations 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

CARD-mediated autoinhibition of cIAP1's E3 ligase activity suppresses cell proliferation and migration.

Lopez, J.John, S.W.Tenev, T.Rautureau, G.J.Hinds, M.G.Francalanci, F.Wilson, R.Broemer, M.Santoro, M.M.Day, C.L.Meier, P.

(2011) Mol.Cell 42: 569-583

  • DOI: 10.1016/j.molcel.2011.04.008

  • PubMed Abstract: 
  • E3 ligases mediate the covalent attachment of ubiquitin to target proteins thereby enabling ubiquitin-dependent signaling. Unraveling how E3 ligases are regulated is important because miscontrolled ubiquitylation can lead to disease. Cellular inhibit ...

    E3 ligases mediate the covalent attachment of ubiquitin to target proteins thereby enabling ubiquitin-dependent signaling. Unraveling how E3 ligases are regulated is important because miscontrolled ubiquitylation can lead to disease. Cellular inhibitor of apoptosis (cIAP) proteins are E3 ligases that modulate diverse biological processes such as cell survival, proliferation, and migration. Here, we have solved the structure of the caspase recruitment domain (CARD) of cIAP1 and identified that it is required for cIAP1 autoregulation. We demonstrate that the CARD inhibits activation of cIAP1's E3 activity by preventing RING dimerization, E2 binding, and E2 activation. Moreover, we show that the CARD is required to suppress cell proliferation and migration. Further, CARD-mediated autoregulation is also necessary to maximally suppress caspase-8-dependent apoptosis and vascular tree degeneration in vivo. Taken together, our data reveal mechanisms by which the E3 ligase activity of cIAP1 is controlled, and how its deregulation impacts on cell proliferation, migration and cell survival.


    Organizational Affiliation

    Chester Beatty Laboratories, The Breakthrough Toby Robins Breast Cancer Research Centre, Institute of Cancer Research, Mary-Jean Mitchell Green Building, Fulham Road, London SW3 6JB, UK.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Baculoviral IAP repeat-containing protein 2
A
132Homo sapiensGene Names: BIRC2 (API1, IAP2, MIHB, RNF48)
EC: 6.3.2.-
Find proteins for Q13490 (Homo sapiens)
Go to Gene View: BIRC2
Go to UniProtKB:  Q13490
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 256 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the least restraint violations 
  • Olderado: 2L9M Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2011-08-17
    Type: Initial release