3M1D

Structure of BIR1 from cIAP1


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.232 
  • R-Value Work: 0.196 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Asymmetric recruitment of cIAPs by TRAF2

Mace, P.D.Smits, C.Vaux, D.L.Silke, J.Day, C.L.

(2010) J.Mol.Biol. 400: 8-15

  • DOI: 10.1016/j.jmb.2010.04.055

  • PubMed Abstract: 
  • Cellular inhibitor of apoptosis protein (cIAP) 1 and cIAP2 set the balance between transcription factor and apoptosis signaling downstream of tumor necrosis factor (TNF) receptor superfamily members by acting as ubiquitin E3 ligases for substrates th ...

    Cellular inhibitor of apoptosis protein (cIAP) 1 and cIAP2 set the balance between transcription factor and apoptosis signaling downstream of tumor necrosis factor (TNF) receptor superfamily members by acting as ubiquitin E3 ligases for substrates that are part of the TNF receptor complex. To fulfill this role, cIAPs must be recruited to the receptor complex by TNF-receptor-associated factor (TRAF) 2. In this study, we reconstituted the complex between baculoviral IAP repeat (BIR) 1 of cIAP1 and the coiled-coil region of TRAF2, solved the structure of BIR1 from cIAP1, and mapped key binding residues on each molecule using mutagenesis. Biophysical analysis indicates that a single BIR1 domain binds the trimeric TRAF2 coiled-coil domain. This suggests that only one IAP molecule binds to each TRAF trimer and makes it likely that the dimeric cIAPs crosslink two TRAF trimers.


    Organizational Affiliation

    Department of Biochemistry, University of Otago, Dunedin 9054, New Zealand.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Baculoviral IAP repeat-containing protein 2
A, B
85Homo sapiensMutation(s): 0 
Gene Names: BIRC2 (API1, MIHB, RNF48)
EC: 2.3.2.27
Find proteins for Q13490 (Homo sapiens)
Go to Gene View: BIRC2
Go to UniProtKB:  Q13490
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

Download SDF File 
Download CCD File 
A, B
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.232 
  • R-Value Work: 0.196 
  • Space Group: I 41 2 2
Unit Cell:
Length (Å)Angle (°)
a = 59.180α = 90.00
b = 59.180β = 90.00
c = 199.620γ = 90.00
Software Package:
Software NamePurpose
PHASERphasing
PHENIXrefinement
CrystalCleardata collection
XDSdata reduction
SCALAdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 2010-03-04 
  • Released Date: 2010-05-26 
  • Deposition Author(s): Mace, P.D., Day, C.L.

Revision History 

  • Version 1.0: 2010-05-26
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance
  • Version 1.2: 2014-03-05
    Type: Database references