3M0A

Crystal structure of TRAF2:cIAP2 complex

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.61 Å
  • R-Value Free: 0.268 
  • R-Value Work: 0.227 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history. 


Literature

Crystal structures of the TRAF2: cIAP2 and the TRAF1: TRAF2: cIAP2 complexes: affinity, specificity, and regulation.

Zheng, C., Kabaleeswaran, V., Wang, Y., Cheng, G., Wu, H.

(2010) Mol Cell 38: 101-113

  • DOI: 10.1016/j.molcel.2010.03.009
  • Primary Citation of Related Structures:  
    3M0A, 3M0D, 3M06

  • PubMed Abstract: 

    • TRAF1/2 and cIAP1/2 are members of the TNF receptor-associated factor (TRAF) and the inhibitor of apoptosis (IAP) families, respectively. They are critical for canonical and noncanonical NF-kappaB signaling pathways. Here, we report the crystal structures of the TRAF2: cIAP2 and the TRAF1: TRAF2: cIAP2 complexes ...

    TRAF1/2 and cIAP1/2 are members of the TNF receptor-associated factor (TRAF) and the inhibitor of apoptosis (IAP) families, respectively. They are critical for canonical and noncanonical NF-kappaB signaling pathways. Here, we report the crystal structures of the TRAF2: cIAP2 and the TRAF1: TRAF2: cIAP2 complexes. A TRAF2 trimer interacts with one cIAP2 both in the crystal and in solution. Two chains of the TRAF2 trimer directly contact cIAP2, and key residues at the interface are confirmed by mutagenesis. TRAF1 and TRAF2 preferentially form the TRAF1: (TRAF2)(2) heterotrimer, which interacts with cIAP2 more strongly than TRAF2 alone. In contrast, TRAF1 alone interacts very weakly with cIAP2. Surprisingly, TRAF1 and one chain of TRAF2 in the TRAF1: (TRAF2)(2): cIAP2 ternary complex mediate interaction with cIAP2. Because TRAF1 is upregulated by many stimuli, it may modulate the interaction of TRAF2 with cIAP1/2, which explains regulatory roles of TRAF1 in TNF signaling.

    Organizational Affiliation: 

    Weill Medical College, Cornell University, New York, NY 10021, USA.



Macromolecules
Find similar proteins by: 
(by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
TNF receptor-associated factor 2 A, B, C66Homo sapiensMutation(s): 0 
Gene Names: TRAF2, TRAP3
EC: 2.3.2.27
Find proteins for Q12933 (Homo sapiens)
Explore Q12933 
Go to UniProtKB:  Q12933
NIH Common Fund Data Resources
PHAROS:  Q12933
GTEx:  ENSG00000127191
Protein Feature View
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  • Reference Sequence
Find similar proteins by: 
(by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Baculoviral IAP repeat-containing protein 3 D75Homo sapiensMutation(s): 0 
Gene Names: BIRC3, API2, IAP1, MIHC, RNF49
EC: 2.3.2.27
Find proteins for Q13489 (Homo sapiens)
Explore Q13489 
Go to UniProtKB:  Q13489
NIH Common Fund Data Resources
PHAROS:  Q13489
GTEx:  ENSG00000023445
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN
Download Ideal Coordinates CCD File 
D
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N		 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.61 Å
  • R-Value Free: 0.268 
  • R-Value Work: 0.227 
  • Space Group: I 41
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 92.123α = 90
b = 92.123β = 90
c = 85.971γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
HKL-2000data reduction
SCALEPACKdata scaling
SOLVEphasing

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2010-04-28
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2015-07-29
    Changes: Structure summary