3M0D

Crystal structure of the TRAF1:TRAF2:cIAP2 complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.80 Å
  • R-Value Free: 0.247 
  • R-Value Work: 0.197 
  • R-Value Observed: 0.204 

wwPDB Validation   3D Report Full Report


This is version 1.1 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:  
    3M06, 3M0A, 3M0D

  • 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
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
TNF receptor-associated factor 2A, B66Homo sapiensMutation(s): 0 
Gene Names: TRAF2TRAP3
EC: 2.3.2.27
UniProt & NIH Common Fund Data Resources
Find proteins for Q12933 (Homo sapiens)
Explore Q12933 
Go to UniProtKB:  Q12933
PHAROS:  Q12933
GTEx:  ENSG00000127191 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ12933
Protein Feature View
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  • Reference Sequence
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
TNF receptor-associated factor 1C65Homo sapiensMutation(s): 0 
Gene Names: TRAF1EBI6
UniProt & NIH Common Fund Data Resources
Find proteins for Q13077 (Homo sapiens)
Explore Q13077 
Go to UniProtKB:  Q13077
PHAROS:  Q13077
GTEx:  ENSG00000056558 
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UniProt GroupQ13077
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  • Reference Sequence
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
Baculoviral IAP repeat-containing protein 3D75Homo sapiensMutation(s): 0 
Gene Names: BIRC3API2IAP1MIHCRNF49
EC: 2.3.2.27
UniProt & NIH Common Fund Data Resources
Find proteins for Q13489 (Homo sapiens)
Explore Q13489 
Go to UniProtKB:  Q13489
PHAROS:  Q13489
GTEx:  ENSG00000023445 
Entity Groups  
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UniProt GroupQ13489
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 
E [auth D]ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.80 Å
  • R-Value Free: 0.247 
  • R-Value Work: 0.197 
  • R-Value Observed: 0.204 
  • Space Group: I 41
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 91.867α = 90
b = 91.867β = 90
c = 88.702γ = 90
Software Package:
Software NamePurpose
ADSCdata collection
MOLREPphasing
HKL-2000data reduction
SCALEPACKdata scaling
PHASERphasing
REFMACrefinement

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