6KU5 image
Entry Detail
PDB ID:
6KU5
Keywords:
Title:
Notothenia coriiceps TRAF5
Biological Source:
Source Organism:
Host Organism:
PDB Version:
Deposition Date:
2019-08-30
Release Date:
2020-07-08
Method Details:
Experimental Method:
Resolution:
3.30 Å
R-Value Free:
0.28
R-Value Work:
0.24
Space Group:
P 3 2 1
Macromolecular Entities
Polymer Type:polypeptide(L)
Description:TRAF5
Chain IDs:A, B
Chain Length:207
Number of Molecules:2
Biological Source:Notothenia coriiceps
Ligand Molecules
Primary Citation
Structural and biochemical characterization of TRAF5 from Notothenia coriiceps and its implications in fish immune cell signaling.
Fish Shellfish Immunol. 102 56 63 (2020)
PMID: 32283248 DOI: 10.1016/j.fsi.2020.04.016

Abstact

Conserved immune cell signaling in fish was recently highlighted by the identification of various immune cell signaling molecules. Tumor necrosis factor (TNF) receptor-associated factor (TRAF) proteins are critical adaptor molecules in immune cell signaling and contain E3 ubiquitin ligase activity. Here, we report the first crystal structure of the TRAF5 TRAF domain from the black rockcod (Notothenia coriiceps; ncTRAF5). Our structure revealed both similarities and differences with mammalian TRAF5. Structural and biochemical analyses indicated that ncTRAF5 forms a functional trimer unit in solution, with a structural flexibility that might be critical for imparting resistance to cold temperature-induced stress. We also found conserved surface residues on ncTRAF5 that might be critical binding hot spots for interaction with various receptors.

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Primary Citation of related structures