Molecular characterisation of ILRUN, a novel inhibitor of proinflammatory and antimicrobial cytokines.
Ambrose, R.L., Brice, A.M., Caputo, A.T., Alexander, M.R., Tribolet, L., Liu, Y.C., Adams, T.E., Bean, A.G.D., Stewart, C.R.(2020) Heliyon 6: e04115-e04115
- PubMed: 32518853 
- DOI: https://doi.org/10.1016/j.heliyon.2020.e04115
- Primary Citation of Related Structures:  
6VHI - PubMed Abstract: 
Regulation of type-I interferon (IFN) production is essential to the balance between antimicrobial defence and autoimmune disorders. The human protein-coding gene ILRUN (inflammation and lipid regulator with UBA-like and NBR1-like domains, previously C6orf106) was recently characterised as an inhibitor of antiviral and proinflammatory cytokine (interferon-alpha/beta and tumor necrosis factor alpha) transcription. Currently there is a paucity of information about the molecular characteristics of ILRUN, despite it being associated with several diseases including virus infection, coronary artery disease, obesity and cancer. Here, we characterise ILRUN as a highly phylogenetically conserved protein containing UBA-like and a NBR1-like domains that are both essential for inhibition of type-I interferon and tumor necrosis factor alpha) transcription in human cells. We also solved the crystal structure of the NBR1-like domain, providing insights into its potential role in ILRUN function. This study provides critical information for future investigations into the role of ILRUN in health and disease.
Organizational Affiliation: 
CSIRO Health & Biosecurity, Australian Centre for Disease Preparedness, Geelong, Victoria, 3220, Australia.