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LMP2 immunoproteasome promotes lymphocyte survival by degrading apoptotic BH3-only proteins

Zanker, Damien; Pang, Kenneth; Oveissi, Sara; Lu, Chunni; Faou, Pierre; Nowell, Cameron; Mbogo, George W; Carotta, Sebastian; Quillici, Cathy; Karupiah, Gunasegaran; Hibbs, Margaret L


The role of the immunoproteasome is perceived as confined to adaptive immune responses given its ability to produce peptides ideal for MHC Class‐I binding. Here, we demonstrate that the immunoproteasome subunit, LMP2, has functions beyond its immunomodulatory role. Using LMP2‐deficient mice, we demonstrate that LMP2 is crucial for lymphocyte development and survival in the periphery. Moreover, LMP2‐deficient lymphocytes show impaired degradation of key BH3‐only proteins, resulting in elevated...[Show more]

CollectionsANU Research Publications
Date published: 2018
Type: Journal article
Source: Immunology and Cell Biology
DOI: 10.1111/imcb.12163


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