Caged aminoluciferin probe for bioluminescent immunoproteasome activity analysis.

ABSTRACT: The immunoproteasome (iCP) can be expressed under inflammatory conditions, such as exposure to interferon-gamma (IFN-γ), that alerts the cell to begin generating iCP preferentially over the standard proteasome (sCP). With the iCP becoming a widely targeted isoform in a variety of diseases, there is a need to understand its activity and expression in cells and in vivo. Activity-based probes for the iCP have been developed but their application has been limited due to their difficult synthesis and cannot be used in tissues or whole animals. Our lab has previously demonstrated we can monitor iCP activity using a 4-mer peptide linked to a fluorophore and a peptoid. This was utilized in the development of the first cell-permeable iCP activity-based probe that did not include a covalent r

SUBMITTER: Loy CA 

PROVIDER: S-EPMC11352960 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature