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Analysis of 26S Proteasome Activity across Arabidopsis Tissues

Journal Article · · Plants
Plants utilize the ubiquitin proteasome system (UPS) to orchestrate numerous essential cellular processes, including the rapid responses required to cope with abiotic and biotic stresses. The 26S proteasome serves as the central catalytic component of the UPS that allows for the proteolytic degradation of ubiquitin-conjugated proteins in a highly specific manner. Despite the increasing number of studies employing cell-free degradation assays to dissect the pathways and target substrates of the UPS, the precise extraction methods of highly potent tissues remain unexplored. Here, we utilize a fluorogenic reporting assay using two extraction methods to survey proteasomal activity in different Arabidopsis thaliana tissues. This study provides new insights into the enrichment of activity and varied presence of proteasomes in specific plant tissues.
Research Organization:
University of California, Davis, CA (United States)
Sponsoring Organization:
National Science Foundation (NSF); USDOE Office of Science (SC), Biological and Environmental Research (BER)
Grant/Contract Number:
SC0023158
OSTI ID:
2472201
Journal Information:
Plants, Journal Name: Plants Journal Issue: 12 Vol. 13; ISSN 2223-7747
Publisher:
MDPICopyright Statement
Country of Publication:
United States
Language:
English

References (31)

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