Journal
TRENDS IN CELL BIOLOGY
Volume 32, Issue 9, Pages 746-761Publisher
CELL PRESS
DOI: 10.1016/j.tcb.2022.01.014
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Funding
- European Union [779295]
- KU Leuven C1 project [C16/17/010]
- FWO-Vlaanderen [G080818N]
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This article provides a comprehensive overview of PAD enzyme expression at the RNA and protein levels, as well as a list of annotated substrates for each PAD isozyme. The authors discuss novel roles of citrullination in cellular growth, epigenetic regulation, tissue remodeling, inflammation, and cancer in mouse models and humans. Additionally, they cluster similar effects of protein deimination to provide a different perspective and improve understanding of citrullination in health and disease.
Peptidylarginine deiminases (PADs) are calcium-dependent enzymes that mediate citrullination, an irreversible post-translational modification (PTM). PAD enzymes have received increasing attention in (patho-)physiology since multi-omics analysis accelerated their expression profiling. Here, we provide a comprehensive overview of PAD expression at the RNA and protein levels, and a list of annotated substrates per PAD isozyme. We discuss novel roles of citrullination in cellular growth, epige-netic regulation, tissue remodeling, inflammation, and cancer in mouse models and humans. Additionally, we cluster similar effects of protein deimination to offer a different perspective and improve our understanding of citrullination in health and disease. Citrullination should no longer be considered as a rare PTM, but as an important regulatory mechanism in physiology and pathology.
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