PAD2 is a guanidino-modifying enzyme that catalyzes the conversion of specific arginine residues to citrulline in a calcium-dependent manner. This enzyme has been implicated in several diseases, including rheumatoid arthritis (RA), retinal degeneration, and certain cancers. PAD2 has been shown to…

PAD4 is a guanidino-modifying enzyme that functions as a transcriptional coregulator catalyzing the conversion of specific arginine residues to citrulline. Substrates for PAD4 include histones H2A, H3, and H4. PAD4 autocitrullinates itself at several sites, inhibiting its enzymatic activity. PAD4…