Catalyzes the citrullination/deimination of arginine residues of proteins. Citrullinates histone H3 at 'Arg-8' and/or 'Arg-17' and histone H4 at 'Arg-3', which prevents their methylation by CARM1 and HRMT1L2/PRMT1 and represses transcription. Citrullinates EP300/P300 at 'Arg-2142', which favors its interaction with NCOA2/GRIP1.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
Protein Aliases: HL-60 PAD; PAD type IV; PAD-R4; PADI-H protein; peptidyl arginine deiminase, type 4; peptidyl arginine deiminase, type IV; peptidyl arginine deiminase, type V; Peptidylarginine deiminase IV; Peptidylarginine deiminase type alpha; Protein-arginine deiminase type IV; Protein-arginine deiminase type-4
Gene Aliases: PAD; PAD4; PADI4; PADI5; PDI4; PDI5
Molecular Function: hydrolase