Citrullinated LL-37 Peptide

LL-37 is a cationic alpha-helical peptide expressed in human bone marrow, testis, granulocytes, and gingival epithelium and a variety of immune cells. It has antimicrobial and antiviral activity, and protein levels of LL-37 are increased in epithelial cells, macrophages, and neutrophils following bacterial infection in vitro. LL-37 can be citrullinated by protein arginine deiminase 2 (PAD2) and PAD4, a modification that reduces its antibacterial and antiviral activities. Citrullinated, unlike native, LL-37 does not prevent mortality in a mouse model of D-galactosamine-sensitized endotoxic shock. Citrullinated LL-37 has been found in neutrophil extracellular traps (NETs), as well as the serum of patients with rheumatoid arthritis (RA) and individuals without RA.Synonyms: Citrullinated Antibacterial Peptide LL-37. MW: 4,497.2. Formulation: (Request formulation change), 1 mg of lyophilized peptide. UniProt Accession #: P49913.