Antimicrobial peptide with potent activity against some Gram-positive and Gram-negative bacteria (PubMed:30044391). Does not permeabilize membrane, but internalizes into bacterial cells and alter specific gene expression involved in bacterial resistance mechanisms (PubMed:30044391). Has the ability to agglutinate E.coli, and lipid vesicles (PubMed:30044391). Shows a weak hemolytic activity, and is not cytotoxic to monocytes (PubMed:30044391). Expressed by the skin glands. Adopts a distorted helix spanning from residues Gly-7 to Pro-11 and a regular alpha-helix from Val-12 to Arg-20 in membrane mimetic environment, and a random structure in water. Belongs to the histone H2A family.