Histatins are anti-microbial peptides found in saliva. They are thought to be the major precursor to the protective proteinaceous structures on tooth surfaces.Human: H-Asp-Ser-His-Ala-Lys-Arg-His-His-Gly-Tyr-Lys-Arg-Lys-Phe-His-Glu-Lys-His-His-Ser-His-Arg-Gly-Tyr-OH or H-DSHAKRHHGYKRKFHEKHHSHRGY-OH