PRB2 (Basic Salivary Proline-rich Protein 2, Salivary Proline-rich Protein, Con1 GlycoProtein, Basic Proline-rich peptide IB-1, Basic Proline-rich peptide P-E, IB-9, Basic Proline-rich peptide IB-7, Basic Proline-rich peptide IB-8c, Basic peptide P-F, Basic Proline-rich peptide IB-4, PRB2) (HRP) discontinued