Recombinant Human Basic Salivary Proline Rich Protein 1 (PRB1) is a purified Prokaryotic Protein. Purity: >90% by SDS-PAGE. Host: E. coli. Endotoxin Level: <1.0EU per 1ug, by the LAL method. Species: Human (Homo sapiens). Target Name: Basic Salivary 1 * 100 µG