Purity ~98% (SDS-PAGE). Phl p 12 is a profilin allergen responsible for cross-reactivity in about 20% of pollen and food allergic patients (1994, Biochem Biophys Res Commun. 199:106-18). Source: Recombinant protein corresponding to Timothy Grass Ph1 p12, fused to His-Tag, expressed in E. coli. Applications: Suitable for use in ELISA. Other applications not tested. Recommended Dilution: Optimal dilutions to be determined by the researcher. Molecular Weight: ~21kD