Purity > 90% as determined by SDS-PAGE. MW: 28.2kDa. Full Length: 1-201aa. N-terminal 10xHis-tagged and C-terminal Myc-tagged. Hordeum vulgare (Barley). Releases hydrogen peroxide in the apoplast which may be important for cross-linking reactions in the cell wall biochemistry. May play an important role in several aspects of plant growth and defense mechanisms.