Recombinant Human Collagen Type IV Alpha 3 (COL4a3) is a purified Prokaryotic Protein. Purity: >97% by SDS-PAGE. Host: E. coli. Endotoxin Level: <1.0EU per 1ug, by the LAL method. Species: Human (Homo sapiens). Target Name: Collagen Type IV Alpha 3 (COL4a3). Target Synonyms: COL4-A3, Tumstatin, Goodpasture Antigen, Collagen Alpha-3(IV)chain. Accession Number: Q01955. Gene ID: 1285. Expression Region: Leu1428~His1670. Tag Info: N-terminal His Tag. Theoretical MW: 31kDa. Buffer: PBS, pH7.4, containing 0.01% SKL, 5% Trehalose. Storage: -20C. Avoid repeated freeze/thaw cycles. Restrictions: For Research Use Only. Not for use in diagnostic procedures.