Human Tumor Necrosis Factor Beta (TNFb), Active Protein 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: Tumor Necrosis Factor Beta (TNFb). Target Synonyms: LT, LTA, TNF-B, TNFSF1, Tumor Necrosis Factor Ligand Superfamily Member 1, Lymphotoxin Alpha. Accession Number: P01374. Gene ID: 4049. Expression Region: Pro36~Leu205. Tag Info: N-terminal His Tag. Theoretical MW: 23kDa. 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.