Recombinant Human Signal Transducer And Activator Of Transcription 3 (STAT3) 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), Mouse (Mus musculus), Rat (Rattus norvegicus), Bovine (Bos taurus). Target Name: Signal Transducer And Activator Of Transcription 3 (STAT3). Target Synonyms: APRF, Acute-Phase Response Factor. Accession Number: P40763. Gene ID: 6774. Expression Region: Thr346~Glu552. Tag Info: N-terminal His Tag. Theoretical MW: 26kDa. 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.