Recombinant Human Signal Transducer And Activator Of Transcription 1 (STAT1) is a purified Prokaryotic Protein. Purity: >95% by SDS-PAGE. Host: E. coli. Endotoxin Level: <1.0EU per 1ug, by the LAL method. Species: Human (Homo sapiens). Target Name: Signal Transducer And Activator Of Transcription 1 (STAT1). Target Synonyms: ISGF-3, STAT91, Transcription Factor ISGF-3 Components p91/p84. Accession Number: P42224. Gene ID: 6772. Expression Region: Ser2~Ala230. 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.