Recombinant Escherichia coli RNA polymerase sigma factor rpoS (rpoS)

Recombinant Escherichia coli RNA polymerase sigma factor rpoS (rpoS) is a purified Recombinant Protein. Purity: >90% as determined by SDS-PAGE. Host: E. coli. Endotoxin Level: Not Tested. Species: Escherichia coli (strain K12). Target Name: rpoS. Target Synonyms: Sigma SSigma-38. Accession Number: P13445. Expression Region: 1~330aa. Tag Info: N-Terminal 6Xhis-Tagged. Theoretical MW: 42.1kDa. Buffer: If the delivery form is liquid, the default storage buffer is Tris/PBS-based buffer, 5%-50% glycerol. If the delivery form is lyophilized powder, the buffer before lyophilization is Tris/PBS-based buffer, 6% Trehalose, pH 8.0. Storage: -20°C. Avoid repeated freeze/thaw cycles. Restrictions: For Research Use Only. Not for use in diagnostic procedures.