Cat#:RP-5139H;Product Name:Recombinant Human POLR2I Protein;Synonym:hRPB14.5, RPB9, DNA-directed RNA polymerase II subunit RPB9, DNA-directed RNA polymerase II subunit I, RNA polymerase II 14.5 kDa subunit, RPB14.5.;Description:POLR2I Protein produced in E.coli is a single, non-glycosylated polypeptide chain containing 148 amino acids (1-125 a.a.) and having a molecular mass of 17.0kDa. POLR2I is fused to a 23 amino acid His-tag at N-terminus & purified by proprietary chromatographic techniques.;Source:E.coli.;AA Sequence:MGSSHHHHHH SSGLVPRGSH MGSMEPDGTY EPGFVGIRFC QECNNMLYPK EDKENRILLY ACRNCDYQQE ADNSCIYVNK ITHEVDELTQ IIADVSQDPT LPRTEDHPCQ KCGHKEAVFF QSHSARAEDA MRLYYVCTAP HCGHRWTE.;Purity:Greater than 85% as determined by SDS-PAGE.;Formulation:POLR2I protein solution (1mg/ml) contains 20mM Tris-HCl buffer (pH 8.0), 0.2M NaCl, 20% glycerol and 1mM DTT.;Stability:Recombinant Proteins are stable for up to 1 year from date of receipt at -70℃;Storage:Store at 4°C if entire vial will be used within 2-4 weeks. Store, frozen at -20°C for longer periods of time. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA). Avoid repeated freeze-thaw cycles.;