Megakaryocyte colony-stimulating factor, Myeloproliferative leukemia virus oncogene ligand, C-mpl ligand, ML, Megakaryocyte growth and development factor, MGDF, TPO, MKCSF, MPLLG, MGC163194, THPO
Thrombopoietin is a glycoprotein hormone produced mainly by the liver and the kidney which regulates the production of platelets by the bone marrow. TPO stimulates the production as well as differentiation of megakaryocytes, the bone marrow cells which fragment into large numbers of platelets.
TPO Human Recombinant produced in HEK293 cells is a single, glycosylated polypeptide chain containing 343 amino acids (22-353 a.a) and having a molecular mass of 36.8kDa.
TPO is fused to an 11 amino acid His-tag at C-terminus & purified by proprietary chromatographic techniques.
TPO protein (0.25mg/ml) contains 10% glycerol and Phosphate-Buffered Saline (pH 7.4).
For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).
Avoid multiple freeze-thaw cycles.
Greater than 90.0% as determined by SDS-PAGE.
The ED50 range is ≤10ng/ml. It is measured by cell proliferation assay using MO7e human megakaryocytic leukemic cells.
Amino acid sequence
DGSHMSPAPP ACDLRVLSKL LRDSHVLHSR LSQCPEVHPL PTPVLLPAVD FSLGEWKTQM EETKAQDILG AVTLLLEGVM AARGQLGPTC LSSLLGQLSG QVRLLLGALQ SLLGTQLPPQ GRTTAHKDPN AIFLSFQHLL RGKVRFLMLV GGSTLCVRRA PPTTAVPSRT SLVLTLNELP NRTSGLLETN FTASARTTGS GLLKWQQGFR AKIPGLLNQT SRSLDQIPGY LNRIHELLNG TRGLFPGPSR RTLGAPDISS GTSDTGSLPP NLQPGYSPSP THPPTGQYTL FPLPPTLPTP VVQLHPLLPD PSAPTPTPTS PLLNTSYTHS QNLSQEGHHH HHH