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Key features and details:
- Expression System:Escherichia coli
- Purity/method:>95% as determined by SDS-PAGE. Ni-NTA chromatography.
- Fusion tag:His-tag at the N-terminus
- Application: WB, ELISA, SDS-PAGE, Cell culture, Elisa
Thrombopoietin is a glycoprotein hormone produced mainly by the liver and the kidney that regulates the production of platelets by the bone marrow. The protein functions in the iodination of tyrosine residues in thyroglobulin and phenoxy-ester formation between pairs of iodinated tyrosines to generate the thyroid hormones, thyroxine and triiodothyronine. It stimulates the production and differentiation of megakaryocytes, the bone marrow cells that fragment into large numbers of platelets.
Protein Accession: P40225.1
Gene ID: 7066
SPAPPACDLRVLSKLLRDSHVLHSRLSQCPEVHPLPTPVLLPAVDFSLGEWKTQMEETKAQDILGAVTLLLEGVMAARGQLGPTCLSSLLGQLSGQVRLLLGALQSLLGTQLPPQGRTTAHKDPNAIFLSFQHLLRGKVRFLMLVGGSTLCVRRAPPTTAVPSRTSLVLTLNEL with polyhistidine tag at the N-terminus.
Measure by its ability to induce proliferation in MO7e cells. The ED50 for this effect is <2 ng/mL. The specific activity of recombinant human TPO is > 5 x 105 IU/mg.
Endotoxin level: < 0.01 EU per 1 ug of the protein by the LAL method.
Calculated Molecular Weight: 19.6 kDa
Formulation: The protein was lyophilized from a solution containing 1X PBS, pH 7.4.
It is recommended to reconstitute the lyophilized protein in sterile H2O to a concentration not less than 100 ug/mL and incubate the stock solution for at least 20 min to ensure sufficient re-dissolved.
Shipping: Blue Ice
Stability and Storage:
Lyophilized protein should be stored at -20 degrees Celsius for 1 year. Upon reconstitution, store at 2 degrees Celsius to 8 degrees Celsius for up to 1 week. Further dilute in a buffer containing a carrier protein or stabilizer (e.g. 0.1% BSA, 10%FBS, 5%HSA or 5% trehalose solution), protein aliquots should be stored at -20 degrees Celsius or -80 degrees Celsius for 3-6 months.
SDS-PAGE Image Name: human TPO
Datasheets and documents:
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