Background |
Thrombopoietin (TPO) is a glycoprotein that produced by the liver, kidney, marrow stroma and several other tissues. The TPO level in the blood is mostly negatively correlated with the abundance of platelets and bone marrow megakaryocytes, although multiple states of inflammation or infection, liver failure, and hematological disturbances are associated with unexpectedly high or low circulating levels of the hormone. |
Synonyms |
thrombopoietin, Megakaryocyte colony-stimulating factor, c-MPL Ligand, MGDF, THPO |
Uniprot ID |
P40225 |
Molecular Weight |
The protein has a calculated MW of 19.6 kDa.
The protein migrates as 20 kDa under reducing condition (SDS-PAGE analysis). |
Expression System |
Escherichia coli |
Purity |
>95% as determined by SDS-PAGE analysis. |
Activity |
Measure by its ability to induce proliferation in MO7e cells. The ED₅₀ for this effect is <2 ng/mL. |
Endotoxin Level |
<0.05 EU per 1 μg of the protein by the LAL method. |
Protein Sequence |
SPAPPACDLRVLSKLLRDSHVLHSRLSQCPEVHPLPTPVLLPAVDFSLGEWKTQMEETKAQDILGAVTLLLEGVMAARGQLGPTCLSSLLGQLSGQVRLLLGALQSLLGTQLPPQGRTTAHKDPNAIFLSFQHLLRGKVRFLMLVGGSTLCVRRAPPTTAVPSRTSLVLTLNEL with polyhistidine tag at the N-terminus. |
Protein Tag |
His Tag (N-term) |
Form |
Lyophilized from a 0.2 µm filtered solution of PBS, pH 7.4. |
Application |
Cell Culture |