Reactivity | MuSpecies Glossary |
Applications | Bioactivity |
Format | Carrier-Free |
Details of Functionality | Measured by its ability to inhibit the Tpo-dependent proliferation of MO7e human megakaryocytic leukemic cells. The ED50 for this effect is 0.1-0.4 µg/mL in the presence of 4 ng/mL of Recombinant Mouse Thrombopoietin/Tpo (Catalog # 488-TO). |
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Source | Mouse myeloma cell line, NS0-derived mouse Thrombopoietin R/Tpo R protein
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Accession # | |||||||||||
N-terminal Sequence | Met |
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Structure / Form | Disulfide-linked homodimer |
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Protein/Peptide Type | Recombinant Proteins |
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Gene | Mpl |
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Purity | >90%, by SDS-PAGE under reducing conditions and visualized by silver stain |
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Endotoxin Note | <0.10 EU per 1 μg of the protein by the LAL method. |
Dilutions |
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Theoretical MW | 79.6 kDa (monomer). Disclaimer note: The observed molecular weight of the protein may vary from the listed predicted molecular weight due to post translational modifications, post translation cleavages, relative charges, and other experimental factors. |
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SDS-PAGE | 95-110 kDa, reducing conditions |
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Publications |
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Storage | Use a manual defrost freezer and avoid repeated freeze-thaw cycles.
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Buffer | Lyophilized from a 0.2 μm filtered solution in PBS and EDTA. |
Purity | >90%, by SDS-PAGE under reducing conditions and visualized by silver stain |
Reconstitution Instructions | Reconstitute at 100 μg/mL in sterile PBS. |
Thrombopoietin receptor (Tpo R), also known as myeloproliferative leukemia protein (c-mpl), is a type I membrane protein that is a member of the hematopoietin/cytokine receptor superfamily. Thrombopoietin (Tpo) is a key regulator of megakaryocytopoiesis and thrombopoiesis in vitro and in vivo. Receptor dimerization occurs upon ligand binding. Downstream signaling cascades utilize the Ras/MAP and JAK/STAT pathways (1). In humans, variations at the 3’ end on the molecule result in the formation of 3 distinct mRNA species, a P-form, a K-form, and a potentially secreted form. The predominant form in humans is the P-form, which encodes a full length receptor. In mouse, mRNA for a full length form, a potentially secreted form, and a form lacking 8 amino acids in the extra-cytoplasmic domain has been detected (2). The human and mouse receptors share approximately 81% amino acid identity. Tpo R is expressed at low levels in various cell types including hematopoietic progenitor cells, megakaryocytes and platelets.
Publication using 1317-TR | Applications | Species |
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Nakamura-Ishizu , Ayako, Takubo , Keiyo, Fujioka , Masato, Suda , Toshio Megakaryocytes are essential for HSC quiescence through the production of thrombopoietin. Biochem Biophys Res Commun, 2014-10-24;454(2):353-7. 2014-10-24 [PMID: 25451253] (Neutralization, Mouse) | Neutralization | Mouse |
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