T1568
Thrombopoietin human
recombinant, expressed in E. coli, lyophilized powder, suitable for cell culture, ≥98% (SDS-PAGE and HPLC)
Synonym(s):
MGDF, Megakaryocyte colony-stimulating factor, TPO, c-MPL ligand
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About This Item
Form:
lyophilized powder
Assay:
≥98% (SDS-PAGE and HPLC)
Biological source:
human
Recombinant:
expressed in E. coli
Mol wt:
18.6 kDa
biological source
human
recombinant
expressed in E. coli
assay
≥98% (SDS-PAGE and HPLC)
form
lyophilized powder
potency
≤1.0 ng/mL ED50
mol wt
18.6 kDa
packaging
pkg of 5 μg
storage condition
avoid repeated freeze/thaw cycles
technique(s)
cell culture | mammalian: suitable
impurities
endotoxin, tested
UniProt accession no.
storage temp.
−20°C
Quality Level
Gene Information
human ... THPO(7066)
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Analysis Note
The biological activity is measured in a cell proliferation assay using MO7e cells.
Application
TPO stimulates the proliferation and maturation of megakaryocytes and promotes increased circulating levels of platelets in vivo. TPO signals through the c-mpl receptor and acts as an important regulator of circulating platelets
Biochem/physiol Actions
TPO is a ligand for the c-mpl proto-oncogene (Mpl-L), a megakaryocyte colony stimulating factor and primary regulatory factor for megakaryocytopoiesis and thrombopoiesis. TPO is a humoral glycoprotein that stimulates growth and maturation of megakaryocytes and megakaryocytic colonies from bone marrow cultures.
Thrombopoeitin is a primary regulatory factor for megakaryocytopoiesis and thrombopoiesis. The mature form of TPO is a highly conserved glycoprotein, showing homology among various mammals. It is produced by liver and kidney cells. TPO stimulates growth and maturation of megakaryocytes and megakaryocytic colonies from bone marrow cultures. TPO binds and activates an 68-78 kDa glycoprotein receptor belonging to the GH family of cytokine receptors, a family that includes receptors to growth hormone (GH), erythropoietin (EPO), and prolactin (PRL). Like GH and EPO, TPO may bind to its receptor at two distinct sites, initiating receptor dimerization and activation. Analysis of mRNA indicates also the existence of a novel truncated and potentially soluble form of TPO receptor. The viral oncogene v-mlp of the myeloproliferative leukemia virus (MPLV) contains the gene sequence for the entire cytoplasmic and transmembrane domains and a portion of the extracellular domain of c-mlp (TPO receptor).
Physical form
Lyophilized from a 0.1 % TFA solution containing 250 μg bovine serum albumin
Storage Class
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
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