biological source
human
recombinant
expressed in E. coli
assay
≥98% (HPLC)
≥98% (SDS-PAGE)
form
lyophilized
potency
≤1.0 ng/mL ED50
mol wt
18.6 kDa
packaging
pkg of 10 μg
technique(s)
cell culture | mammalian: suitable
impurities
<0.1 EU/μg endotoxin, tested
color
white
UniProt accession no.
shipped in
wet ice
storage temp.
−20°C
Gene Information
human ... THPO(7066)
Related Categories
General description
Thrombopoietin (TPO) is a lineage specific growth factor, produced in the liver, kidney and skeletal muscle. It is an acidic glycoprotein. The gene encoding it is localized on human chromosome 3q27.1. Recombinant human TPO is a fully biologically active 174 amino acid polypeptide (18.6kDa), which contains the erythropoietin-like domain of the full length TPO protein.
Biochem/physiol Actions
Thrombopoietin (TPO) stimulates the proliferation and maturation of megakaryocytes, and promotes increased circulating levels of platelets in vivo. TPO signals through the cellular proto-oncogene (c-mpl) receptor and acts as an important regulator of circulating platelets. High levels of TPO have been observed in patients with aplastic anemia. Human and murine TPO exhibits cross-species reactivity.
Sequence
SPAPPACDLR VLSKLLRDSH VLHSRLSQCP EVHPLPTPVL LPAVDFSLGE WKTQMEETKA QDILGAVTLL LEGVMAARGQ LGPTCLSSLL GQLSGQVRLL LGALQSLLGT QLPPQGRTTA HKDPNAIFLS FQHLLRGKVR FLMLVGGSTL CVRRAPPTTA VPSRTSLVLT LNEL
Physical form
Lyophilized from 0.1% TFA.
Reconstitution
Centrifuge the vial prior to opening. Reconstitute in water to a concentration of 0.1-1.0 mg/ml. Do not vortex. This solution can be stored at 2-8°C for up to 1 week. For extended storage, it is recommended to further dilute in a buffer containing a stabilizer (example 5% Trehalose) and store in working aliquots at -20°C to -80°C.
Storage Class
11 - Combustible Solids
wgk_germany
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
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