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SRP3178

Sigma-Aldrich

TPO human

Animal-component free, recombinant, expressed in E. coli, ≥98% (SDS-PAGE), ≥98% (HPLC), suitable for cell culture

Synonym(s):

MGDF, Megakaryocyte colony-stimulating factor, Thrombopoietin, c-MPL Ligand

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About This Item

UNSPSC Code:
12352202
NACRES:
NA.32

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.

P40225

shipped in

wet ice

storage temp.

−20°C

Gene Information

human ... THPO(7066)

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 Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Kuter, D.J., et al.
Cytokine Reference, 965-982 (2001)
Yoshio Takei
Handbook of Hormones: Comparative Endocrinology for Basic and Clinical Research (2015)
The molecular mechanisms that control thrombopoiesis.
Kaushansky K
The Journal of Clinical Investigation, 115(12), 3339-3347 (2005)
Christopher R Burtner et al.
Human gene therapy, 26(6), 399-406 (2015-04-29)
Most hematopoietic stem cell gene therapy studies require host conditioning to allow for efficient engraftment of gene-modified cells. Conditioning regimens with lower treatment-related toxicities are especially relevant for the treatment of nonmalignant blood disorders, such as hemoglobinopathies and immunodeficiencies, and
Majed J Dasouki et al.
Blood, 122(20), 3440-3449 (2013-10-03)
We recently identified 2 siblings afflicted with idiopathic, autosomal recessive aplastic anemia. Whole-exome sequencing identified a novel homozygous missense mutation in thrombopoietin (THPO, c.112C>T) in both affected siblings. This mutation encodes an arginine to cysteine substitution at residue 38 or
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