SRP3178

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
• UNSPSC Code: 12352202
• NACRES: NA.32

Properties

• 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)

Description

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.

Safety Information

• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 3
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable