Thrombopoietin Protein (THPO) (AA 22-195)

Catalog No. ABIN2667588

Recombinant Thrombopoietin protein expressed in Escherichia coli (E. coli).

Quick Overview for Thrombopoietin Protein (THPO) (AA 22-195) (ABIN2667588)

Target: Thrombopoietin (THPO)

Protein Type: Recombinant

Biological Activity: Active

Origin: Human

Source: Escherichia coli (E. coli)

Application: Flow Cytometry (FACS)

Purity: >98 % , as determined by Coomassie stained SDS-PAGE and HPLC analysis.

Product Details

Protein Characteristics: AA 22-195

Endotoxin Level:

Less than 0.1 ng per μg of protein.

Application Details

Application Notes: Optimal working dilution should be determined by the investigator.

Comment:

Biological activity: The ED50 as determined by the dose-dependent stimulation of the proliferation of human MO7e cells was found to be ≤ 1.0 ng/ml, corresponding to a specific activity of ≥ 1.0 x 106 units/mg.

Restrictions: For Research Use only

Handling

Format: Lyophilized

Reconstitution: For maximum results, quick spin vial prior to opening. Reconstitute in water to a concentration of 0.1-1.0 mg/mL. Do not vortex. It is recommended to further dilute in a buffer, such as 5 % Trehalose, and store working aliquots at -20 °C to -80 °C.

Buffer: Lyophilized, carrier-free.

Handling Advice: Avoid repeated freeze/thaw cycles.

Storage: -20 °C

Storage Comment: Unopened vial can be stored at -20°C or -70°C.

Target Details

Target: Thrombopoietin (THPO)

Alternative Name: Thrombopoietin

Background: TPO is a key regulator of megakaryocytopoiesis and thrombopoiesis. It signals through the c-mpl receptor and stimulates the proliferation and maturation of megakaryocytes, hence, TPO plays an important role in regulating the level of circulating platelets in vivo. It has also been shown that TPO is able to promote the survival, self-renewal, and expansion of hematopoietic stem cells and primitive multilineage progenitors. Besides its hematopoietic effects, TPO is expressed in the brain where it promotes apoptosis of hypoxia sensitized neurons and inhibits neuronal differentiation by blocking NGF-induced signaling.

Molecular Weight: The 174 amino acid recombinant protein has a predicted molecular mass of approximately 18.6 kDa. The predicted N-terminal amino acid is Ser.

Pathways: JAK-STAT Signaling, Hormone Activity