Recombinant Mouse TPO Protein (C-6His)

Name: Recombinant Mouse TPO Protein (C-6His)
Brand: Beta LifeScience
SKU: BL-2895NP
Availability: InStock

BL-2895NP: Greater than 90% as determined by reducing SDS-PAGE. (QC verified)

Collections: Cytokines, Cytokines and growth factors, Other cytokines, Recombinant proteins, Recombinant thrombopoietin (tpo) proteins

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Product Overview

Description	Recombinant Mouse Thrombopoietin is produced by our Mammalian expression system and the target gene encoding Ser22Thr356 is expressed with a 6His tag at the C-terminus.
Accession	P40226
Synonym	Thrombopoietin; C-mpl ligand; Megakaryocyte colony-stimulating factor; Megakaryocyte growth and development factor; Myeloproliferative leukemia virus oncogene ligand; THPO
Gene Background	Thrombopoietin (TPO) is a glycoprotein hormone which belongs to the EPO/TPO family. It produced by the liver and kidney which regulates the production of platelets.Mature mouse Tpo shares 71% and 81% aa sequence homology with human and rat Tpo, respectively. It is an 80-85 kDa protein that consists of an N-terminal domain with homology to Erythropoietin (Epo) and a C-terminal domain that contains multiple N-linked and O-linked glycosylation sites. TPO stimulates the production and differentiation of megakaryocytes, the bone marrow cells that bud off large numbers of platelets. Lineage-specific cytokine affects the proliferation and maturation of megakaryocytes from their committed progenitor cells. It acts at a late stage of megakaryocyte development. It may be the major physiological regulator of circulating platelets.
Molecular Mass	36.4 KDa
Apmol Mass	45-90 KDa, reducing conditions
Formulation	Lyophilized from a 0.2 μm filtered solution of PBS, pH 7.4.
Endotoxin	Less than 0.1 ng/µg (1 EU/µg) as determined by LAL test.
Purity	Greater than 90% as determined by reducing SDS-PAGE. (QC verified)
Biological Activity	Not tested
Reconstitution	Always centrifuge tubes before opening.Do not mix by vortex or pipetting.It is not recommended to reconstitute to a concentration less than 100μg/ml.Dissolve the lyophilized protein in distilled water.Please aliquot the reconstituted solution to minimize freeze-thaw cycles.
Storage	Lyophilized protein should be stored at ≤ -20°C, stable for one year after receipt.Reconstituted protein solution can be stored at 2-8°C for 2-7 days.Aliquots of reconstituted samples are stable at ≤ -20°C for 3 months.
Shipping	The product is shipped at ambient temperature.Upon receipt, store it immediately at the temperature listed below.
Usage	For Research Use Only

Target Details

Target Function	Lineage-specific cytokine affecting the proliferation and maturation of megakaryocytes from their committed progenitor cells. It acts at a late stage of megakaryocyte development. It may be the major physiological regulator of circulating platelets.
Subcellular Location	Secreted.
Protein Families	EPO/TPO family
Database References	KEGG: mmu:21832 STRING: 10090.ENSMUSP00000075756 UniGene: Mm.3943
Tissue Specificity	Found mainly in the liver, kidney and skeletal muscle.

Gene Functions References

Increased TPO expression in HSCs following IL-11 exposure could be mimicked or blocked by inhibiting or overexpressing miR-204-5p, respectively... IL-11 promoted Hematopoietic stem cell engraftment in a mouse model of aplastic anemia an effect that was attenuated in cells overexpressing miR-204-5p. PMID: 29217821
this study assessed the physiological source of thrombopoietin, a key cytokine required for maintaining hematopoietic stem cell . PMID: 29622652
TPO and its receptor Mpl are dispensable for platelet survival in adult mice PMID: 27344013
Furthermore, although the contribution of the TPO treated graft to long-term hematological engraftment was reduced, the TPO treated and untreated grafts both contributed significantly to long-term chimerism in vivo. PMID: 25137252
TPO treatment also promoted the peripheral induction of Foxp3(+) Tregs in conjunction with elevated circulating TGF-beta levels. PMID: 25212676
novel findings about aspects of TPO action on stem cells PMID: 25564715
Mpl expression, but not Tpo, is fundamental in the development of JAK2V617F(+) myeloproliferative neoplasms PMID: 25339357
Thrombopoietin/MPL signaling confers growth and survival capacity to CD41-positive cells in a mouse model of Evi1 leukemia. PMID: 25298035
Megakaryocytes regulate cell cycle quiescence of hematopoietic stem cell through the production of thrombopoietin. PMID: 25451253
IEX-1 has a role in activation of Erk and NF-kB pathways, which affects thrombopoietin-promoted NHEJ DNA repair in hematopoietic stem cells PMID: 24184684
Findings establish that Clock regulates Thpo and Mpl expression in vivo, and demonstrate an important link between the body's circadian timing mechanisms and megakaryopoiesis. PMID: 22284746
Signal transduction pathway of ERK1/2 participates in the activation of thrombopoietin in inflammatory injury of BV2 cells. PMID: 21507308
The implication of Tpo as a mediator of neuronal damage in experimental pneumococcal meningitis is reported. PMID: 21149592
Administration of recombinant human IL11 after supralethal radiation exposure promotes survival in mice: interactive effect with thrombopoietin PMID: 12005542
glycan domain of thrombopoietin acts in trans to enhance secretion of the hormone and other cytokines PMID: 12101178
Thrombopoietin expands hematopoietic stem cells after transplantation PMID: 12163458
p38 mitogen-activated protein kinase (MAPK) was responsible for the TPO-induced Hoxb4 elevation PMID: 12855555
Mpl stimulation by TPO results in the activation of Lyn kinase, which appears to limit the proliferative response through a signaling cascade that regulates MAPK activity PMID: 14726379
Thrombopoietin induces HOXA9 nuclear transport in immature hematopoietic cells PMID: 15254242
mpl-tpo signaling pathways are negatively modulated by lnk PMID: 15337790
is strongly proapoptotic in the brain, causing death of newly generated neurons through the Ras-extracellular signal-regulated kinase 1/2 pathway PMID: 15642952
TPO(high) and GATA-1(low) alterations are linked in an upstream-downstream relationship along a pathobiologic pathway leading to development of myelofibrosis PMID: 15665119
Development of myelofibrosis and osteosclerosis depends on local TPO levels in Bone marrow cells. PMID: 15927672
Thrombopoietin synthesis is induced by IL-6 in the liver during acute inflammation. PMID: 16022585
results suggest that a balance in positive and negative signals downstream from the TPO signal plays a role in the regulation of the probability of self-renewal in HSCs PMID: 17284614
thrombopoietin has a role in mast cell differentiation [review] PMID: 17468237
Chronic TPO overexpression induces mesangioproliferative glomerulopathy. PMID: 17546634
roles for FAK in megakaryocyte growth and platelet function, setting the stage for manipulation of this component of the Tpo signaling apparatus for therapeutic benefit. PMID: 17925492
Transcriptional regulation of bone marrow thrombopoietin by platelet proteins.( PMID: 18410987
TPO induces HIF-1alpha expression in a manner very similar to that of hypoxia. PMID: 18473128
thrombopoietin potentiates vasculogenesis by enhancing motility and enlivenment of transplanted endothelial progenitor cells via activation of Akt/mTOR/p70S6kinase signaling pathway PMID: 18773906
TPO downmodulates c-Myb expression through induction of miR-150. PMID: 18814950

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Proteins are sensitive to heat, and freeze-drying can preserve the activity of the majority of proteins. It improves protein stability, extends storage time, and reduces shipping costs. However, freeze-drying can also lead to the loss of the active portion of the protein and cause aggregation and denaturation issues. Nonetheless, these adverse effects can be minimized by incorporating protective agents such as stabilizers, additives, and excipients, and by carefully controlling various lyophilization conditions.

Commonly used protectant include saccharides, polyols, polymers, surfactants, some proteins and amino acids etc. We usually add 8% (mass ratio by volume) of trehalose and mannitol as lyoprotectant. Trehalose can significantly prevent the alter of the protein secondary structure, the extension and aggregation of proteins during freeze-drying process; mannitol is also a universal applied protectant and fillers, which can reduce the aggregation of certain proteins after lyophilization.

Our protein products do not contain carrier protein or other additives (such as bovine serum albumin (BSA), human serum albumin (HSA) and sucrose, etc., and when lyophilized with the solution with the lowest salt content, they often cannot form A white grid structure, but a small amount of protein is deposited in the tube during the freeze-drying process, forming a thin or invisible transparent protein layer.

Reminder: Before opening the tube cap, we recommend that you quickly centrifuge for 20-30 seconds in a small centrifuge, so that the protein attached to the tube cap or the tube wall can be aggregated at the bottom of the tube. Our quality control procedures ensure that each tube contains the correct amount of protein, and although sometimes you can't see the protein powder, the amount of protein in the tube is still very precise.

To learn more about how to properly dissolve the lyophilized recombinant protein, please visit Lyophilization FAQs.