檔案名稱:rp-1/rmTPO.html

重組蛋白目錄

本類目錄


Recombinant Murine Thrombopoietin

Certificate of Analysis and Data Sheet

Source:
E.Coli

Catalog No.
CYT-346

Description :

Recombinant Murine TPO produced in E.Coli is a single, non-glycosylated soluble polypeptide chain containing 174 amino acids and having a molecular mass of 18704 Dalton which comprises the receptor binding domain of the Mpl-ligand protein. Recombinant mouse Thrombopoietin is purified by proprietary chromatographic techniques.

Physical Appearance:

Sterile Filtered White lyophilized (freeze-dried) powder.

Formulation:

Lyophilized from a concentrated (1mg/ml) solution in water containing no additives.

Solubility:

It is recommended to reconstitute the lyophilized Recombinant TPO in sterile 18MΩ-cm H2O not less than 100ug/ml, which can then be further diluted to other aqueous solutions.

Stability:

Lyophilized Recombinant TPO although stable at room temperature for 3 weeks, should be stored desiccated below -18 C. Upon reconstitution Recombinant TPO should be stored at 4 C between 2-7 days and for future use below -18 C. For long term storage it is recommended to add a carrier protein (0.1% HSA or BSA).
Please avoid freeze-thaw cycles.

Purity:

Greater than 98.0% as determined by: (a) Analysis by RP-HPLC. (b) Anion-exchange FPLC. (c) Analysis by reducing and non-reducing SDS-PAGE Silver Stained.

Amino-Acid Sequence :

The sequence of the first five N-terminal amino acids was determined and was found to be Ser-Pro-Val-Ala-Pro.

Dimers and aggregates:

Less than 1% as determined by silver-stained SDS-PAGE gel analysis.

Biological Activity:

ProSpec旧 Recombinant TPO is fully biologically active when compared to standard. The ED50 as determined by the dose-dependant stimulation of MO7e cells is less then 1 ng/ml, corresponding to a Specific Activity of 1 x 10 6 IU/mg.

Endotoxin:

Less than 0.1 ng/ug (IEU/ug) of TPO.

Protein content:

Protein quantitation was carried out by two independent methods: 1. UV spectroscopy at 280 nm. 2. Analysis by RP-HPLC, using a calibrated solution of TPO as a Reference Standard.

Usage:

This material is offered by ProSpec-TechnoGene for research, laboratory or further evaluation purposes.


Gene:

Name:Thpo

Protein synonyms/aliases:

Thrombopoietin precursor (Megakaryocyte colony-stimulating factor)
    (Myeloproliferative leukemia virus oncogene ligand)
    (C-mpl ligand)
    (ML)
    (Megakaryocyte growth and development factor)
    (MGDF).

Protein Family:

Belongs to the EPO/TPO family.

Protein Domains:


Domains:
IPR001323   Erythropoietin/thrombopoeitin

Related proteins:

Recombinant Human Erythropoietin-alpha
Recombinant Human Thrombopoietin

Protein links:

Recombinant Murine Thrombopoietin protein domain

Recombinant Murine Thrombopoietin protein family


Precursor- Protein structure and amino acid sequence:


Latest Publications:

1. Thrombopoietin gene transfer-mediated enhancement of angiogenic responses to acute ischemia.
Circ Res 2005 Aug 19;97(4):337-45
2. Thrombopoietin production in wild-type and interleukin-6 knockout mice with acute inflammation.
J Interferon Cytokine Res 2005 Jul;25(7):407-13
3. Transgenic mice overexpressing murine thrombopoietin develop myelofibrosis and osteosclerosis.
Leuk Res 2005 Jul;29(7):761-9
4. 3'-Half of the thrombopoietin cDNA confers higher expression of erythropoietin at the RNA level but not at the protein level.
Mol Cells 2005 Apr 30;19(2):198-204
5. Thrombopoietin enhances expression of vascular endothelial growth factor (VEGF) in prim itive hematopoietic cells through induction of HIF-1alpha.
Blood 2005 Jun 1;105(11):4258-63
6. Stem cell factor synergistically enhances thrombopoietin-induced STAT5 signaling in megakaryocyte progenitors through JAK2 and Src kinase.
Stem Cells 2005 Feb;23(2):240-51

採購找生工,預算最輕鬆。

回頁首↑ | 回首頁←


中華民國95年06月06日更新