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: