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You are here:Home » Growth Factors, Cytokines » Growth Factors-GM-CSF » Granulocyte Macrophage Colony Stimulating Factor, Recombinant, Porcine (GM-CSF, Burst Promoting Activity, CMCSF, Colony Stimulating Factor 2, CSF Alpha, Eosinophil Colony Stimulating Factor, Granulocyte Macrophage Colony Stimulating Factor, Molgramostin,

Granulocyte Macrophage Colony Stimulating Factor, Recombinant, Porcine (GM-CSF, Burst
Promoting Activity, CMCSF, Colony Stimulating Factor 2, CSF Alpha, Eosinophil Colony
Stimulating Factor, Granulocyte Macrophage Colony Stimulating Factor, Molgramostin,

Pricing

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Specifications

The overall structure of GM-CSF is highly compact and globular with a predominantly hydrophobic core, is characterized by a 4-alpha-helix bundle. The helices are arranged in a left-handed anti-parallel fashion, with two overhand connections. Within the connections is a two-stranded anti-parallel beta-sheet. The tertiary structure has a topology similar to that of (pig) growth factor and interferon-beta. Most of the proposed critical regions for receptor binding are located on a continuous surface at one end of the molecule that includes the C terminus.
Granulocyte Macrophage Colony Stimulating Factor is produced in response to a number of inflammatory mediators by mesenchymal cells present in the hemopoietic environment and at peripheral sites of inflammation. Granulocyte Macrophage-CSF is able to stimulate the production of neutrophilic granulocytes, macrophages, and mixed granulocyte-macrophage colonies from bone marrow cells and can stimulate the formation of eosinophil colonies from fetal liver progenitor cells. GM-CSF can also stimulate some functional activities in mature granulocytes and macrophages. GM-CSF receptors shows significant homologies with other receptors for hematopoietic growth factors , including IL2-beta, IL-3 , IL-6 , IL-7 , EPO and the Prolactin receptors
Recombinant Porcine GM-CSF produced in E.Coli is a single, non-glycosylated, polypeptide chain containing 127 amino acids and having a molecular mass of 14381 Dalton.
Porcine GM-CSF is purified by proprietary chromatographic techniques.
Catalog #G8950-22
Amino acid sequenceThe sequence of the first five N-terminal amino acids was determined and was found to be Ala-Pro-Thr-Arg-Pro.
Dimers and aggregates 1% as determined by silver-stained SDS-PAGE gel analysis.
Biological ActivityPorcine GM-CSF is fully biologically active when compared to standard. The ED50 as determined by the dose-dependent stimulation of the proliferation TF-1 cell line is < 20 ng/ml.
Endotoxin 0.1ng/ug (IEU/ug) of GM-CSF .
Protein contentProtein quantitation was carried out by two independent methods:
1. UV spectroscopy at 280 nm using the absorbency value of 0.977 as the extinction coefficient for a 0.1% (1mg/ml) solution. This value is calculated by the PC GENE computer analysis program of protein sequences (IntelliGenetics).
2. Analysis by RP-HPLC, using a calibrated solution of Recombinant Porcine GM-CSF as a Reference Standard.
Storage and StabilityLyophilized powder may be stored at 4°C for short-term only. Reconstitute to nominal volume by adding sterile dH2O or buffer of choice and store at -20°C. Reconstituted product is stable for 12 months at -20°C. For maximum recovery of product, centrifuge the original vial after thawing and prior to removing the cap. Further dilutions can be made in assay buffer.
Molecular Weight14.38kD
SourceE. coli
Purity95% as determined by RP-HPLC, anion-exchange FPLC and/or reducing and non-reducing SDS-PAGE Silver Stained gel.
FormSupplied as a lyophilized powder without additives. It is recommended to reconstitute the lyophilized Porcine GM-CSF in sterile 20mM AcOH (acetic Acid) not less than 100ug/ml, which can then be further diluted to other aqueous solutions.
Important NoteThis product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological.


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