| Description : |
M-CSF, also known as CSF-1, is a four α helical bundle cytokine that is the primary regulator of macrophage survival, proliferation and differentiation. M-CSF is also essential for the survival and proliferation of osteoclast progenitors. M-CSF also primes and enhances macrophage killing of tumor cells and microorganisms, regulates the release of cytokines and other inflammatory modulators from macrophages, and stimulates pinocytosis. |
| Source : |
Baculovirus infected Silkworm |
| Species : |
Human |
| Form : |
Sterile Filtered White lyophilized (freeze-dried) powder. |
| Bio-activity : |
Fully biologically active when compared to standard. The ED50 as determined by the dose-dependant stimulation of the proliferation of murine M-NSF-60 cells is less than 3.0 ng/mL, corresponding to a Specific Activity of ＞3.3 × 10^5 IU/mg. |
| Molecular Mass : |
Approximately 42.0 kDa, a covalently linked homodimer, of two 21.0 kDa polypeptide monomers (1-149 amino acid of human M-CSF). |
| Protein Length : |
1-149 |
| AA Sequence : |
EEVSEYCSHMIGSGHLQSLQRLIDS QMETSCQITFEFVDQEQLKDPVCYL KKAFLLVQDIMEDTMRFRDNTPNAI AIVQLQELSLRLKSCFTKDYEEHDK ACVRTFYETPLQLLEKVKNVFNETK NLLDKDWNIFSKNCNNSFAECSSQ |
| Endotoxin : |
Less than 1 EU/mg of rHuM-CSF as determined by LAL method. |
| Purity : |
>95% by SDS-PAGE and HPLC analyses. |
| Storage : |
This lyophilized preparation is stable at 2-8 centigrade, but should be kept at -20 centigrade for long term storage, preferably desiccated. Upon reconstitution, the preparation is stable for up to one week at 2-8 centigrade. For maximal stability, apportion the reconstituted preparation into working aliquots and store at -20 to -70 centigrade. Avoid repeated freeze/thaw cycles. |
| Storage Buffer : |
Lyophilized from a 0.2mm filtered solution in 20mM PB, containing 1% HSA and 3% Mannitol. |
| Reconstitution : |
We recommend that this vial be briefly centrifuged prior to opening to bring the contents to the bottom. Reconstitute in sterile distilled water to a concentration of 0.1 mg/mL. Stock solutions should be apportioned into working aliquots and stored at < -20 centigrade. Further dilutions should be made in appropriate buffered solutions. |
