描述
CSF1R also known as M-CSF receptor, the product of the c-fms proto-oncogene, is a member of the type III subfamily of receptor tyrosine kinases that also includes receptors for SCF and PDGF. These receptors each contain five immunoglobulin-like domains in their extracellular domain (ECD) and a split kinase domain in their intracellular region. The human M-CSF R ECD shares 60%, 64%, 72%, 75%, 75% and 76% aa identity with mouse, rat, bovine, canine, feline and equine M-CSF R, respectively. M-CSF R engagement is continuously required for macrophage survival and regulates lineage decisions and maturation of monocytes, macrophages, osteoclasts and DC. M-CSF R and integrin alpha v beta 3 share signaling pathways during osteoclastogenesis and deletion of either causes osteopetrosis. In the brain, microglia expressing increased M-CSF R are concentrated with Alzheimers a beta peptide, but their role in pathogenesis is unclear.
Specifications
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Synonyms |
CSF1R, CSF-1-R, CSFR, FMSFIM2, MCSFR, M-CSFR, C-FMS, FIM2, FMS, HDLS |
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Uniprot No. |
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Source |
HEK293 Cells-derived Human M-CSF R / CSF1R / CD115 Protein, Ile20-Glu512 with hFc tag at the C-terminal |
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Molecular Weight |
Approximately 81.3 kDa. Due to glycosylation, the protein migrates to 100-130 kDa based on Tris-Bis PAGE result. |
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Physical Appearance |
Sterile Filtered White lyophilized (freeze-dried) powder. |
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Purity |
> 95% as determined by SDS-PAGE and HPLC |
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Activity |
1.ELISA Data: Immobilized Human M-CSF at 0.5 μg/mL (100 μL/Well) on the plate. Dose response curve for Human M-CSF R, hFc Tag with the EC50 of 12.4 ng/mL determined by ELISA. 2.SPR Data: Human M-CSF, His Tag captured on CM5 Chip via Anti-his Antibody can bind Human M-CSF R, hFc Tag with an affinity constant of 0.24 nM as determined in SPR assay (Biacore T200). |
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Endotoxin |
< 1.0 EU per 1μg of the protein by the LAL method. |
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Formulation |
Lyophilized from 0.22 μm filtered solution in PBS (pH 7.4). Normally 5% trehalose is added as protectant before lyophilization. |
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Reconstitution |
Centrifuge tubes before opening. Reconstituting to a concentration more than 100 μg/mL` is recommended (usually we use 1mg/mL solution for lyophilization). Dissolve the lyophilized protein in distilled water. |
Storage
Transport with ice packs. Store at -20℃ to -80℃, valid for one year.
Once reconstituted, store unopened at -20 to -80°C for 3 to 6 months. After reconstitution, store at 2-8°C for 2-7 days.
It is recommended to store in aliquots and freeze for the first use to avoid repeated freezing and thawing.
Note
1. Avoid repeated freezing and thawing.
2. For your safety and health, please wear a lab coat and disposable gloves when operating.
3. This product is for scientific research purposes only.
Product Data
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