Recombinant Mouse M-CSF/CSF1 Protein, Active, Low Endotoxin

Beta LifeScience SKU/CAT #: BEP-0033UL
Recombinant Mouse M-CSF/CSF1 Protein (2 ug/lane) on SDS-PAGE under reducing (R) conditions. The gel was stained using Coomassie® Blue showing a single band at 26 kDa and purity greater than 97%.
Recombinant Mouse M-CSF/CSF1 Protein (2 ug/lane) on SDS-PAGE under reducing (R) conditions. The gel was stained using Coomassie® Blue showing a single band at 26 kDa and purity greater than 97%.

Recombinant Mouse M-CSF/CSF1 Protein, Active, Low Endotoxin

Beta LifeScience SKU/CAT #: BEP-0033UL
Regular price $1,104.00
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Product Overview

Product Name Recombinant Mouse M-CSF/CSF1 Protein
Target Symbol CSF1
Alternative Names Macrophage Colony Stimulating Factor, CSF1, CSF-1, MCSF, MGC31930, Lanimostim, PG-M-CSF, Proteoglycan Macrophage Colony Stimulating Factor
Accession Number Q3U4F9
Expression System E. coli. Disulfide-linked homodimer
Molecular Weight 26.1 kDa (monomer, predicted)
Sequence Lys33-Glu262, with an N-terminal Met
Purity >97% by SDS-PAGE and quantitative densitometry by Coomassie® Blue staining.
Activity Determined by a cell proliferation assay using mouse M-NFS-60 cells. The ED50 for this effect is typically <10 ng/mL.
Formulation Lyophilized from sterile PBS with Trehalose, pH 7.4
Endotoxin Level <0.002 EU/1ug of the protein as determined by the LAL method.
Shipping Shipped at ambient temperature.
Stability & Storage 12 months from date of receipt at -20°C to -70°C, lyophilized powder. 3 months at -20°C to -70°C under sterile conditions after reconstitution. Avoid repeated freeze-thaw cycles.
Reconstitution Reconstitute at 100 ug/mL in sterile PBS.
Target Function Macrophage Colony-stimulating Factor (M-CSF), also known as CSF-1, is a cytokine with roles in the growth, differentiation, and survival of monocytes and macrophages. M-CSF promotes the differentiation of monocytes into mature tissue-resident macrophages involved in the phagocytosis of pathogens, clearance of debris, and secretion of growth factors for tissue repair. In addition, M-CSF is involved in regulating bone homeostasis by stimulating osteoclast differentiation and activity. M-CSF is primarily produced by monocytes and macrophages themselves. It acts in an autocrine and paracrine manner to regulate the proliferation, differentiation, and survival of these cells. However, M-CSF is also produced in bone marrow stromal cells, fibroblasts and endothelial cells as a component in the local microenvironmental regulation of the immune cell function. M-CSF is often highly expressed in the tumor microenvironment where it recruits tumor-associated macrophages (TAMs) that suppress the native immune response leading to tumor progression and infiltration. M-CSF binds M-CSF R (CD115), a Receptor Tyrosine Kinase (RTK) family III member.
Tissue Specificity Bone marrow stromal cells, spleen, vascular endothelial cells, endometrial secretory epithelium, respiratory and gastrointestinal epithelial cells, and synovial fibroblasts.
Cellular Localization Membrane-bound and cleaved soluble protein forms
Involvement In Disease Dysregulation of M-CSF is implicated in autoimmune disorders (rheumatoid arthritis, atherosclerosis, inflammatory bowel disease), osteoporosis, cancer tumor progression, cancer immune evasion, monocytic leukemia and neuroinflammatory processes in Alzheimer’s disease and multiple sclerosis.

FAQs

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Proteins are sensitive to heat, and freeze-drying can preserve the activity of the majority of proteins. It improves protein stability, extends storage time, and reduces shipping costs. However, freeze-drying can also lead to the loss of the active portion of the protein and cause aggregation and denaturation issues. Nonetheless, these adverse effects can be minimized by incorporating protective agents such as stabilizers, additives, and excipients, and by carefully controlling various lyophilization conditions.

Commonly used protectant include saccharides, polyols, polymers, surfactants, some proteins and amino acids etc. We usually add 8% (mass ratio by volume) of trehalose and mannitol as lyoprotectant. Trehalose can significantly prevent the alter of the protein secondary structure, the extension and aggregation of proteins during freeze-drying process; mannitol is also a universal applied protectant and fillers, which can reduce the aggregation of certain proteins after lyophilization.

Our protein products do not contain carrier protein or other additives (such as bovine serum albumin (BSA), human serum albumin (HSA) and sucrose, etc., and when lyophilized with the solution with the lowest salt content, they often cannot form A white grid structure, but a small amount of protein is deposited in the tube during the freeze-drying process, forming a thin or invisible transparent protein layer.

Reminder: Before opening the tube cap, we recommend that you quickly centrifuge for 20-30 seconds in a small centrifuge, so that the protein attached to the tube cap or the tube wall can be aggregated at the bottom of the tube. Our quality control procedures ensure that each tube contains the correct amount of protein, and although sometimes you can't see the protein powder, the amount of protein in the tube is still very precise.

To learn more about how to properly dissolve the lyophilized recombinant protein, please visit Lyophilization FAQs.

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