M-CSF/CSF1 Protein (AA 33-262)

Catalog No. ABIN2666672

This Recombinant M-CSF/CSF1 protein is expressed in HEK-293 Cells.

Quick Overview for M-CSF/CSF1 Protein (AA 33-262) (ABIN2666672)

Target: M-CSF/CSF1 (CSF1) (Colony Stimulating Factor 1 (Macrophage) (CSF1))

Protein Type: Recombinant

Biological Activity: Active

Origin: Mouse

Source: HEK-293 Cells

Application: Flow Cytometry (FACS)

Purity: > 98 % , as determined by Coomassie stained SDS-PAGE.

Product Details

Protein Characteristics: AA 33-262

Sterility: 0.22 μm filtered

Endotoxin Level:

Less than 0.01 ng per μg cytokine as determined by the LAL method.

Application Details

Application Notes: Optimal working dilution should be determined by the investigator.

Comment:

Biological activity: ED50 =2 - 6 ng/ml, corresponding to a specific activity of 1.6 - 5 x 105 units/mg, as determined by M-NFS60 cell proliferation induced by mouse M-CSF in a dose dependent manner.

Restrictions: For Research Use only

Handling

Format: Liquid

Reconstitution: For maximum results, quick spin vial prior to opening. The protein can be aliquoted and stored from -20 °C to -70 °C. Stock solutions can also be prepared at 50-100 μg/mL in sterile buffer (PBS, HPBS, DPBS, or EBSS) containing carrier protein such as 0.2-1 % BSA or HSA and stored in working aliquots at -20 °C to -70 °C.

Buffer: 0.22 μm filtered protein solution is in PBS.

Handling Advice: Avoid repeated freeze/thaw cycles.

Storage: -20 °C

Storage Comment: Unopened vial can be stored between 2°C and 8°C for one month, at -20°C for six months, or at -70°C for one year.

Target Details

Target: M-CSF/CSF1 (CSF1) (Colony Stimulating Factor 1 (Macrophage) (CSF1))

Alternative Name: M-CSF

Background: M-CSF was first characterized as a glycoprotein that induces monocyte and macrophage colony formation from precursors in murine bone marrow cultures. M-CSF binds CD14+ monocytes and promotes the survival/proliferation of peripheral blood monocytes. In addition, M-CSF enhances inducible monocyte functions including phagocytic activity, microbial killing, and cytotoxicity for tumor cells as well as induces the synthesis of inflammatory cytokines such as IL-1, TNFα, and IFNγ in monocytes. Multiple CSF1 mRNA species have been described that arise from alternative splicing in exon 6 and the alternative use of the 3' end of exons 9 or 10. As a result, two distinct CSF1 protein products are encoded by these transcripts: a cell-surface or membrane-bound form of CSF1 (mCSF1) and a soluble form (sCSF1). Uterine sCSF1 is highly increased during pregnancy. On the contrary, uterine mCSF1 remains low during pregnancy. High levels of M-CSF have been associated to different pathologies such as pulmonary fibrosis and atherosclerosis. M-CSF binds to its receptor M-CSFR, and this receptor is shared by a second ligand, IL-34. Mouse M-CSF and IL-34 exhibit cross-species specificity, both bind to the human and mouse M-CSF receptors. IL-34 can regulate myeloid development and substitute for CSF-1 in vivo. IL-34 has overlapping but not identical biological activities as M-CSF.

Molecular Weight: The 251 amino acid recombinant protein has a predicted molecular mass of approximately 28.2 kDa. The DTT-reduced and non-reduced protein migrate at approximately 50 kDa and 100 kDa respectively by SDS-PAGE. The N-terminal contains a His9-(SGGG)2-IEGR-tag.

Pathways: RTK Signaling