Human CSF1R Baculovirus-Insect cells Overexpression Lysate

Cat: 10161-H20B2L
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Human CSF1R Baculovirus-Insect cells Overexpression Lysate Product Information
Product Description
This Human CSF1R overexpression lysate was created in Baculovirus-Insect cells and intented for use as a Western blot (WB) positive control. Purification of CSF1R protein (Cat: 10161-H20B2) from the overexpression lysate was verified.
Expression Host
Baculovirus-Insect cells
Species
Human
Sequence Information
A DNA sequence encoding the human CSF1R (NP_005202.2) cytoplasmic domain (Lys 543-Asp 922) was fused with the N-terminal polyhistidine-tagged GST tag at the N-terminus. A DNA sequence encoding the human CSF1R (NP_005202.2) cytoplasmic domain (Lys 543-Asp 922) was fused with the N-terminal polyhistidine-tagged GST tag at the N-terminus.
Molecule Mass
The recombinant human CSF1R (aa 543-922) /GST chimera consists of 617 amino acids and has a calculated molecular mass of 71 KDa. It migrates as an approximately 60 KDa band in SDS-PAGE under reducing conditions.
Human CSF1R Baculovirus-Insect cells Overexpression Lysate Usage Guide
Preparation Method
Cell lysate was prepared by homogenization of the over-expressed cells in ice-cold modified RIPA Lysis Buffer with cocktail of protease inhibitors (Sigma). Cell debris was removed by centrifugation. Protein concentration was determined by Bradford assay (Bio-Rad protein assay, Microplate Standard assay). The cell lysate was boiled for 5 min in 1 x SDS loading buffer (50 mM Tris-HCl pH 6.8, 12.5% glycerol, 1% sodium dodecylsulfate, 0.01% bromophenol blue) containing 5% b-mercaptoethanol, and lyophilized.
Lysis Buffer
Modified RIPA Lysis Buffer: 50 mM Tris-HCl pH 7.4, 150 mM NaCl, 1mM EDTA, 1% Triton X-100, 0.1% SDS, 1% Sodium deoxycholate, 1mM PMSF.
Recommend Usage
1.  Centrifuge the tube for a few seconds and ensure the pellet at the bottom of the tube. 2.  Re-dissolve the pellet using 200μL pure water and boil for 2-5 min.
Sample Buffer
1 X Sample Buffer (1 X modified RIPA buffer+1 X SDS loading buffer).
Stability & Storage
Store at 4℃ for up to twelve months from date of receipt. After re-dissolution, aliquot and store at -80℃ for up to twelve months. Avoid repeated freeze-thaw cycles.
Application
Western Blot (WB)
Optimal dilutions/concentrations should be determined by the end user.
Human CSF1R Baculovirus-Insect cells Overexpression Lysate Alternative Names
Human C-FMS Overexpression Lysate;Human CD115 Overexpression Lysate;Human CSF-1R Overexpression Lysate;Human CSFR Overexpression Lysate;Human FIM2 Overexpression Lysate;Human FMS Overexpression Lysate;Human HDLS Overexpression Lysate;Human M-CSF-R Overexpression Lysate;Human MCSF Receptor Overexpression Lysate
CSF1R Background Information

M-CSFR encoded by the proto-oncogene c-fms is the receptor for colony stimulating factor 1 (CSF1R), a cytokine involved in the proliferation, differentiation, and activation of macrophages. This cell surface glycoprotein is consisted by an extracellular ligand-binding domain, a single membrane-spanning segment, and an intracellular tyrosine kinase domain. Binding of CSF1 activates the receptor kinase, leading to "autophosphorylation" of receptor subunits and the concomitant phosphorylation of a series of cellular proteins on tyrosine residues. CSF1R is a tyrosine kinase receptor that is absolutely required for macrophage differentiation and thus occupies a central role in hematopoiesis. CSF1 and its receptor (CSF1R, product of c-fms proto-oncogene) were initially implicated as essential for normal monocyte development as well as for trophoblastic implantation. This apparent role for CSF1/CSF1R in normal mammary gland development is very intriguing because this receptor/ligand pair has also been found to be important in the biology of breast cancer in which abnormal expression of CSF1 and its receptor correlates with tumor cell invasiveness and adverse clinical prognosis. Tumor cell expression of CSF1R is under the control of several steroid hormones (glucocorticoids and progestins) and the binding of several bHLH transcription factors, while tumor cell expression of CSF-1 appears to be regulated by other hormones, some of which are involved in normal lactogenic differentiation. However, studies have demonstrated that CSF1 and CSF1R have additional roles in mammary gland development during pregnancy and lactation. The role of CSF1 and CSF1R in normal and neoplastic mammary development that may elucidate potential relationships of growth factor-induced biological changes in the breast during pregnancy and tumor progression.

Full Name
colony stimulating factor 1 receptor
References
  • Sherr CJ. (1990) The colony-stimulating factor 1 receptor: pleiotropy of signal-response coupling. Lymphokine Res. 9(4): 543-8.
  • Kacinski BM. (1997) CSF-1 and its receptor in breast carcinomas and neoplasms of the female reproductive tract. Mol Reprod Dev. 46(1): 71-4.
  • Sapi E, et al. (1999) The role of CSF-1 in normal and neoplastic breast physiology. Proc Soc Exp Biol Med. 220(1): 1-8.
  • Sapi E. (2004) The role of CSF-1 in normal physiology of mammary gland and breast cancer: an update. Exp Biol Med (Maywood). 229(1): 1-11.
  • Bonifer C, et al. (2008) The transcriptional regulation of the Colony-Stimulating Factor 1 Receptor (csf1r) gene during hematopoiesis. Front Biosci. 13: 549-60.
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