Mouse SIGNR1 HEK293 Overexpression Lysate

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Mouse SIGNR1 HEK293 Overexpression Lysate: Product Information

Product Description
This Mouse SIGNR1 overexpression lysate was created in HEK293 Cells and intented for use as a Western blot (WB) positive control. Purification of SIGNR1 protein (Cat: 50486-M07H) from the overexpression lysate was verified.
Expression Host
HEK293 Cells
Species
Mouse
Sequence Information
A DNA sequence encoding the extracellular domain of mouse CD209B isoform 1 (NP_081248.2) (Gln 74-Gly 325) was fused with a polyhistidine tag at the N-terminus.
Molecule Mass
The recombinant mouse CD209B comprises 268 amino acids and predicts a molecular mass of 31.4 kDa. As a result of glycosylation, the apparent molecular mass of mouse CD209B is approximately 40 kDa in SDS-PAGE under reducing conditions.

Mouse SIGNR1 HEK293 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.

Mouse SIGNR1 HEK293 Overexpression Lysate: Alternative Names

Mouse 1810030I22Rik Overexpression Lysate; Mouse DC-SIGNR1 Overexpression Lysate; Mouse mSIGNR1 Overexpression Lysate; Mouse OtB7 Overexpression Lysate; Mouse SIGNR1 Overexpression Lysate

SIGNR1 Background Information

The cluster of differentiation (CD) system is commonly used as cell markers in immunophynotyping. Different kinds of cells in the immune system can be identified through the surface CD molecules which associating with the immune function of the cell. There are more than 32 CD unique clusters and subclusters have been identified. Some of the CD molecules serve as receptors or ligands important to the cell through initiating a signal cascade which then alter the behavior of the cell. Some CD proteins do not take part in cell signal process but have other functions such as cell adhesion. CD29b, also known as SIGNR1, is a C-type lectin receptor. CD29b is present on most regions of mouse brain and found on microglia and dendritic cells but not on neurons or astrocytes. CD29b is implicated in the recently described SIGNR1 complement activation pathway, which operates against capsular polysaccharides in splenic marginal macrophages. CD29b in rat is homologue to SIGNR1 in mouse, both of which are found to mediate the uptake of dextran or CPS14 within the splenic marginal zone.
Full Name
CD209b antigen
References
  • Zola H, et al. (2007) CD molecules 2006-human cell differentiation molecules. J Immunol Methods. 318 (1-2): 1-5.
  • Ho IC, et al. (2009) GATA3 and the T-cell lineage: essential functions before and after T-helper-2-cell differentiation. Nat Rev Immunol. 9 (2): 125-35.
  • Matesanz-Isabel J, et al. (2011) New B-cell CD molecules. Immunology Letters.134 (2): 104-12.
  • Park JY, et al. (2009) The C-type lectin CD209b is expressed on microglia and it mediates the uptake of capsular polysaccharides of Streptococcus pneumonia. Neuroscience Letters. 450 (3): 246-51.
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