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ActoFactor™ Recombinant Human Selectin L
- Specification
Cat.No.
CSC-CTK0651
Description
L-selectin belongs to a family of divalent cation-dependent carbohydrate-binding glycoproteins or adhesion molecules. The L-selectin molecule is composed of various domains: one homologous to lectins, one to epidermal growth factor, and two to the consensus repeat units found in C3/C4 binding proteins. L-selectin is expressed constitutively on lymphocytes, monocytes and granulocytes and interacts specifically with carbohydrate groups on activated endothelial cells. It may be shed by proteolytic cleavage and circulating levels in biological fluids may be used as an indicator of various pathological conditions. L-selectin is cleaved by ADAM17. L-selectin works as a "homing receptor" for leukocytes to enter secondary lymphoid tissues via the high endothelial venules. Ligands present on endothelial cells will attach to leukocytes expressing L-selectin, which causes the leukocytes to become localized at that juncture. The receptor is also located on the cell surfaces of "naive" T cells, which have not yet encountered their particular antigen. This surface expression is lost following the cells activation.Human recombinant L-selectin produced in E. coli contains 294 amino acids 39-332 which are fused to an amino-terminal hexa-histidine tag.
Species
Human
Product Overview
Human SELL expressed in E.coli
Molecular Mass
N/A
Size
CAT# CSC-CTK0651-10 (10 μg); CAT# CSC-CTK0651-50 (50 μg)
Expression System
E.coli
Purity
Greater than 95% as determined by SDS-PAGE analysis.
Activity
N/A
Endotoxin Level
N/A
Formulation
Sterile-filtered, liquid formulation. L-selectin is supplied in 50% glycerol.
Reconstitution
Please centrifuge product briefly before opening vial. The protein solution can be diluted into other aqueous buffers and stored at -20°C for future use.
Storage & Stability
The lyophilized protein, though stable at room temperature for up to 3 weeks, is best stored dessicated at -20°C. Reconstituted protein should be used immediately or stored long-term in undiluted working aliquots at –20°C. For long term storage, it is recommended to add a carrier protein (0.1% HSA or BSA). Avoid repeated freeze / thaw cycles.
Citation Guidance
If you use this products in your scientific publication, it should be cited in the publication as: Creative Bioarray cat no. If your paper has been published, please click here to submit the PubMed ID of your paper to get a coupon.
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