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ActoFactor™ Recombinant Human Alpha-2-HS-glycoprotein
- Specification
Cat.No.
CSC-CTK0623
Description
Fetuin A/AHSG is a human plasma glycoprotein belonging to the Cystatin family of proteases inhibitors. It is highly expressed in embryonic cells and adult hepatocytes, and is expressed to a lesser extent in monocytes/macrophages. Fetuin A/AHSG is a major serum protein component that exerts various calcium dependent physiological activities, and can mediate growth signaling in certain tumor cells. It also can act as a natural antagonist against specific TGF-beta and BMP signaling proteins. Recombinant human Fetuin A is a heterodimeric protein containing a 282 amino acid A chain and a 27 amino acid B chain. Due to glycosylation, recombinant Fetuin A migrates at an apparent molecular weight of 45 – 55 kDa by SDS-PAGE run under non-reducing conditions.
Species
Human
Product Overview
Human AHSG expressed in HEK293 cells
Molecular Mass
N/A
Size
CAT# CSC-CTK0623-50 (50 μg); CAT# CSC-CTK0623-250 (250 μg)
Expression System
HEK293 cells
Purity
Greater than 95% as determined by SDS-PAGE and RP-HPLC analysis.
Activity
Determined by its ability to inhibit Cathespin V cleavage of a fluorogenic peptide substrate Z-LR- AMC (RLUs). The expected IC?? is ≤100 nM.
Endotoxin Level
Less than 1 EU/μg.
Formulation
Sterile-filtered through a 0.2 micron filter and ly ophilized from 10 mM sodium phosphate (pH 7.8).
Reconstitution
Please centrifuge product briefly before opening vial. The lyophilized protein should be reconstituted in sterile, ultra-pure water to a concentration of 0.1-1.0 mg/ml. This solution can then 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 desiccated 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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