PCSK9[Biotinylated]-LDLR Binding Assay Kit

Catalog #: 72002
Size: 96 reactions
PCSK9 is a crucial player in the regulation of plasma cholesterol homeostasis. It binds to the ectodomain of hepatic low-density lipid receptor family members: low density lipoprotein receptor (LDLR), very low density lipoprotein receptor (VLDLR), apolipoprotein E receptor (LRP1/APOER) and apolipoprotein receptor 2 (LRP8/APOER2), and promotes their degradation. Acts via a non-proteolytic mechanism to enhance the degradation of the hepatic LDLR through a clathrin LDLRAP1/ARH-mediated pathway. May prevent the recycling of LDLR from endosomes to the cell surface or direct it to lysosomes for degradation.
The PCSK9[Biotinylated]-LDLR Binding Assay Kit is designed for screening and profiling purposes. The key to this kit is the high sensitivity of detection of biotin-labeled PCSK9 by streptavidin-HRP. Only a few simple steps on a microtiter plate are required for the assay. First, LDLR ectodomain is coated on a 96-well plate. Next, PCSK9 is incubated with LDLR on the plate. Finally, the plate is treated with streptavidin-HRP followed by addition of an HRP substrate to produce chemiluminescence, which can then be measured using a chemiluminescence reader.
pcsk9, cholesterol, LDL, kexin
Supplied As:
The PCSK9[Biotinylated]-LDLR Binding Assay Kit comes in a convenient 96-well format, with biotin-labeled PCSK9, purified LDLR ectodomain, streptavidin labeled HRP, and assay buffer for 96 binding reactions.
DMSO >1%, strong acids or bases, ionic detergents, high salt

Assay Kit Components

Instructions for use:
See data sheet for detailed protocol.
Storage / Stability:

Mixed storage conditions. Stable at least 12 months from date of receipt, when stored as directed

Great for screening small molecules and antibodies that inhibit the binding of PCSK9 to LDLR ectodomain.

1. Chan, J.C. et al. (2009). Proc. Natl Acad. Sci. USA, 106, 9820-9825.
2. Liang, H., et al. (2012) J. Pharmacol. Exp. Ther. 340 2289-236

Application Reference(s):
1. Heparan sulfate proteoglycans present PCSK9 to the LDL receptor (2017)

Avoid freeze/thaw cycles
Scientific Category:
Cholesterol Related
Product Type:
Assay Kit
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