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We offer IHC Antibody Products against multiple biomarker targets with sufficient validation, reliable quality, flexible authorization and service support!
This protein carries a polyhistidine tag at the C-terminus. This protein undergoes autocatalytic cleavage to release the pro-peptide and mature chain. The pro-peptide and mature chain are associated through non‑covalent interactions and with a calculated MW of 13.8 kDa and 58.2 kDa respectively. The protein migrates as 17 kDa and 66 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation. The D374Y mutation results in higher affinity of PCSK9 for LDLR.
>90% as determined by SDS-PAGE.
Lyophilized from 0.22 μm filtered solution in PBS, pH7.4 with trehalose as protectant.
Contact us for customized product form or formulation.
Please see Certificate of Analysis for specific instructions.
For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.
For long term storage, the product should be stored at lyophilized state at -20°C or lower.
Please avoid repeated freeze-thaw cycles.
This product is stable after storage at:
Human PCSK9 (D374Y), His Tag on SDS-PAGE under reducing (R) condition. The gel was stained with Coomassie Blue. The purity of the protein is greater than 90%.
Immobilized Human LDL R, Fc Tag (Cat. No. LDR-H5254) at 2 μg/mL (100 μL/well) can bind Human PCSK9 (D374Y), His Tag (Cat. No. PCY-H5225) with a linear range of 20-78 ng/mL (QC tested).
Immobilized Human PCSK9 (D374Y), His Tag (Cat. No. PCY-H5225) at 1 μg/mL (100 μL/well) on Monoclonal Anti-His Tag Antibody, Mouse IgG1 (AY63) (Cat. No. HIS-AY63) precoated (0.1 μg/well) plate can bind Evolocumab with a linear range of 0.1-4 ng/mL (Routinely tested).
Loaded Human LDL R, Fc Tag (Cat. No. LDR-H5254) on Protein A Biosensor, can bind Human PCSK9 (D374Y), His Tag (Cat. No. PCY-H5225) with an affinity constant of 0.329 nM as determined in BLI assay (ForteBio Octet Red96e) (Routinely tested).
FACS analysis shows that Human PCSK9 (D374Y), His Tag (Cat. No. PCY-H5225) inhibits LDL uptake in HepG2 cells. The EC50 for this effect is 0.0689-0.3049 μg/mL.
FACS analysis shows that the effect of Human PCSK9 (D374Y), His Tag (Cat. No. PCY-H5225) inhibiting LDL uptake in HepG2 cells was neutralized by Anti-Human PCSK9 antibody. The concentration of PCSK9 used is 5 μg/mL. The EC50 for Anti-Human PCSK9 antibody is 6.816-12.67 μg/mL.
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