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 >  Protein>PCSK9 >PC9-H5256

Human PCSK9 Protein, Fc Tag

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分子别名(Synonym)

PCSK9,FH3,HCHOLA3,LDLCQ1,NARC1,PC9

表达区间及表达系统(Source)

Human PCSK9, Fc Tag (PC9-H5256) is expressed from human 293 cells (HEK293). It contains AA Gln 31 - Gln 692 (Accession # Q8NBP7-1).

Predicted N-terminus: Gln 31

Request for sequence

蛋白结构(Molecular Characterization)

PCSK9 Structure

This protein carries a human IgG1 Fc 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 83.7 kDa respectively. The protein migrates as 16 kDa and 100 kDa under reducing (R) condition (SDS-PAGE) due to glycosylation.

内毒素(Endotoxin)

Less than 1.0 EU per μg by the LAL method.

纯度(Purity)

>90% as determined by SDS-PAGE.

制剂(Formulation)

Lyophilized from 0.22 μm filtered solution in PBS, pH7.4 with trehalose as protectant.

Contact us for customized product form or formulation.

重构方法(Reconstitution)

Please see Certificate of Analysis for specific instructions.

For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.

存储(Storage)

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:

  1. -20°C to -70°C for 12 months in lyophilized state;
  2. -70°C for 3 months under sterile conditions after reconstitution.
 

电泳(SDS-PAGE)

PCSK9 SDS-PAGE

Human PCSK9, Fc Tag on SDS-PAGE under reducing (R) condition. The gel was stained with Coomassie Blue. The purity of the protein is greater than 90%.

 

活性(Bioactivity)-ELISA

PCSK9 ELISA

Immobilized Human VLDL R, His Tag (Cat. No. VLR-H5227) at 5 μg/mL (100 μL/well) can bind Human PCSK9, Fc Tag (Cat. No. PC9-H5256) with a linear range of 1-10 ng/mL (QC tested).

Protocol

PCSK9 ELISA

Immobilized Human PCSK9, Fc Tag (Cat. No. PC9-H5256) at 5 μg/mL (100 μL/well) can bind Biotinylated Human LDL R, His Tag, Avi Tag (Cat. No. LDR-H82E7) with a linear range of 0.04-0.625 μg/mL (Routinely tested).

Protocol

 

活性(Bioactivity)-BLI

PCSK9 BLI

Loaded Human PCSK9, Fc Tag (Cat. No. PC9-H5256) on Protein A Biosensor, can bind Human LDL R, His Tag (Cat. No. LDR-H5224) with an affinity constant of 12.7 nM as determined in BLI assay (ForteBio Octet Red96e) (Routinely tested).

Protocol

 

背景(Background)

Proprotein convertase subtilisin/kexin type 9 (PCSK9) is also known as NARC1 (neural apoptosis regulated convertase), is a newly identified subtilase belonging to the peptidase S8 subfamily. Mouse PCSK9 is synthesized as a soluble zymogen, and undergoes autocatalytic intramolecular processing in the endoplasmic reticulum, resulting in the cleavage of its propeptide that remains associated with the secreted active enzyme with a broad alkaline pH optimum. This protein plays a major regulatory role in cholesterol homeostasis. PCSK9 binds to the epidermal growth factor-like repeat A (EGF-A) domain of the low-density lipoprotein receptor (LDLR), inducing LDLR degradation. PCSK9 may also have a role in the differentiation of cortical neurons. Mutations in this gene have been associated with a rare form of autosomal dominant familial hypercholesterolemia (HCHOLA3).

 

前沿进展

 
 
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PCSK9靶点信息
英文全称:Proprotein convertase subtilisin kexin type 9
中文全称:前蛋白转化酶枯草杆菌蛋白酶Kexin-9
种类:Homo sapiens
上市药物数量:4详情
临床药物数量:27详情
最高研发阶段:批准上市
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