Biotinylated Human PCSK9 Protein (C-Avi)
Beta LifeScience
SKU/CAT #: BL-2048NP
BL-2048NP: Greater than 95% as determined by reducing SDS-PAGE. (QC verified)
Biotinylated Human PCSK9 Protein (C-Avi)
Beta LifeScience
SKU/CAT #: BL-2048NP
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Product Overview
| Description | Biotinylated Recombinant Human Proprotein Convertase Subtilisin/Kexin Type 9 is produced by our Mammalian expression system and the target gene encoding Gln31-Gln692(Val474Ile,Gly670Glu) is expressed with a Avi tag at the C-terminus. |
| Accession | Q8NBP7 |
| Synonym | Proprotein Convertase Subtilisin/Kexin Type 9; Neural Apoptosis-Regulated Convertase 1; NARC-1; Proprotein Convertase 9; PC9; Subtilisin/Kexin-Like Protease PC9; PCSK9; NARC1 |
| Gene Background | Human Proprotein Convertase Subtilisin/Kexin Type 9 (PCSK9) is a secretory subtilase belonging to the proteinase K subfamily. PCSK9 is synthesized as a soluble zymogen that undergoes autocatalytic intramolecular processing in the ER , the pro domain and mature chain secrete together through noncovalent interactions. PCSK9 binds with low-density lipoprotein receptor (LDLR) and plays a major regulatory role in cholesterol homeostasis. Inhibition of PCSK9 function by preventing PCSK9/LDLR interaction is currently being explored as a means of lowering cholesterol levels. PCSK9 also binds to apolipoprotein receptor 2 (ApoER2), and play a role in the neural development. |
| Molecular Mass | 14&59 KDa |
| Apmol Mass | 19&65 KDa, reducing conditions |
| Formulation | Supplied as a 0.2 μm filtered solution of 50mM HEPES, 150mM NaCl, 20% Glycerol, pH 7.4. |
| Endotoxin | Less than 0.1 ng/µg (1 EU/µg) as determined by LAL test. |
| Purity | Greater than 95% as determined by reducing SDS-PAGE. (QC verified) |
| Biological Activity | Not tested |
| Reconstitution | |
| Storage | Store at ≤-70°C, stable for 6 months after receipt. Store at ≤-70°C, stable for 3 months under sterile conditions after opening. Please minimize freeze-thaw cycles. |
| Shipping | The product is shipped on dry ice/polar packs. Upon receipt, store it immediately at the temperature listed below. |
| Usage | For Research Use Only |
Target Details
| Target Function | Crucial player in the regulation of plasma cholesterol homeostasis. Binds to 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 in intracellular acidic compartments. 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. Can induce ubiquitination of LDLR leading to its subsequent degradation. Inhibits intracellular degradation of APOB via the autophagosome/lysosome pathway in a LDLR-independent manner. Involved in the disposal of non-acetylated intermediates of BACE1 in the early secretory pathway. Inhibits epithelial Na(+) channel (ENaC)-mediated Na(+) absorption by reducing ENaC surface expression primarily by increasing its proteasomal degradation. Regulates neuronal apoptosis via modulation of LRP8/APOER2 levels and related anti-apoptotic signaling pathways. |
| Subcellular Location | Cytoplasm. Secreted. Endosome. Lysosome. Cell surface. Endoplasmic reticulum. Golgi apparatus. Note=Autocatalytic cleavage is required to transport it from the endoplasmic reticulum to the Golgi apparatus and for the secretion of the mature protein. Localizes to the endoplasmic reticulum in the absence of LDLR and colocalizes to the cell surface and to the endosomes/lysosomes in the presence of LDLR. The sorting to the cell surface and endosomes is required in order to fully promote LDLR degradation. |
| Protein Families | Peptidase S8 family |
| Database References | |
| Associated Diseases | Hypercholesterolemia, autosomal dominant, 3 (HCHOLA3) |
| Tissue Specificity | Expressed in neuro-epithelioma, colon carcinoma, hepatic and pancreatic cell lines, and in Schwann cells. |
Gene Functions References
- The present study shows that serum PCSK9 levels, but not PCSK9 polymorphisms, are associated with coronary artery disease risk in Southern Chinese Han population, and that serum PCSK9 levels are positively associated with AIP PMID: 30205809
- In Japanese male subjects, the concentrations of serum PCSK9 and TBIL were correlated with periodontal parameters. PMID: 29516504
- C679X loss-of-function PCSK9 variant lowers fasting glucose levels. PMID: 30227170
- There was no protective or no deleterious effect of carrying PCSK9 LOF mutations on AD [Alzheimer disease]prevalence nor on age of onset, even when stratified by apolipoprotein E epsilon 4 genotype or by gender. Conclusion: Our data indicate that carrying PCSK9 LOF mutations has a neutral effect on neurocognitive health and the prevalence of AD [Alzheimer disease]. PMID: 29562810
- High serum PCSK9 levels predict acute coronary syndrome occurrence at 24-month follow-up after carotid endarterectomy in patients with severe carotid artery stenosis. PMID: 29754909
- Taken together, the present study provides evidence of a pro-inflammatory action of PCSK9 on macrophages, mainly dependent by the LDLR. PMID: 29396513
- HepG2 cell lines transfected with siRNA directed to PCSK9 were challenged with Hcy, homocysteine thiolactone (HTL), testosterone, 5alpha-dihydroxytestosterone (5alpha-DHT), or estradiol for 24h, leading to an overt expression of PCSK9 and down-regulated expression of LDLR. PMID: 29660344
- Plasma PCSK9 levels and lipoprotein distribution are preserved in hypolipoproteinemia carriers. PMID: 29852278
- Inverse correlation between PCSK9 and CD36 in hypertrophic adipocytes may be associated with AAA development. PMID: 30210081
- Plasma Lp(a) level was associated with PCSK9 in patients with heterozygous familial hypercholesterolemia PMID: 29129821
- Authors performed an analysis of public databases and literature for every variant published associated with FH, in the genes LDLR, APOB, and PCSK9. PMID: 29261184
- PCSK9 levels increase as glucose metabolism deteriorated. Serum PCSK9 levels positively correlated with 2-hPG (2-h postchallenge plasma glucose) in Chinese Han patients with glucose metabolic diseases. PMID: 29343301
- PCSK9i-treated patients had higher rates of cardiovascular comorbidities. PMID: 28849360
- PCSK9 overexpression in the aorta may promote acute aortic dissection. PMID: 29197601
- High PCSK9 expression is associated with metabolic syndrome. PMID: 28283395
- A positive association between plasma PCSK9 concentration and coronary artery calcification in untreated patients with angina-like chest pain was observed in our study, suggesting that further investigation may be needed in order to confirm our primary findings and explore the clinical implications PMID: 28166668
- In conclusion, PCSK9 inhibitors such as alirocumab may be an excellent lipid lowering agent in patients with statin intolerance and myotonic dystrophy. PMID: 29056268
- Obesity and type 2 diabetes were associated with significantly higher serum levels in young women, but not in young men PMID: 28093849
- Reduction of LDL-C With PCSK9 Inhibition in Heterozygous Familial Hypercholesterolemia Disorder (RUTHERFORD; phase 2) and RUTHERFORD-2 (phase 3). PMID: 29066265
- We present a case of homozygous familial defective apolipoprotein B-100 due to APOB R3500Q (rs5742904) treated with evolocumab ..Identification of a patient homozygous for familial defective apolipoprotein B-100(FDB) and successful treatment with PCSK9 inhibition PMID: 28988723
- A complex link between hepatitis C virus infection and PCSK9 has emerged, in which a bidirectional loop of interactions is conceivable. (Review) PMID: 28722331
- Genetically determined PCSK9 deficiency might be associated with ectopic fat accumulation. PMID: 28758421
- These results suggest that PCSK9 rs7552841 is associated with plasma lipids profiles only in female adolescents, but not in male students. This association can be modified and negated by posttraumatic stress disorder. PMID: 29081489
- PCSK9 carriers tended to be associated with an increased response to simvastatin therapy PMID: 28851085
- PCSK9 polymorphism may affect HIV pathogenesis, particularly in HIV/hepatitis C coinfected women. A likely mechanism for this effect is PCSK9-mediated regulation of cholesterol metabolism. PMID: 29120899
- There was no relationship between plasma PCSK9 levels and arterial stiffness. PMID: 28816230
- PCSK9 variants associated with lower LDL cholesterol were also associated with circulating higher fasting glucose concentration, body weight and an increased risk of type 2 diabetes. PMID: 27908689
- ABGL4, LRP8 and PCSK9 polymorphisms and gene interactions increase cardiometabolic risk. PMID: 27853278
- these results provide insights into a novel coordinated interplay among three important molecular players in lipid homeostasis - circulating miR-24, miR-223 and PCSK9 - whose regulation is affected by HCV infection and treatment-based viral cure. PMID: 28864162
- The present study aimed to explore the direct toxicity of proprotein convertase subtilisin/kexin type 9 (PCSK9) to atherosclerosis (AS) and its association with apoptotic endothelial cells. PMID: 28656218
- The minor allele frequency of the PCSK9 A443T, I474V, E670G, and C679X polymorphisms in healthy and malaria-infected Malian children was 0.12, 0.20, 0.26, and 0.02, respectively. 17.6% of subjects carried two of the four SNPs examined. Carriers of the minor allele of the E670G PCSK9 polymorphism might be more susceptible to severe malaria. PMID: 29447211
- Circulating PCSK9 concentration as a continuous variable was not significantly associated with the risk of cardiovascular events. More well-designed studies are needed to clarify the role of PCSK9 in cardiovascular risk. PMID: 28413188
- Data indicate that the elevation in plasma apoB-48 levels associated with FH is independent of PCSK9 levels. PMID: 28619117
- we discuss current experimental and clinical evidence of the role of PCSK9 and its inhibition on lipid metabolism and several pathologic conditions with a focus on clinical outcomes--{REVIEW} PMID: 27533061
- The E670G polymorphism of the PCSK9 gene is associated with the lipid levels and risk for coronary heart disease. PMID: 28981947
- Here, we assess the available evidence for the association of PCSK9 status with the incidence and control of diabetes mellitus in preclinical and clinical studies, and identify molecular mechanisms regulating PCSK9 expression in the diabetic state. [Review] PMID: 28111330
- These results demonstrated the molecular mechanisms of how HCV modulates PCSK9 promoter activity and advanced our understanding on the mutual interactions between HCV and PCSK9. PMID: 29397939
- These findings provide useful information for researchers interested in the fields of PCSK9 genetics and cardiovascular risk prediction not only for designing future studies, but also for clinical and public health applications PMID: 28606094
- Circulating PCSK9 is significantly related to arterial stiffness, independent of sex and menopausal status in women. PMID: 28468788
- Study demonstrated PCSK9 as a direct target of miR-224 and increased miR-224 or decreased PCSK9 could promote apoptosis and suppress proliferation, invasion of tumor cell line in pancreatic neuroendocrine neoplasms. PMID: 28036293
- There are no associations between PCSK9 levels and either glucose or lipid homeostasis parameters. Nevertheless, a statistically significant link was observed between PCSK9 and markers of insulin homeostasis, solely in CF patients who presented normal glucose tolerance. PMID: 28447578
- PCSK9 interacts with heparan sulfate proteoglycans.Heparan sulfate proteoglycans binding is required for PCSK9-induced LDLR degradation. PMID: 28894089
- The results of this study suggest that these biomarker PCSK9 can serve as a potential non-invasive early diagnosis platform reflecting PiB-PET imaging for Mild Cognitive Impairment and Alzheimer's Disease. PMID: 27392853
- PCSK9 is not altered specifically in PCOS. PMID: 29109005
- A high-throughput time-resolved fluorescence resonance energy transfer assay for autocleavage has been developed using a PCSK9 monoclonal antibody that is sensitive to the conformational changes that occur upon maturation of the proprotein. PMID: 27412534
- These studies provide a definitive characterization of the composition and activity of the truncated form of PCSK9 found in human serum PMID: 24776539
- PCSK9 loss-of-function variants were associated with a pooled odds ratio for coronary heart disease of 0.51 in blacks and 0.82 in whites. PMID: 28768753
- Mature PCSK9 associated with atheroma volume and impaired vessel remodeling in HeFH patients with coronary artery disease PMID: 28502498
- Despite having lower LDL-C, circulating PCSK9 levels were increased in patients coinfected with HIV and HCV in parallel with elevations in the inflammatory, proatherogenic cytokine interleukin-6. PMID: 27130349
- Circulating PCSK9 is associated with New-onset diabetes after transplantation (NODAT) in renal transplant recipients. The PCSK9 pathway may contribute to the pathogenesis of NODAT. PMID: 28461454
