Cited by 517Lipoproteins and Cardiovascular HealthLipid metabolism and disordersCholesterol and Lipid Metabolism

A Spectrum of PCSK9 Alleles Contributes to Plasma Levels of Low-Density Lipoprotein Cholesterol

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Kotowski, Ingrid K., Pertsemlidis, Alexander, Luke, Amy, Cooper, Richard S., Vega, Gloria L., Cohen, Jonathan C., Hobbs, Helen H.·2006·The American Journal of Human Genetics

Abstract

Selected missense mutations in the proprotein convertase subtilisin/kexin type 9 serine protease gene (PCSK9) cause autosomal dominant hypercholesterolemia, whereas nonsense mutations in the same gene are associated with low plasma levels of low-density lipoprotein cholesterol (LDL-C). Here, DNA sequencing and chip-based oligonucleotide hybridization were used to determine whether other sequence variations in PCSK9 contribute to differences in LDL-C levels. The coding regions of PCSK9 were sequenced in the blacks and whites from the Dallas Heart Study (n=3,543) who had the lowest (<5th percentile) and highest (>95th percentile) plasma levels of LDL-C. Of the 17 missense variants identified, 3 (R46L, L253F, and A443T) were significantly and reproducibly associated with lower plasma levels of LDL-C (reductions ranging from 3.5% to 30%). None of the low-LDL-C variants were associated with increased hepatic triglyceride content, as measured by proton magnetic resonance spectroscopy. This finding is most consistent with the reduction in LDL-C being caused primarily by accelerating LDL clearance, rather than by reduced lipoprotein production. Association studies with 93 noncoding single-nucleotide polymorphisms (SNPs) at the PCSK9 locus identified 3 SNPs associated with modest differences in plasma LDL-C levels. Thus, a spectrum of sequence variations ranging in frequency (from 0.2% to 34%) and magnitude of effect (from a 3% increase to a 49% decrease) contribute to interindividual differences in LDL-C levels. These findings reveal that PCSK9 activity is a major determinant of plasma levels of LDL-C in humans and make it an attractive therapeutic target for LDL-C lowering.

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Crossref · 10.1086/500615

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  • The gene encoding PCSK9 contains very rare mutations causing autosomal dominant hypercholesterolemia and high-frequency common variants with modest effects.

    “The gene encoding PCSK9 contains very rare mutations causing autosomal dominant hypercholesterolemia (discovered by linkage analysis), as well as high-frequency common variants with modest effects.”

    From Genetic Mapping in Human Disease (2008) · cites this paper as [126]

  • Hobbs and Cohen identified low-frequency common variants in PCSK9 at 0.5 to 1%, which allowed epidemiological research documenting a protective effect on myocardial infarction.

    “Hobbs and Cohen sequenced the gene (126, 127) and identified low-frequency common variants (0.5 to 1%), which allowed epidemiological research documenting a protective effect on myocardial infarction (128).”

    From Genetic Mapping in Human Disease (2008) · cites this paper as [126]

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Authors
Kotowski, I. K., Pertsemlidis, A., Luke, A., Cooper, R. S., Vega, G. L., Cohen, J. C., & Hobbs, H. H.
Affiliations
  • Howard Hughes Medical Institute (US)
  • Loyola University Medical Center (US)
Corresponding author
Hobbs, Helen H.
Venue
The American Journal of Human Genetics
Publisher
Elsevier BV
Published
2006-03
Volume
78
Issue
3
Pages
410-422
ISSN
0002-9297 (ISSN-L)
OpenAlex
W2110124859
Cited by
517
References
38
Citations by year
2026: 13 · 2025: 8 · 2024: 10 · 2023: 13 · 2022: 15 · 2021: 18 · 2020: 19 · 2019: 30 · 2018: 26 · 2017: 24 · 2016: 23 · 2015: 34 · 2014: 35 · 2013: 22 · 2012: 26
FWCI
44.73
Type
journal article
Language
en
Open access
Locations
  • The American Journal of Human Genetics (publishedVersion)
  • PubMed (publishedVersion)
  • Civil War Book Review (submittedVersion)
Funders
  • U.S. Department of Veterans Affairs
  • Donald W. Reynolds Foundation
  • National Heart, Lung, and Blood Institute (HL-20948, P01HL020948)
Topics
  • Health Sciences › Medicine › Surgery › Lipoproteins and Cardiovascular Health
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Lipid metabolism and disorders
  • Health Sciences › Medicine › Surgery › Cholesterol and Lipid Metabolism
Keywords
PCSK9, LDL cholesterol, missense mutations, LDL cholesterol lowering, autosomal dominant hypercholesterolemia, LDL clearance, hepatic triglyceride content, single nucleotide polymorphisms, genetic variants, Dallas Heart Study, LDL-C lowering therapy
MeSH terms
Proprotein Convertase 9, Alleles, Amino Acid Sequence, Female, Gene Frequency, Haplotypes, Humans, Hypercholesterolemia, Cholesterol, LDL, Male, Molecular Sequence Data, Mutation, Serine Endopeptidases, Evolution, Molecular, Polymorphism, Single Nucleotide, Proprotein Convertases

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