The mysteries of lipoprotein(a).
Abstract
Lipoprotein(a) [Lp(a)] is a macromolecular complex found in human plasma that combines structural elements from the lipoprotein and blood clotting systems and that is associated with premature coronary heart disease and stroke. It is assembled from low-density lipoprotein (LDL) and a large hydrophilic glycoprotein called apolipoprotein(a) [apo(a)], which is homologous to the protease zymogen plasminogen. Plasma Lp(a) concentrations vary 1000-fold between individuals and represent a continuous quantitative genetic trait with a skewed distribution in Caucasian populations. Variation in the hypervariable apo(a) gene on chromosome 6q2.6-q2.7 and interaction of apo(a) alleles with defective LDL-receptor genes explain a large fraction of the variability of plasma Lp(a) concentrations. Though of high theoretical and practical interest, many aspects of the metabolism, function, evolution, and regulation of plasma concentrations of Lp(a) are presently unknown, controversial, or mysterious.
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Lp(a) has many properties in common with LDL but contains a unique protein, apolipoprotein(a), linked to apoB-100 by a single disulfide bond.
“Lp(a) has many properties in common with LDL but contains a unique protein, apolipoprotein(a), which is linked to apoB-100 by a single disulfide bond (42).”
From Evaluation and Treatment of Hypertriglyceridemia: An Endocrine Society Clinical Practice Guideline (2012) · cites this paper as [42]
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- Authors
- Utermann, G.
- Affiliations
- Universität Innsbruck (AT)
- Corresponding author
- Utermann, Gerd
- Venue
- Science
- Published
- 1989-11-17
- Volume
- 246
- Issue
- 4932
- Pages
- 904-910
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W1970055375
- Cited by
- 1,257
- References
- 71
- Citations by year
- 2026: 15 · 2025: 20 · 2024: 14 · 2023: 20 · 2022: 13 · 2021: 16 · 2020: 15 · 2019: 13 · 2018: 12 · 2017: 13 · 2016: 23 · 2015: 19 · 2014: 8 · 2013: 18 · 2012: 16
- FWCI
- 14.82
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Science (publishedVersion)
- PubMed (publishedVersion)
- 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
- lipoprotein(a), apolipoprotein(a), low-density lipoprotein, plasminogen homology, genetic polymorphism, LDL receptor, premature coronary artery disease, stroke, Lp(a) metabolism
- MeSH terms
- Arteriosclerosis, Genes, Humans, Hypercholesterolemia, Genetic Linkage, Lipoproteins, Plasminogen, Lipoprotein(a)
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