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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
1995-2-9
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pubmed:abstractText |
Lipoprotein(a) [Lp(a)], a variant of low-density lipoprotein, is heterogeneous in density because of variability in the content and composition of its core lipids and size polymorphism of its specific glycoprotein component, apolipoprotein(a) [apo(a)]. In some individuals, density polymorphism may also derive from the fact that Lp(a) contains 2 mol of apo(a) per mole of apoB100, contrary to the more common 1:1 molar stoichiometry. Moreover, the size of apo(a) is polymorphic because of variations in the number of kringle 4 type 2 repeats. Another type of apo(a) polymorphism is related to sequence mutations at the kringle level. Two mutations can occur in kringle 4 type 10: one, Trp72-->Arg, is affiliated with an Lp(a) that is lysine-binding defective; the other, Met66-->Thr, with a normal lysine-binding function. Thus, Lp(a) is structurally and functionally polymorphic, a notion that must be considered in assessing the cardiovascular pathogenicity of this lipoprotein variant and in immunoquantification assays.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Jan
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pubmed:issn |
0009-9147
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
41
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
170-2
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:7813075-Apolipoprotein B-100,
pubmed-meshheading:7813075-Apolipoproteins A,
pubmed-meshheading:7813075-Apolipoproteins B,
pubmed-meshheading:7813075-Humans,
pubmed-meshheading:7813075-Lipoprotein(a),
pubmed-meshheading:7813075-Mutation,
pubmed-meshheading:7813075-Polymorphism, Genetic,
pubmed-meshheading:7813075-Repetitive Sequences, Nucleic Acid
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pubmed:year |
1995
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pubmed:articleTitle |
Structural and functional polymorphism of lipoprotein(a): biological and clinical implications.
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pubmed:affiliation |
Department of Medicine, University of Chicago, IL 60637.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Review
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