Journal
ATHEROSCLEROSIS
Volume 164, Issue 2, Pages 245-250Publisher
ELSEVIER IRELAND LTD
DOI: 10.1016/S0021-9150(02)00106-5
Keywords
ABCA1; FHA; low HDL cholesterol; coronary artery disease
Funding
- NHLBI NIH HHS [HL-61369] Funding Source: Medline
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The ATP-binding cassette transporter, ABCA1, is a member of the ABC superfamily of proteins involved in the active transport of substrates across cellular membranes. Recent studies have implicated mutations in ABCA1 as the cause of Tangier disease (TD) and familial hypoalphalipoproteinemia, (FHA). To evaluate the molecular basis of low high density lipoprotein (HDL) in a family with premature coronary artery disease, single strand conformational polymorphism analysis was performed for all coding regions and splice site junctions of ABCA1 with the genomic DNA of the proband. The proband and affected individuals were heterozygotes for C254T with proline converted to leucine (P85L). This mutation was not identified in over 400 chromosomes of healthy subjects. In the FHA kindred, family members heterozygous for the ABCA1 variant also exhibited corresponding low levels of HDL cholesterol. These data confirm recent data that a single defective allele in ABCA1 may be associated with reduced HDL cholesterol and FHA. (C) 2002 Elsevier Science Ireland Ltd. All rights reserved.
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