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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Maeda, T. Yamakawa, K. Yanagi, H. Matsunaga, T. Hiasa, Y. Hattori, N. Yamanouchi, Y. Tanaka, I. Obara, T. Hamaguchi, H. |
| Description | Author Affiliation: Matsunaga T ( Department of Human Genetics, University of Tsukuba, Japan.); |
| Abstract | The molecular genetic defect of a female patient with apolipoprotein A-I (apoA-I) deficiency and premature atherosclerosis was examined. Her parents were first cousins. Her plasma density fraction from 1.063 to 1.21 g/ml contained no apoA-I on SDS/PAGE and no measurable high density lipoprotein cholesterol. Southern blot hybridization showed no gross abnormality to be present in the patient's apoA-I gene and homozygosity for a haplotype of restriction fragment length polymorphisms in the apoA-I gene region. Sequencing after amplification by PCR revealed a codon 84 nonsense mutation (CAG----TAG, Gln----stop) of exon 4 and a codon 67 missense mutation (GCC----ACC, Ala----Thr) of exon 3 in the patient's apoA-I gene. The data from dot-blot hybridization with allele-specific oligonucleotide probes indicated that she was homozygous for the apoA-I gene with regard to the two mutations. The codon 37 missense mutation was also detected in the apoA-I gene of 6 out of 60 controls, who all had normal levels of apoA-I and high density lipoprotein cholesterol, suggesting that the missense mutation is polymorphic and not associated with apoA-I deficiency. These findings indicate that homozygosity for the apoA-I gene with codon 84 nonsense mutation causes the deficiency of apoA-I and of high density lipoprotein cholesterol in the patient. |
| ISSN | 00278424 |
| e-ISSN | 10916490 |
| Journal | Proceedings of the National Academy of Sciences of the United States of America |
| Issue Number | 7 |
| Volume Number | 88 |
| Language | English |
| Publisher | National Academy of Sciences |
| Publisher Date | 1991-05-01 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Apolipoproteins A Genetics Arteriosclerosis Genes Lipoproteins, HDL Mutation Amino Acid Sequence Apolipoprotein A-I Blood Deficiency Blotting, Southern Cloning, Molecular Codon Coronary Angiography DNA Isolation & Purification Molecular Sequence Data Nucleic Acid Hybridization Oligonucleotide Probes Pedigree Polymerase Chain Reaction Reference Values Restriction Mapping Sequence Homology, Nucleic Acid Comparative Study Research Support, Non-U.S. Gov't Multidisciplinary |
| Content Type | Text |
| Resource Type | Article |
| Subject | Multidisciplinary |
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