Genetic Polymorphism of Human Tissue Phenol Sulfotransferases.
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- OZAWA Shogo
- Division of Pharmacology, National Institute of Health Sciences
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- SHIMIZU Makiko
- Division of Pharmacology, National Institute of Health Sciences Department of Clinical Pharmacology and Toxicology, Showa Pharmaceutical University
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- MATSUMOTO Yoshiaki
- Department of Clinical Pharmacology and Toxicology, Showa Pharmaceutical University
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- FUKUOKA Masamichi
- Department of Clinical Pharmacology and Toxicology, Showa Pharmaceutical University
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- KATO Takahiko
- Department of Public Health, Miyazaki Medical College
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- OHNO Yasuo
- Division of Pharmacology, National Institute of Health Sciences
Bibliographic Information
- Other Title
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- ヒト組織フェノール硫酸転移酵素の遺伝的多型性
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Abstract
Three related forms of phenol sulfotransferase, thermostable ST1A2 and ST1A3 and a thermolabile ST1A5 are known to exist in human livers. Thermostable forms, whose activities are polymorphically distributed in human tissues, have been shown to mediate the bioactivation of carcinogenic N-hydroxy aromatic amines as well as phenolic substrates. Variant forms of ST1A3 mRNAs (i.e. Arg213His and Met223Val) have been found in human livers. In a Japanese population, allele frequencies of 213Arg and 213His were 0.83 and 0.17, respectively. No remarkable difference in [35S]3'-phosphoadenosine 5'-phosphosulfate (PAPS)-dependent sulfation of p-nitrophenol was observed between recombinant 213Arg- and 213His-type ST1A3, although it was reported that 213His homozygosity was associated with both lower (less than one-sevenths) p-nitrophenol sulfation and thermolability in human platelets. The recombinant ST1A3 (213His) did exhibit unstability at 45° and 37°C as compared with ST1A3 (213Arg). Liver cytosols from 213His homozygotes did not always show low p-nitrophenol-sulfating activities. Different molecular mechanisms in sulfation polymorphism are suggested in livers and platelets of humans.
Journal
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- Drug Metabolism and Pharmacokinetics
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Drug Metabolism and Pharmacokinetics 15 (2), 171-176, 2000
The Japanese Society for the Study of Xenobiotics
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Details 詳細情報について
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- CRID
- 1390001204670260224
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- NII Article ID
- 10008416069
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- NII Book ID
- AN10144117
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- ISSN
- 09161139
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- Text Lang
- ja
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- Data Source
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- JaLC
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed