alexa Genetic variants of human UGT1A3: functional characterization and frequency distribution in a Chinese Han population.
Pharmaceutical Sciences

Pharmaceutical Sciences

Journal of Applied Pharmacy

Author(s): Chen Y, Chen S, Li X, Wang X, Zeng S

Abstract Share this page

Abstract UDP-glucuronosyltransferase 1A3 (UGT1A3) contributes to glucuronidation of many important endogenous compounds and xenobiotics, including some flavonoids. Recently, a total of six single nucleotide polymorphisms (SNPs) have been identified in the human UGT1A3 gene. Among them, four SNPs (A17G, Q6R; T31C, W11R; C133T, R45W; and T140C, V47A) cause amino acid substitutions. Variants caused by these SNPs showed an activity change in estrone metabolism, whereas their activities toward other substrates were not examined. In the present study, three common flavonoids, quercetin, luteolin, and kaempferol, were used as substrates for glucuronidation by wild-type and variant UGT1A3s. Our results demonstrated that the activities of three variants, UGT1A3.2, UGT1A3.3, and UGT1A3.5, were remarkably lower than that of UGT1A3.1. In contrast, UGT1A3.4 exhibited an increase in glucuronidation efficiency of approximately 4 times and a clear preference to quercetin 7- and 3-hydroxyl groups. The frequency distributions of UGT1A3 alleles and SNPs in UGT1A3 in a Chinese Han population were statistically different from the reported value in German-Caucasians (p < 0.05). UGT1A3 variants have an altered glucuronidation activity toward quercetin, luteolin, and kaempferol and may alter human susceptibility to flavonoid exposure. This article was published in Drug Metab Dispos and referenced in Journal of Applied Pharmacy

Relevant Expert PPTs

Relevant Speaker PPTs

Recommended Conferences

  • 8th Annual Pharmaceutical Analysis Congress
    Sep 25-27, 2017 Vienna, Austria
  • 12th World Pharma Congress
    October 16-18, 2017 Budapest, Hungary

Relevant Topics

Peer Reviewed Journals
Make the best use of Scientific Research and information from our 700 + peer reviewed, Open Access Journals
International Conferences 2017-18
Meet Inspiring Speakers and Experts at our 3000+ Global Annual Meetings

Contact Us

Agri, Food, Aqua and Veterinary Science Journals

Dr. Krish

1-702-714-7001 Extn: 9040

Clinical and Biochemistry Journals

Datta A

1-702-714-7001Extn: 9037

Business & Management Journals


1-702-714-7001Extn: 9042

Chemical Engineering and Chemistry Journals

Gabriel Shaw

1-702-714-7001 Extn: 9040

Earth & Environmental Sciences

Katie Wilson

1-702-714-7001Extn: 9042

Engineering Journals

James Franklin

1-702-714-7001Extn: 9042

General Science and Health care Journals

Andrea Jason

1-702-714-7001Extn: 9043

Genetics and Molecular Biology Journals

Anna Melissa

1-702-714-7001 Extn: 9006

Immunology & Microbiology Journals

David Gorantl

1-702-714-7001Extn: 9014

Informatics Journals

Stephanie Skinner

1-702-714-7001Extn: 9039

Material Sciences Journals

Rachle Green

1-702-714-7001Extn: 9039

Mathematics and Physics Journals

Jim Willison

1-702-714-7001 Extn: 9042

Medical Journals

Nimmi Anna

1-702-714-7001 Extn: 9038

Neuroscience & Psychology Journals

Nathan T

1-702-714-7001Extn: 9041

Pharmaceutical Sciences Journals

John Behannon

1-702-714-7001Extn: 9007

Social & Political Science Journals

Steve Harry

1-702-714-7001 Extn: 9042

© 2008-2017 OMICS International - Open Access Publisher. Best viewed in Mozilla Firefox | Google Chrome | Above IE 7.0 version