Evidence map›Paper›PMID 19858781›Full record

ArticlePharmacogenetics and genomics2009

Human UDP-glucuronosyltransferase UGT2A2: cDNA construction, expression, and functional characterization in comparison with UGT2A1 and UGT2A3.

Nina Sneitz, Michael H Court, Xiuling Zhang, Kaisa Laajanen, Karen K Yee, Pamela Dalton, Xinxin Ding, Moshe Finel

Open access · greenAbstract readComparative Study
In one paragraph

Article in Pharmacogenetics and genomics, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
9.2field-weighted citation impact, top 2% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

24 citing papers in PubMed, 66 citations in OpenAlex.

  1. Article
  2. Review
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  5. Review
  6. Article
  7. Article
  8. The Human UGT2B7 Nanodisc.Drug metabolism and disposition: the biological fate of chemicals · 2020
    Article
  9. Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Review
  15. Xenobiotic Metabolism in Mice Lacking the UDP-Glucuronosyltransferase 2 Family.Drug metabolism and disposition: the biological fate of chemicals · 2015
    Article
  16. Review
  17. Article
  18. Article
  19. Article
  20. Importance of UDP-glucuronosyltransferases 2A2 and 2A3 in tobacco carcinogen metabolism.Drug metabolism and disposition: the biological fate of chemicals · 2013
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 5 institutions in 3 countries.

Nina SneitzCentre for Drug Research, Faculty of Pharmacy, University of Helsinki, Finland.
Michael H Court
Xiuling Zhang
Kaisa Laajanen
Karen K Yee
Pamela Dalton
Xinxin Ding
Moshe Finel
Monell Chemical Senses Center · USNew York State Department of Health · USUniversity of Helsinki · FICentre for Drug Research and Development · CATufts University · US

Funding

LABORATORY OF DEVELOPMENTAL BIOLOGYR24HD000836 · NICHD · UNIVERSITY OF WASHINGTON · PI Ian Amos Glass · 1995 to 2026
$16.9M
Sensory/Medical CoreP50DC006760 · NIDCD · MONELL CHEMICAL SENSES CENTER · PI BEAUCHAMP, GARY K · 2004 to 2009
$8.6M
OLFACTORY TOXICITY OF ENVIRONMENTAL AGENTSR01ES007462 · NIEHS · WADSWORTH CENTER · PI DING, XINXIN · 1994 to 2010
$3.3M
MOLECULAR DETERMINANTS OF UGT FUNCTIONR01GM061834 · NIGMS · TUFTS UNIVERSITY BOSTON · PI COURT, MICHAEL H · 2000 to 2010
$2.4M
STUDY OF EMBRYOLOGYR01HD000836 · NICHD · UNIVERSITY OF WASHINGTON · PI FANTEL, ALAN G · 1985 to 1994
–
NICHD NIH HHS HD00836NICHD NIH HHS P50 HD006760NICHD NIH HHS R24 HD000836NIDCD NIH HHS P50 DC006760NIEHS NIH HHS ES07462NIEHS NIH HHS R01 ES007462NIGMS NIH HHS GM61834NIGMS NIH HHS R01 GM061834
6 · The paper itself

Abstract

objectivesCharacterize the expression and glucuronidation activities of the human uridine 5'-diphospho (UDP)-glucuronosyltransferase (UGT) 2A2.

methodUGT2A1 was cloned from nasal mucosa mRNA. Synthetic cDNA for UGT2A2 was constructed assuming exon sharing between UGT2A1 and UGT2A2 (Mackenzie et al., Pharmacogenetics and Genomics 2005, 15:677-685). Exon 1 of UGT2A2 was amplified from genomic DNA and combined with exons 2-6 of UGT2A1. UGT2A3 was cloned from liver mRNA. Quantitative reverse-transcribed-PCR (RT-PCR) was used to evaluate the expression of all the three UGTs of subfamily 2A in different tissues. Recombinant UGT2A1, UGT2A2 and UGT2A3 were expressed in baculovirus-infected insect cells and analyzed for glucuronidation activity towards different substrates.

resultsDNA sequencing of RT-PCR products from human nasal mucosa mRNA, confirmed exon sharing between UGT2A1 and UGT2A2. In addition, it indicated that the N-terminal signal peptide sequence of UGT2A2 is the longest among the human UGTs. Quantitative RT-PCR revealed that both UGT2A1 and UGT2A2 are mainly expressed in the nasal mucosa, and that their expression level in fetal samples was much higher than in adults. Activity assays with recombinant UGTs 2A1-2A3 showed broad substrate selectivity for UGT2A1 and UGT2A2. Although glucuronidation rates and substrate affinities were mostly higher in UGT2A1, the Km values for UDP-glucuronic acid were similar in both UGTs. In addition, there were regioselectivity differences between the two UGTs and, with a few substrates, particularly ethinylestradiol, the activity of UGT2A2 was higher.

conclusionUGT2A2 is mainly expressed in the nasal mucosa and it has glucuronidation activity towards several different endobiotic and xenobiotic substrates.

Indexed as

AdultAmino Acid SequenceCloning, MolecularFemaleFetusGene Expression Regulation, EnzymologicGlucuronosyltransferaseHumansIsoenzymesMaleMiddle AgedMolecular Sequence DataNasal MucosaRecombinant ProteinsSequence AlignmentGlucuronosyltransferaseIsoenzymesRecombinant Proteins

Identifiers

PMID19858781
PMCPMC2928392
OpenAlexW2075089790

What OpenQuestion holds

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.