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Title: Characterization of WY 14,643 and its Complex with Aldose Reductase

Journal Article · · Scientific Reports
DOI:https://doi.org/10.1038/srep34394· OSTI ID:1378554
 [1];  [2];  [3];  [4];  [1];  [3]
  1. UCLA-DOE, Los Angeles, CA (United States)
  2. Univ. of Manchester (United Kingdom)
  3. Youngstown State Univ., OH (United States)
  4. Univ. of Missouri, St. Louis, MO (United States)

The peroxisome proliferator, WY 14,643 exhibits a pure non-competitive inhibition pattern in the aldehyde reduction and in alcohol oxidation activities of human Aldose reductase (hAR). Fluorescence emission measurements of the equilibrium dissociation constants, Kd, of oxidized (hAR•NADP+) and reduced (hAR•NADPH) holoenzyme complexes display a 2-fold difference between them. Kd values for the dissociation of WY 14,643 from the oxidized (hAR•NADP+•WY 14,643) and reduced (hAR•NADPH•WY 14,643) ternary complexes are comparable to each other. The ternary complex structure of hAR•NADP+•WY 14,643 reveals the first structural evidence of a fibrate class drug binding to hAR. These observations demonstrate how fibrate molecules such as WY 14,643, besides being valued as agonists for PPAR, also inhibit hAR.

Research Organization:
Stanford Synchrotron Radiation Lab., (SSRL), CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Biological and Environmental Research (BER)
OSTI ID:
1378554
Journal Information:
Scientific Reports, Vol. 6, Issue 1; ISSN 2045-2322
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 1 work
Citation information provided by
Web of Science

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