ArticleBioorganic chemistry2009
Covalent labeling of nuclear vitamin D receptor with affinity labeling reagents containing a cross-linking probe at three different positions of the parent ligand: structural and biochemical implications.
Article in Bioorganic chemistry, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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3 citing papers in PubMed, 7 citations in OpenAlex.
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- Structural and molecular analyses of functional epitopes and escape mutants in Japanese encephalitis virus envelope protein domain III.Immunologic research · 2020Article
- 1α,25-Dihydroxyvitamin D3-3β-bromoacetate, a potential cancer therapeutic agent: synthesis and molecular mechanism of action.Bioorganic & medicinal chemistry letters · 2011Article
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Authors and funding
6 authors at 1 institution in 1 country.
Funding
Abstract
Structure-functional characterization of vitamin D receptor (VDR) requires identification of structurally distinct areas of VDR-ligand-binding domain (VDR-LBD) important for biological properties of 1alpha,25-dihydroxyvitamin D(3) (1,25(OH)(2)D(3)). We hypothesized that covalent attachment of the ligand into VDR-LBD might alter 'surface structure' of that area influencing biological activity of the ligand. We compared anti-proliferative activity of three affinity alkylating derivatives of 1,25(OH)(2)D(3) containing an alkylating probe at 1,3 and 11 positions. These compounds possessed high-affinity binding for VDR; and affinity labeled VDR-LBD. But, only the analog with probe at 3-position significantly altered growth in keratinocytes, compared with 1,25(OH)(2)D(3). Molecular models of these analogs, docked inside VDR-LBD tentatively identified Ser237 (helix-3: 1,25(OH)(2)D(3)-1-BE), Cys288 (beta-hairpin region: 1,25(OH)(2)D(3)-3-BE,) and Tyr295 (helix-6: 1,25(OH)(2)D(3)-11-BE,) as amino acids that are potentially modified by these reagents. Therefore, we conclude that the beta-hairpin region (modified by 1,25(OH)(2)D(3)-3-BE) is most important for growth inhibition by 1,25(OH)(2)D(3), while helices 3 and 6 are less important for such activity.
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