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Theses/Dissertations

2011

Binding Assay, Transactivation, Coimmunoprecipitation

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Full-Text Articles in Molecular Biology

Structural And Functional Alteration Of Full Length Pparα And Lxrα By Fatty Acids And Their Thioesters, Madhumitha Balanarasimha Jan 2011

Structural And Functional Alteration Of Full Length Pparα And Lxrα By Fatty Acids And Their Thioesters, Madhumitha Balanarasimha

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Peroxisome proliferator-activated receptors (PPAR) and liver X receptors (LXR) are known to play important roles in fatty acid metabolism, interact with each other, and function as heterodimeric partners. Although previous studies indicate that PPARα is activated by long chain fatty acyl-CoA thioesters (LCFA-CoA) and polyunsaturated fatty acids, little is known about the effects of these ligands on the function or interaction of PPARα and LXRα. In this study, hPPARα and hLXRα were shown to directly interact by circular dichroism, fluorescent binding assays, and co-immunoprecipitation. Further experiments suggested that although fatty acids resulted in small structural changes, they significantly altered binding ...