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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
provided by the
Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
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Co-purification of Nuclear Receptor Ligand(s) and Interacting Proteins from Zebrafish EmbryosShih, Norrapat 17 March 2014 (has links)
The main focus of this project was to optimize a protocol for small molecule ligand co-purification from an in-vivo tissue source. For this purpose, I employed a transgenic zebrafish line called the pLT-gypsy, which expresses a fusion protein containing a tagged-NR LBD (Tiefenbach et al., 2010). The particular line I used to optimize the ligand identification protocol is the pLT-PPARγ zebrafish line, which expresses the tagged-PPARγ receptor's LBD (also called PPARγ-fusion protein). By using rosiglitazone (a known PPARγ ligand) as a positive control, I managed to optimize a protocol to purify the PPARγ-fusion protein and identify the co-purified ligand by mass spectrometry. This protocol can be used to identify the physiological/endogenous ligand for the PPARγ receptor as well as other orphan NRs. Compared to previous methods of ligand identification, this method allows for the identification of the ligand from the tissues where it is functional.
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Co-purification of Nuclear Receptor Ligand(s) and Interacting Proteins from Zebrafish EmbryosShih, Norrapat 17 March 2014 (has links)
The main focus of this project was to optimize a protocol for small molecule ligand co-purification from an in-vivo tissue source. For this purpose, I employed a transgenic zebrafish line called the pLT-gypsy, which expresses a fusion protein containing a tagged-NR LBD (Tiefenbach et al., 2010). The particular line I used to optimize the ligand identification protocol is the pLT-PPARγ zebrafish line, which expresses the tagged-PPARγ receptor's LBD (also called PPARγ-fusion protein). By using rosiglitazone (a known PPARγ ligand) as a positive control, I managed to optimize a protocol to purify the PPARγ-fusion protein and identify the co-purified ligand by mass spectrometry. This protocol can be used to identify the physiological/endogenous ligand for the PPARγ receptor as well as other orphan NRs. Compared to previous methods of ligand identification, this method allows for the identification of the ligand from the tissues where it is functional.
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