Difference between revisions of "Part:BBa K364326:Experience"
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+ | ===Ligand=== | ||
+ | |||
+ | Ecdysteroids (EcR) | ||
+ | |||
+ | Ecdysteroids are insect moulting and sex hormones which include ecdysone and | ||
+ | its homologues such as 20-hydroxyecdysone. Ecdysteroids also occur in other | ||
+ | invertebrates where they can play a different role. They also appear in many plants | ||
+ | mostly as a protection agents (toxins or antifeedants) against herbivore insects. | ||
+ | These phytoecdysteroids have medicinal value and are part of herbal adaptogenic | ||
+ | remedies like cordyceps. | ||
+ | |||
+ | ===Physiological functions of EcR=== | ||
+ | Pulses of 20-hydroxyecdysone occur during insect development, whereupon this hormone binds to the ecdysone receptor, a ligand-activated transcription factor found in the nuclei of insect cells. This in turn leads to the activation of many other genes, as evidenced by chromosomal puffing at over a hundred sites. Ultimately the activation cascade causes physiological changes that result in ecdysis (moulting). | ||
+ | |||
+ | ===Potential applications of GAL4-EcR LBD=== | ||
+ | By the addition of lipid ligands(ecdysteroids), the created system activates the expression of any kind of genes fused to UAS(upstream activation seqence)previously. Also can be used as a lipid sensor by activating reporter genes (e.g. Luciferase). | ||
===Applications of BBa_K364326=== | ===Applications of BBa_K364326=== |
Revision as of 01:12, 26 October 2010
Ligand
Ecdysteroids (EcR)
Ecdysteroids are insect moulting and sex hormones which include ecdysone and its homologues such as 20-hydroxyecdysone. Ecdysteroids also occur in other invertebrates where they can play a different role. They also appear in many plants mostly as a protection agents (toxins or antifeedants) against herbivore insects. These phytoecdysteroids have medicinal value and are part of herbal adaptogenic remedies like cordyceps.
Physiological functions of EcR
Pulses of 20-hydroxyecdysone occur during insect development, whereupon this hormone binds to the ecdysone receptor, a ligand-activated transcription factor found in the nuclei of insect cells. This in turn leads to the activation of many other genes, as evidenced by chromosomal puffing at over a hundred sites. Ultimately the activation cascade causes physiological changes that result in ecdysis (moulting).
Potential applications of GAL4-EcR LBD
By the addition of lipid ligands(ecdysteroids), the created system activates the expression of any kind of genes fused to UAS(upstream activation seqence)previously. Also can be used as a lipid sensor by activating reporter genes (e.g. Luciferase).
Applications of BBa_K364326
User Reviews
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