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・ Ecdemus carmania
・ Ecdemus hypoleuca
・ Ecdemus obscuratus
・ Ecdicius
・ ECDL
・ Ecdyceras
・ Ecdyonurus
・ Ecdysia
・ Ecdysis
・ Ecdysis (album)
・ Ecdysis (disambiguation)
・ Ecdysone
・ Ecdysone 20-monooxygenase
・ Ecdysone O-acyltransferase
・ Ecdysone oxidase
Ecdysone receptor
・ Ecdysozoa
・ Ecdysteroid
・ Ecdysteroid-phosphate phosphatase
・ Ecdytolopha
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Ecdysone receptor : ウィキペディア英語版
Ecdysone receptor

The ecdysone receptor is a nuclear receptor found in arthropods, where it controls development and contributes to other processes such as reproduction. The receptor is a non-covalent heterodimer of two proteins, the EcR protein and ultraspiracle protein (USP). It binds to and is activated by ecdysteroids. Insect ecdysone receptors are currently better characterized than those from other arthropods, and mimics of ecdysteroids are used commercially as caterpillar-selective insecticides.
== Function ==

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 puffing of polytene chromosomes at over a hundred sites. Ultimately the activation cascade causes physiological changes that result in ecdysis (moulting).

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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