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*  Juvenile hormone
In the development stage, as long as there is enough JH, the ecdysone promotes larva-to-larva molts. With lower amounts of JH, ... There is a complex interaction between JH, the hormone ecdysone and vitellogenin. ... ecdysone promotes pupation. Complete absence of JH results in formation of the adult. In adult honey bees, JH and Vitellogenin ...
*  20-Hydroxyecdysone
Ecdysone and 20-hydroxyecdysone regulate larval molts, onset of puparium formation, and metamorphosis. Being that these ... Indeed, the main receptor of these hormone signals - the ecdysone receptor - is an intracellular protein. 20-Hydroxyecdysone ... Graham, Lloyd D (2002). "Ecdysone-controlled expression of transgenes". Expert Opinion on Biological Therapy. 2 (5): 525-35. ... In arthropods, 20-hydroxyecdysone acts through the ecdysone receptor. Although mammals lack this receptor, 20-hydroxyecdysone ...
*  Ecdysone
... receptor PTTH - Metamorphosis Initiator hormone Ecdybase, The Ecdysone Handbook - a free online ecdysteroids database ... Ecdysone and other ecdysteroids also appear in many plants mostly as a protection agent (toxins or antifeedants) against ... Ecdysone is a steroidal prohormone of the major insect molting hormone 20-hydroxyecdysone, which is secreted from the ... Insect molting hormones (ecdysone and its homologues) are generally called ecdysteroids. Ecdysteroids act as moulting hormones ...
*  Ecdysone receptor
... s have two main fields of application: Gene switches - ecdysone receptor-controlled transgenes for controlled ... and mediate the binding of the heterodimer to these ecdysone response elements (ECREs) in the promoters of ecdysone-responsive ... "The X-ray structure of a hemipteran ecdysone receptor ligand-binding domain: comparison with a lepidopteran ecdysone receptor ... The ecdysone receptor is a nuclear receptor found in arthropods, where it controls development and contributes to other ...
*  Ecdysone oxidase
In enzymology, an ecdysone oxidase (EC 1.1.3.16) is an enzyme that catalyzes the chemical reaction ecdysone + O2 ⇌ {\ ... This enzyme might also called beta-ecdysone oxidase. Koolman J, Karlson P (1975). "Ecdysone Oxidase, an enzyme from the blowfly ... The systematic name of this enzyme class is ecdysone:oxygen 3-oxidoreductase. ... displaystyle \rightleftharpoons } 3-dehydroecdysone + H2O2 Thus, the two substrates of this enzyme are ecdysone and O2, whereas ...
*  Ecdysone 20-monooxygenase
... (EC 1.14.99.22) is an enzyme that catalyzes the chemical reaction ecdysone + AH2 + O2 ⇌ {\ ... and ecdysone 20-hydroxylase. Johnson P, Rees HH (1977). "The mechanism of C-20 hydroxylation of alpha-ecdysone in the desert ... The systematic name of this enzyme class is Ecdysone,hydrogen-donor:oxygen oxidoreductase (20-hydroxylating). Other names in ... Gilbert LI; Bollenbacher, WE; Cooper, DY; Schleyer, H; Wielgus, JJ; Gilbert, LI (1979). "Ecdysone 20-monooxygenase: ...
*  Ecdysone O-acyltransferase
Other names in common use include acyl-CoA:ecdysone acyltransferase, and fatty acyl-CoA:ecdysone acyltransferase. Slinger AJ; ... ecdysone palmitate Thus, the two substrates of this enzyme are palmitoyl-CoA and ecdysone, whereas its two products are CoA and ... In enzymology, an ecdysone O-acyltransferase (EC 2.3.1.139) is an enzyme that catalyzes the chemical reaction palmitoyl-CoA + ... The systematic name of this enzyme class is palmitoyl-CoA:ecdysone palmitoyltransferase. ...
*  Testosterone
Its counterpart in insects is ecdysone. The presence of these ubiquitous steroids in a wide range of animals suggest that sex ...
*  Ecdysteroid
Ecdysone receptor de Loof A (2006). "Ecdysteroids: the overlooked sex steroids of insects? Males: the black box". Insect ... Ecdysteroids are insect moulting and sex hormones; examples of ecdysteroids include ecdysone, ecdysterone, turkesterone and 20- ...
*  Menispermaceae
Ecdysone steroids have also been found. Some species are cyanogenic. The Menispermaceae have been used in traditional ...
*  Butterfly
These are switched by the hormone ecdysone. The dry-season forms are usually more cryptic, perhaps offering better camouflage ...
*  Michael Ashburner
Hill, R. J.; Billas, I. M. L.; Bonneton, F. O.; Graham, L. D.; Lawrence, M. C. (2013). "Ecdysone Receptors: From the Ashburner ... He went on to demonstrate the effects of various stimuli, especially heat-shock and ecdysone, on puffing at specific loci, and ... he established the existence of a cascade of genetic controls in the post-larval development triggered by ecdysone. The ...
*  Bracken
"Insect Hormones: Alpha Ecdysone and 20-Hydroxyecdysone in Bracken Fern". Science Classic. 157 (3795): 1436-1438. 22 September ... Two major insect moulting hormones, alpha ecdysone and 20-hydroxyecdysone, are found in bracken. These cause uncontrollable, ...
*  Halloween genes
The shade gene (Cyp314a1) codes for a P450 enzyme responsible for adding a hydroxyl group to the 20C-position of ecdysone to ... Namiki T, Niwa R, Sakudoh T, Shirai K, Takeuchi H, Kataoka H (2005). "Cytochrome 450 CYP307A1/Spook: A regulator for ecdysone ... All of the genes code for cytochrome P450 enzymes in the ecdysteroidogenic pathway (biosynthesis of ecdysone from cholesterol ... The shadow gene (Cyp315a1) product produces ecdysone from 2-deoxyecdysone. ...
*  Ecdysis
In many species it is initiated by an increase in the hormone ecdysone. This hormone causes: apolysis - the separation of the ...
*  Prothoracic gland
They have an ectodermal origin and secrete ecdysteroids, such as ecdysone and 20-hydroxyecdysone. Gilbert, L. I.; Song, Q.; ...
*  Tebufenozide
It is an agonist of the ecdysone receptor that causes premature molting in larvae. It is primarily used against caterpillar ...
*  7-Dehydrocholesterol
In insects it is a precursor for the hormone ecdysone, required for reaching adulthood. It was discovered by Nobel-laureate ...
*  Juvenile-hormone esterase
Very detailed studies have been done on JH, JH acid, ecdysone, and JH titers have been done in precisely timed larvae of ... A very similar timing of peaks of JH esterase and ecdysone has been observed in Galleria mellonella. These data are consistent ... Correlations between Juvenile Hormone Esterase-Activity, Ecdysone Titer and Cellular Reprogramming in Galleria-Mellonella. J. ... with a classical model for lepidopterans where JH is high at each larval molt, but must rise together with ecdysone prior to ...
*  Tetranortriterpenoid
Azadirachtin mimics insect hormones called ecdysones that regulate pupation of insects; application of azadirachtin interrupts ...
*  David Hogness
He examined the role of the hormone ecdysone in the development of the fruit fly. In 1978, Hogness and his group identified the ...
*  Phytotoxin
Triterpenes mimic the insect molting hormone ecdysone, disrupting molting and development and is often lethal. They are usually ...
*  Synaptic pruning
Therefore, it is theorized that pruning in Drosophila is triggered by the activation of ecdysone receptors. Denervation studies ... Metamorphosis is triggered by ecdysone, and during this period, extensive pruning and reorganization of the neural network ...
*  Non-coding RNA
In Drosophila, hormones such as ecdysone and juvenile hormone can promote the expression of certain miRNAs. Furthermore, this ...
*  Insect growth regulator
IGRs can also inhibit the other hormone, ecdysone, large peaks of which trigger the insect to molt. If JH is present at the ... IGRs that inhibit ecdysone can cause pupal mortality by interrupting the transformation of larval tissues into adult tissues ...