Tag: Juvenile Hormone
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Buggy Love Potion: The Science of Insect Sex Hormones
Listen up, you sexy six-legged sirens and alluring arthropods! 🐞💋 Get ready to have your mind blown and your exoskeleton rocked. Insect sex hormones: They’re real, they’re spectacular, and they’re changing the game of love in the miniature world! From ecdysone’s double life to gonadotropins’ matchmaking skills, these hormones are the unsung heroes of insect…
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Juvenile hormone epoxide hydrolase (JHEH) is an enzyme that inactivates insect juvenile hormones
Juvenile hormone epoxide hydrolase (JHEH) is an enzyme that inactivates insect juvenile hormones. This inactivation is accomplished through hydrolysis of the epoxide functional group contained within these hormones into diols. JHEH is one of two enzymes involved in the termination of signaling properties of the various juvenile hormones. The other is juvenile-hormone esterase, or JHE. The first observation of activity from JHEH was in Rhodnius…
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The enzyme juvenile hormone esterase catalyzes the hydrolysis of juvenile hormone
The enzyme juvenile hormone esterase (EC 3.1.1.59, systematic name methyl-(2E,6E,10R)-10,11-epoxy-3,7,11-trimethyltrideca-2,6-dienoate acylhydrolase, JH esterase) catalyzes the hydrolysis of juvenile hormone: Nomenclature and function This enzyme belongs to the family of hydrolases, specifically those acting on carboxylic ester bonds. The systematic name of this enzyme class is methyl-(2E,6E)-(10R,11S)-10,11-epoxy-3,7,11-trimethyltrideca-2,6-dienoate acylhydrolase. Other names in common use include JH esterase, juvenile hormone esterase, and juvenile hormone carboxyesterase. Juvenile hormone (JH) controls insect metamorphosis. High JH titers…
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The conjugate (10S,11S) JH diol phosphate is the product of a two-step enzymatic process: conversion of JH to JH diol and then addition of a phosphate group to C10
The conjugate (10S,11S) JH diol phosphate is the product of a two-step enzymatic process: conversion of JH to JH diol and then addition of a phosphate group to C10. The enzyme responsible for the phosphorylation of JH diol is JH diol kinase (JHDK), which was first characterized from the Malpighian tubules of early fifth instars of M. sexta. The Malpighian tubule system is a type of excretory and osmoregulatory system found in…
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