Biomaterial Database

Pathway and regulation of JHIII-Bisepoxide biosynthesis in adult Drosophila melanogaster corpus allatum. 1995

P Moshitzky, and S W Applebaum

Department of Entomology, Faculty of Agriculture, Hebrew University, Rehovot, Israel.

Adult female Drosophila melanogaster corpus allatum (CA) synthesize JHB3 from endogenous and exogenous precursors in vitro. We present evidence supporting the thesis that biosynthesis proceeds from precursor FA via initial epoxidation and terminal methylation on the basis of the following: (1) Methyl farnesoate is not epoxidized to JHIII or JHB3; (2) Authentic JHIII is not epoxidized to JHB3; and (3) FABE is markedly metabolized to JHB3. Cerebral allatostatic factors act at some stage subsequent to FA and this precursor is not normally rate-limiting. Additionally, neural inhibition from the brain acts at some biosynthetic step prior to FA.

UI	MeSH Term	Description	Entries
D007605	Juvenile Hormones	Compounds, either natural or synthetic, which block development of the growing insect.	Insect Growth Regulator,Insect Growth Regulators,Juvenile Hormone,Growth Regulators, Insect,Regulators, Insect Growth,Growth Regulator, Insect,Hormone, Juvenile,Hormones, Juvenile,Regulator, Insect Growth
D008297	Male		Males
D008745	Methylation	Addition of methyl groups. In histo-chemistry methylation is used to esterify carboxyl groups and remove sulfate groups by treating tissue sections with hot methanol in the presence of hydrochloric acid. (From Stedman, 25th ed)	Methylations
D003335	Corpora Allata	Paired or fused ganglion-like bodies in the head of insects. The bodies secrete hormones important in the regulation of metamorphosis and the development of some adult tissues.	Corpus Allatum,Corpus Cardiacum,Allata, Corpora,Allatum, Corpus
D004331	Drosophila melanogaster	A species of fruit fly frequently used in genetics because of the large size of its chromosomes.	D. melanogaster,Drosophila melanogasters,melanogaster, Drosophila
D004852	Epoxy Compounds	Organic compounds that include a cyclic ether with three ring atoms in their structure. They are commonly used as precursors for POLYMERS such as EPOXY RESINS.	Epoxide,Epoxides,Epoxy Compound,Oxiranes,Compound, Epoxy,Compounds, Epoxy
D005229	Fatty Acids, Monounsaturated	Fatty acids which are unsaturated in only one position.	Monounsaturated Fatty Acid,Acid, Monounsaturated Fatty,Acids, Monounsaturated Fatty,Fatty Acid, Monounsaturated,Monounsaturated Fatty Acids
D005231	Fatty Acids, Unsaturated	FATTY ACIDS in which the carbon chain contains one or more double or triple carbon-carbon bonds.	Fatty Acids, Polyunsaturated,Polyunsaturated Fatty Acid,Unsaturated Fatty Acid,Polyunsaturated Fatty Acids,Acid, Polyunsaturated Fatty,Acid, Unsaturated Fatty,Acids, Polyunsaturated Fatty,Acids, Unsaturated Fatty,Fatty Acid, Polyunsaturated,Fatty Acid, Unsaturated,Unsaturated Fatty Acids
D005260	Female		Females
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia