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Peptides. 2006 Jun;27(6):1226-34. Epub 2005 Dec 28.

Molecular characterization and functional distribution of N-ethylmaleimide-sensitive factor in Helicoverpa armigera.

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  • 1Department of Molecular and Cell Biology, School of Life Sciences, University of Science and Technology of China, Hefei 230027, China.

Abstract

N-ethylmaleimide-sensitive fusion protein (NSF) is an essential component for the neurotransmitter or neurohormone release apparatus present in all eukaryotic cells. Here, a new NSF orthologue was characterized from the cotton bollworm, Helicoverpa armigera (Har). Northern blot exhibited a high expression in larval brain. Southern analysis indicated that a single copy of the gene is present in a haploid genome. Using antibodies labeled with fluoresceins, we directly proved that NSF is co-localized with two crucial neurohormones, prothoracicotropic hormone and diapause hormone, both of which regulate insect development. These findings suggest that Har-NSF may be involved in regulating insect neurohormone release.

PMID:
16386334
[PubMed - indexed for MEDLINE]
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