How many genes encode cholinesterase in arthropods?

Autor: Francois Villatte, Till T. Bachmann
Rok vydání: 2002
Předmět:
Zdroj: Pesticide Biochemistry and Physiology. 73:122-129
ISSN: 0048-3575
DOI: 10.1016/s0048-3575(02)00002-0
Popis: Carbamate and organophosphate pesticides act by inhibiting the key enzyme acetylcholinesterase in arthropods. Conversely to the case in vertebrates, in which two genes encode two different cholinesterases (ChE) a single gene was found in the fruit fly Drosophila melanogaster. In this species, several mutations decreasing the enzyme sensitivity to insecticides and thus responsible for resistance have been identified. After the sequencing of ChE-like genes in other species, repeated attempts to identify resistance mutations failed. These intriguing results raise the question of the existence of several ChE-encoding genes in a Arthropoda.
Databáze: OpenAIRE