Send to

Choose Destination
Nature. 1994 Oct 20;371(6499):707-11.

Cloning of an avermectin-sensitive glutamate-gated chloride channel from Caenorhabditis elegans.

Author information

Department of Cellular Biochemistry and Physiology, Merck Research Laboratories, Rahway, New Jersey 07065-0900.


The avermectins are a family of macrocyclic lactones used in the control of nematode and arthropod parasites. Ivermectin (22,23-dihydroavermectin B1a) is widely used as an anthelmintic in veterinary medicine and is used to treat onchocerciasis or river blindness in humans. Abamectin (avermectin B1a) is a miticide and insecticide used in crop protection. Avermectins interact with vertebrate and invertebrate GABA receptors and invertebrate glutamate-gated chloride channels. The soil nematode Caenorhabditis elegans has served as a useful model to study the mechanism of action of avermectins. A C. elegans messenger RNA expressed in Xenopus oocytes encodes an avermectin-sensitive glutamate-gated chloride channel. To elucidate the structure and properties of this channel, we used Xenopus oocytes for expression cloning of two functional complementary DNAs encoding an avermectin-sensitive glutamate-gated chloride channel. We find that the electrophysiological and structural properties of these proteins indicate that they are new members of the ligand-gated ion channel superfamily.

[Indexed for MEDLINE]

Supplemental Content

Full text links

Icon for Nature Publishing Group
Loading ...
Support Center