Abstract: The present invention relates in part to isolated nucleic acid molecules (polynucleotides) which encode Rhipicephalus sanguineus glutamate gated chloride channels. The present invention also relates to recombinant vectors and recombinant hosts which contain a DNA fragment encoding R. sanguineus glutamate gated chloride channels, substantially purified forms of associated R. sanguineus glutamate gated chloride channels and recombinant membrane fractions comprising these proteins, associated mutant proteins, and methods associated with identifying compounds which modulate associated Rhipicephalus sanguineus glutamate gated chloride channels, which will be useful as insecticides.

Abstract: The present invention relates in part to isolated nucleic acid molecules (polynucleotides) which encode Rhipicephalus sanguineus glutamate gated chloride channels. The present invention also relates to recombinant vectors and recombinant hosts which contain a DNA fragment encoding R. sanguineus glutamate gated chloride channels, substantially purified forms of associated R. sanguineus glutamate gated chloride channels and recombinant membrane fractions comprising these proteins, associated mutant proteins, and methods associated with identifying compounds which modulate associated Rhipicephalus sanguineus glutamate gated chloride channels, which will be useful as insecticides.

Abstract: The present invention relates in part to isolated nucleic acid molecules (polynucleotides) which encode Rhipicephalus sanguineus glutamate gated chloride channels. The present invention also relates to recombinant vectors and recombinant hosts which contain a DNA fragment encoding R. sanguineus glutamate gated chloride channels, substantially purified forms of associated R. sanguineus glutamate gated chloride channels and recombinant membrane fractions comprising these proteins, associated mutant proteins, and methods associated with identifying compounds which modulate associated Rhipicephalus sanguineus glutamate gated chloride channels, which will be useful as insecticides.

Abstract: The present invention relates in part to isolated nucleic acid molecules (polynucleotides) which encode Rhipicephalus sanguineus glutamate gated chloride channels. The present invention also relates to recombinant vectors and recombinant hosts which contain a DNA fragment encoding R. sanguineus glutamate gated chloride channels, substantially purified forms of associated R. sanguineus glutamate gated chloride channels and recombinant membrane fractions comprising these proteins, associated mutant proteins, and methods associated with identifying compounds which modulate associated Rhipicephalus sanguineus glutamate gated chloride channels, which will be useful as insecticides.

Abstract: The present invention relates in part to isolated nucleic acid molecules (polynucleotides) which encode Rhipicephalus sanguineus glutamate gated chloride channels. The present invention also relates to recombinant vectors and recombinant hosts which contain a DNA fragment encoding R. sanguineus glutamate gated chloride channels, substantially purified forms of associated R. sanguineus glutamate gated chloride channels and recombinant membrane fractions comprising these proteins, associated mutant proteins, and methods associated with identifying compounds which modulate associated Rhipicephalus sanguineus glutamate gated chloride channels, which will be useful as insecticides.

Abstract: The present invention relates in part to isolated nucleic acid molecules (polynucleotides) which encode Schistocerca americana (grasshopper) glutamate-gated chloride channels. The present invention also relates to recombinant vectors and recombinant hosts which contain a DNA fragment encoding S. americana glutamate-gated chloride channels, substantially purified forms of associated S. americana glutamate-gated chloride channels and recombinant membrane fractions comprising these proteins, associated mutant proteins, and methods associated with identifying compounds which modulate associated Schistocerca americana glutamate-gated chloride channels, which will be useful as insecticides.

Abstract: DNAs encoding voltage-activated cation channels have been cloned and characterized. The cDNA's have been expressed in recombinant host cells which produce active recombinant protein. The recombinant protein is also purified from the recombinant host cells. In addition, the recombinant host cells are utilized to establish a method for identifying modulators of the channel activity, and channel modulators are identified. Channel modulators are useful as insecticides and arachnicidic agents.

Abstract: The present invention relates in part to isolated nucleic acid molecules (polynucleotides) which encode Rhipicephalus sanguineus glutamate gated chloride channels. The present invention also relates to recombinant vectors and recombinant hosts which contain a DNA fragment encoding R. sanguineus glutamate gated chloride channels, substantially purified forms of associated R. sanguineus glutamate gated chloride channels and recombinant membrane fractions comprising these proteins, associated mutant proteins, and methods associated with identifying compounds which modulate associated Rhipicephalus sanguineus glutamate gated chloride channels, which will be useful as insecticides.

Abstract: To date, L-glutamate-gated chloride (GluCl) channels have been observed only in invertebrate organisms. Modulators of this channel (either agonists or antagoinists) will interfere with neurotransmission. For example, agents such as avermectins activate the GluCl, causing paralysis due to blocking of neurotranmitter release, resulting in death of the organism. Because GluCl channels are invertebreate specific, they are excellent targets for the discovery of novel insecticides, anthelminths and parasiticides that will display a marked safety profile because of the lack of mechanism based toxicity in vertebrate organisms. The present specification discloses isolation of a cDNA clone from the cat flea Ctenocephalides felis (CfGluCl-1) that encodes a L-glutamate-gated chloride channel. Heterologous expression of CfGluCl-1 cRNA in Xenopus oocytes results in robust expression of a L-glutamate-gated chloride current and the channel is activated and potentiated by avermectins.

Abstract: DNAs encoding voltage-activated cation channels have been cloned and characterized. The cDNA's have been expressed in recombinant host cells which produce active recombinant protein. The recombinant protein is also purified from the recombinant host cells.

Abstract: DNAs encoding voltage-activated cation channels have been cloned and characterized. The cDNA's have been expressed in recombinant host cells which produce active recombinant protein. The recombinant protein is also purified from the recombinant host cells.

Abstract: DNAs encoding voltage-activated cation channels have been cloned and characterized. The cDNA's have been expressed in recombinant host cells which produce active recombinant protein. The recombinant protein is also purified from the recombinant host cells. In addition, the recombinant host cells are utilized to establish a method for identifying modulators of the channel activity, and channel modulators are identified. Channel modulators are useful as insecticides and arachnicidic agents.