Calcium permeable insect sodium channels and use thereof

Chemistry: molecular biology and microbiology – Micro-organism – tissue cell culture or enzyme using process... – Recombinant dna technique included in method of making a...

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

435325, 435348, 4353201, 536 235, C12P 2102, C12N 510, C12N 1585, C07H 2104

Patent

active

058587136

ABSTRACT:
The present invention is directed to isolated nucleic acid molecules encoding a voltage-sensitive sodium channel (VSSC) of an insect having a mutation therein which renders the sodium channel permeable to calcium, as well as to the isolated calcium permeable voltage-sensitive sodium channels encoded thereby. Nucleic acid molecules encoding calcium permeable VSSCs of Musca domestica, Drosophila melanogaster, and Heliothis virescens are specifically provided. These calcium permeable channels can be used to monitor the function of the channel by monitoring calcium transport through the sodium channel, and for screening chemical agents for the ability of the chemical agent to modify sodium channel function, again by monitoring calcium transport through the channel.

REFERENCES:
patent: 5132296 (1992-07-01), Cherksey
patent: 5204239 (1993-04-01), Gitler et al.
patent: 5208145 (1993-05-01), Rogers
patent: 5368712 (1994-11-01), Tomich et al.
Jacques et al., "Molecular Properties of the Action Potential Na+ Ionophore in Neuroblastoma Cells," The Journal of Biological Chemistry, 253:7383-7392 (1978).
Sawicki, "Unusual Response of DDT-Resistant Houseflies to Carbinol Analogues of DDT," Nature, 275:443-444 (1978).
Jackson et al., "Two Types of Mutants Affecting Voltage-Sensitive Sodium Channels in Drosophila Melanogaster," Nature, 308:189-191 (1984).
Taylor, "The Classification of Amino Acid Conservation," J. Theor. Biol.119:205-218 (1986).
Johansen et al., "Regulated Expression at High Copy Number Allows Production of a Growth-Inhibitory Oncogene Product in Drosophila Schneider Cells," Genes & Development, 3:882-889 (1989).
Bordo et al., "Suggestions for Safe Residue Substitutions in Site-Directed Mutagenesis," J. Mol. Biol., 217-721-729 (1991).
Patton et al., "A Voltage-Dependent Gating Transition Induces Use-Dependent Block by Tetrodotoxin of Rat IIA Sodium Channels Expressed in Xenopus Oocytes," Neuron, 7:637-647 (1991).
Taglialatela et al., "Novel Voltage Clamp to Record Small, Fast Currents from Ion Channels Expressed in Xenopus Oocytes," Biophysical Journal, 61:78-82 (1992).
Heinemann et al., "Clacium Channel Characteristics Conferred on the Sodium Channel by Single Mutations," Nature, 356:441-443 (1992).
Stuhmer, "Electrophysiological Recording from Xenopus Oocytes," Methods in Enzymology, 207:319-339 (1992).
Amichot et al., "Transcription Analysis of the para Gene by In Situ Hybridization and Immunological Characterization of its Expression Product in Wild-type and Mutant Strains of Drosophila," Insect Biochem. Molec. Biol., 23:381-390 (1993).
Mikala et al., "Differential Contribution by Conserved Glutamate Residues to an Ion-Selectivity Site in the L-type Ca.sup.2+ Channel Pore," Federation of European Biochemical Societies, 335:265-269 (1993).
Ingles et al., "Characterization of Sodium Channel Genes From Insecticide-Susceptible and Insecticide-Resistant House Flies," Society for Neuroscience Abstract, 21:1824 (1995).
Ganetzky et al., "Analysis of Mutations Affecting Sodium Channels in Drosophila," Annals New York Academy of Sciences, pp. 325-337.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Calcium permeable insect sodium channels and use thereof does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Calcium permeable insect sodium channels and use thereof, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Calcium permeable insect sodium channels and use thereof will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1514280

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.