Protein Information

Name gamma aminobutyric acid receptor (protein family or complex)
Synonyms GABA receptor; GABA receptors; GABA(A) receptor; GABA(A) receptors; Gamma aminobutyric acid receptor; Gamma aminobutyric acid receptors

Compound Information

Name cypermethrin
CAS cyano(3-phenoxyphenyl)methyl 3-(2,2-dichloroethenyl)-2,2-dimethylcyclopropanecarboxylate

Reference List

PubMed Abstract RScore(About this table)
6090849 Cole LM, Lawrence LJ, Casida JE: Similar properties of [35S] t-butylbicyclophosphorothionate receptor and coupled components of the GABA receptor-ionophore complex in brains of human, cow, rat, chicken and fish. Life Sci. 1984 Oct 22;35(17):1755-62.

This species similarity includes dissociation constants of 61-77 nM at 37 degrees C, maximum receptor densities of 3-7 pmol/mg protein, and sensitivity to inhibition or displacement by gamma-aminobutyric acid (GABA), two cage convulsants (picrotoxinin and t-butylbicycloorthobenzoate) and the insecticide [1R,cis, alpha S]-cypermethrin, indicating a constancy during vertebrate evolution of the [35S] TBPS binding site and its coupling with other components of the GABA receptor-ionophore complex.
83(1,1,1,3) Details
6310756 Lawrence LJ, Casida JE: Stereospecific action of pyrethroid insecticides on the gamma-aminobutyric acid receptor-ionophore complex. Science. 1983 Sep 30;221(4618):1399-401.

Scatchard analysis indicates that picrotoxinin inhibition of t-butylbicyclophosphorothionate binding is competitive whereas cypermethrin inhibition possibly involves a closely associated site in the gamma-aminobutyric acid receptor-ionophore complex.
82(1,1,1,2) Details
3029901 Crofton KM, Reiter LW, Mailman RB: Pyrethroid insecticides and radioligand displacement from the GABA receptor chloride ionophore complex. Toxicol Lett. 1987 Feb;35(2-3):183-90.

2(0,0,0,2) Details
2981097 Seifert J, Casida JE: Solubilization and detergent effects on interactions of some drugs and insecticides with the t-butylbicyclophosphorothionate binding site within the gamma-aminobutyric acid receptor-ionophore complex. J Neurochem. 1985 Jan;44(1):110-6.

Levels of (1R, alpha S)-cis-cypermethrin and dimethylbutylbarbiturate which are inhibitory with RBM are moderately stimulatory after TBPS receptor solubilization.
2(0,0,0,2) Details
2998820 Seifert J, Casida JE: Regulation of [35S] t-butylbicyclophosphorothionate binding sites in rat brain by GABA, pyrethroid and barbiturate. Eur J Pharmacol. 1985 Sep 24;115(2-3):191-8.

GABA regulates the binding of [35S] t-butylbicyclophosphorothionate ([35S] TBPS) within the GABA receptor-ionophore complex by decreasing the rate of radioligand association and increasing the rate of dissociation but in different ways for the EDTA/water-dialyzed rat brain membranes and a solubilized preparation obtained on treatment with the zwitterionic detergent CHAPS.
GABA at micromolar levels also greatly influences the action of compounds within the TBPS domain, facilitating and modulating displacement of [35S] TBPS from EDTA/water-dialyzed membranes by the alpha-cyanopyrethroid cypermethrin and the barbiturate 5-(1',3'-dimethylbutyl)-5-ethylbarbiturate.
1(0,0,0,1) Details
2985459 Gammon DW: Correlations between in vitro and in vivo mechanisms of pyrethroid insecticide action. Fundam Appl Toxicol. 1985 Feb;5(1):9-23.

Studies of poisoning signs and nerve disruptions in vivo in the mouse and cockroach, using diazepam in conjunction with pyrethroids, implicated the GABA-receptor complex as a target for alpha-CN-phenoxybenzyl pyrethroids.
It also showed two modes of action for permethrin and cypermethrin, its alpha-cyano analog.
1(0,0,0,1) Details
2850922 Seifert J: Ontogenesis and properties of the convulsant recognition site (s) of the gamma-aminobutyric acid (GABA) receptor complex in chicken embryo. Eur J Pharmacol. 1988 Jul 14;151(3):443-8.

The pharmacological properties of the embryonic recognition site (s) do not undergo significant changes during hatching based on the affinity of embryonic and chick brain membranes for [3H] TBOB; the rate of association and dissociation for TBOB; non-competitive inhibition of [3H] TBOB binding and modulation of 1R, alpha S-cis-cypermethrin interaction with the recognition site (s) by GABA; and inhibition of radioligand binding by endrin, picrotoxinin and TBPS.
1(0,0,0,1) Details
2455860 Brown GB, Gaupp JE, Olsen RW: Pyrethroid insecticides: stereospecific allosteric interaction with the batrachotoxinin-A benzoate binding site of mammalian voltage-sensitive sodium channels. Mol Pharmacol. 1988 Jul;34(1):54-9.

Their mechanism of action is thought to involve effects primarily at the voltage-sensitive sodium channel of both insect and mammalian neurons, although recent studies have raised the possibility that these compounds may also act at the gamma-aminobutyric acid receptor-chloride ionophore complex.
Comparison of the rank order of potency for enhancement of [3H] batrachotoxinin-A 20-alpha-benzoate binding and insecticidal activity in a series of toxic stereoisomers of cypermethrin, representative of the class, reveals a correlation between the two measures.
1(0,0,0,1) Details
3009836 Abalis IM, Eldefrawi ME, Eldefrawi AT: Effects of insecticides on GABA-induced chloride influx into rat brain microsacs. J Toxicol Environ Health. 1986;18(1):13-23.

The actions of different insecticides known to affect binding of ligands to gamma-aminobutyric acid (GABA) receptors were studied on the function of GABAA receptors in rat brain as assayed by GABA-induced 36Cl- influx into membrane microsacs.
The four pyrethroids tested also inhibited the GABA-induced 36Cl- flux with the following decreasing potencies: 1R,cis,alpha S-cypermethrin greater than 1R,trans, alpha S-cypermethrin greater than fluvalinate greater than allethrin.
1(0,0,0,1) Details
8054658 Bloomquist JR: Cyclodiene resistance at the insect GABA receptor/chloride channel complex confers broad cross resistance to convulsants and experimental phenylpyrazole insecticides. Arch Insect Biochem Physiol. 1994;26(1):69-79.

In contrast, this strain was susceptible to cypermethrin and the avermectins MK-243, abamectin, and abamectin 8,9-oxide.
1(0,0,0,1) Details