Protein Information

Name cis 4
Synonyms CIS 4; SOCS 4; SOCS4; Suppressor of cytokine signaling 4; CIS4; Cish4; Cytokine inducible SH2 protein 4; HSPC060…

Compound Information

Name strychnine
CAS strychnidin-10-one

Reference List

PubMed Abstract RScore(About this table)
8386310 Woodward RM, Polenzani L, Miledi R: Characterization of bicuculline/baclofen-insensitive (rho-like) gamma-aminobutyric acid receptors expressed in Xenopus oocytes. Mol Pharmacol. 1993 Apr;43(4):609-25.

Conformationally restricted GABA analogues trans- and cis-4-aminocrotonic acid (TACA and CACA) were agonists at the rho-like receptors.
Strychnine (Kb congruent to 70) and SR-95531 (Kb congruent to 35) also were competitive inhibitors of the rho-like receptors but were, respectively, 20 and 240 times more potent at GABAA receptors.
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10561820 Chebib M, Johnston GA: The 'ABC' of GABA receptors: a brief review. Clin Exp Pharmacol Physiol. 1999 Nov;26(11):937-40.

Instead, GABAC receptors are selectively activated by the conformationally restricted analogues of GABA in the folded conformation cis-4-aminocrotonic acid and (1s,2R)-2-(aminomethyl)-1-carboxycyclopropane. (1,2,5,6-Tetrahydropyridine-4-yl) methylphosphinic acid, a methylphosphinic acid analogue of GABA in a partially folded conformation, is a selective antagonist at GABAC receptors.
GABAA and GABAC receptors are members of a super-family of transmitter-gated ion channels that include nicotinic acetylcholine, strychnine-sensitive glycine and 5HT3 receptors.
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7623156 Zhou ZJ, Fain GL: Neurotransmitter receptors of starburst amacrine cells in rabbit retinal slices. J Neurosci. 1995 Jul;15(7 Pt 2):5334-45.


Glycine (30-200 microM) also activated a Cl- conductance in starburst cells, which could be completely blocked by strychnine.
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8890310 Hare WA, Owen WG: Receptive field of the retinal bipolar cell: a pharmacological study in the tiger salamander. J Neurophysiol. 1996 Sep;76(3):2005-19.


Surround responses were not blocked by glycine or its antagonist strychnine, or by combinations of drugs designed to eliminate GABAergic and glycinergic pathways simultaneously. 7.
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