Protein Information

Name 5 HT3 receptor
Synonyms 5 HT 3; 5 hydroxytryptamine 3 receptor; serotonin receptor; HTR 3; HTR3; 5 HT3; 5 HT3A; 5 HT3R…

Compound Information

Name α-chlorohydrin
CAS 3-chloro-1,2-propanediol

Reference List

PubMed Abstract RScore(About this table)
7541281 Downie DL, Hope AG, Belelli D, Lambert JJ, Peters JA, Bentley KR, Steward LJ, Chen CY, Barnes NM: The interaction of trichloroethanol with murine recombinant 5-HT3 receptors. Br J Pharmacol. 1995 Apr;114(8):1641-51.

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9726627 Bentley KR, Barnes NM: 5-hydroxytryptamine3 (5-HT3) receptor-mediated depolarisation of the rat isolated vagus nerve: modulation by trichloroethanol and related alcohols. Eur J Pharmacol. 1998 Jul 31;354(1):25-31.

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9518697 Zhou Q, Verdoorn TA, Lovinger DM: Alcohols potentiate the function of 5-HT3 receptor-channels on NCB-20 neuroblastoma cells by favouring and stabilizing the open channel state. J Physiol. 1998 Mar 1;507 ( Pt 2):335-52.

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10728877 Lovinger DM, Sung KW, Zhou Q: Ethanol and trichloroethanol alter gating of 5-HT3 receptor-channels in NCB-20 neuroblastoma cells. Neuropharmacology. 2000 Feb 14;39(4):561-70.

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8496823 Lovinger DM, Zhou Q: Trichloroethanol potentiation of 5-hydroxytryptamine3 receptor-mediated ion current in nodose ganglion neurons from the adult rat. J Pharmacol Exp Ther. 1993 May;265(2):771-6.


Trichloroethanol (TCEt) potentiated ion current mediated by 5-hydroxytryptamine (5-HT) 3 receptors in isolated adult rat nodose ganglion neurons.
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11834892 Solt K, Johansson JS: Binding of the active metabolite of chloral hydrate, 2,2,2-trichloroethanol, to serum albumin demonstrated using tryptophan fluorescence quenching. Pharmacology. 2002;64(3):152-9.


There is evidence that TCE potentiates the action of ligand-gated ion channels such as the GABA (A) and 5-HT (3) receptors, and the present results suggest that anesthetic alcohols may act by binding to these proteins and inducing structural changes that may in turn alter protein function.
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16257471 Hayrapetyan V, Jenschke M, Dillon GH, Machu TK: Co-expression of the 5-HT (3B) subunit with the 5-HT (3A) receptor reduces alcohol sensitivity. Brain Res Mol Brain Res. 2005 Dec 14;142(2):146-50. Epub 2005 Oct 28.


Where alcohol-induced increases in peak amplitude were observed, the slope of the 20-80% rising phase of current onset was also enhanced, suggesting that increases in activation rate may be one mechanism through which alcohols enhance function of the 5-HT (3) receptors.
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18094321 Hu XQ, Peoples RW: Arginine 246 of the pretransmembrane domain 1 region alters 2,2,2-trichloroethanol action in the 5-hydroxytryptamine3A receptor. J Pharmacol Exp Ther. 2008 Mar;324(3):1011-8. Epub 2007 Dec 19.


The current activated by trichloroethanol could be blocked by the competitive 5-HT (3) receptor antagonist tropanyl 3,5-dichlorobenzoate (MDL 72222), and it had a similar reversal potential to those of current activated by 5-HT.
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