Long sleep and short sleep mice differ in nicotine-stimulated 86Rb+ efflux and alpha4 nicotinic receptor subunit cDNA sequence.
Long sleep and short sleep mice differ in nicotine-stimulated 86Rb+ efflux and alpha4 nicotinic receptor subunit cDNA sequence.
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长睡眠和短睡眠小鼠在尼古丁刺激的 86Rb 流出和 α4 烟碱受体亚基 cDNA 序列上存在差异。
DOI:
10.1097/00008571-200106000-00008
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发表时间:
2001
期刊:
影响因子:
--
通讯作者:
Collins,AC
中科院分区:
文献类型:
--
作者:
Stitzel,JA;Dobelis,P;Jimenez,M;Collins,AC
In a recent study, we reported that a restriction fragment length polymorphism associated with the α 4 nicotinic receptor gene (Chrna4) may play a role in regulating differential sensitivity of LS and SS mouse lines to the seizure-inducing effects of nicotine. Since the α 4 subunit (CHRNA4) is often found as a heteromer with the β 2 subunit (CHRNB2), α 4 and β 2 cDNAs from the LS and SS mice were cloned and sequenced. A polymorphism in the coding portion of the α 4 gene was found (1587A to G) which should result in a threonine/alanine substitution at position 529 (T529A). The LS and SS β 2 nicotinic receptor subunit cDNAs were identical. The potential consequences of the α 4 polymorphism were evaluated using an ion (86 Rb+) flux assay that likely measures the function of α 4 β 2-type receptors. LS–SS differences in maximal nicotine-stimulated ion flux were seen when bovine serum albumin (BSA) was not included but this difference was not seen when BSA was included in the perfusion buffer. Current evidence suggests that BSA may alter the ratio of nicotinic receptors that are in the ground state and desensitized forms. Thus, it may be that the Chrna4 T529A substitution leads to a difference in the ratio of the two receptor forms which then promotes differences in receptor function, as well as differential behavioural sensitivity to nicotine.
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DOI:
--
发表时间:
1992
期刊:
The Journal of pharmacology and experimental therapeutics
影响因子:
--
作者:
deFiebre,CM;Collins,AC
通讯作者:
Collins,AC
DOI:
10.1111/j.1530-0277.1989.tb00310.x
发表时间:
1989-04-01
期刊:
ALCOHOL-CLINICAL AND EXPERIMENTAL RESEARCH
影响因子:
--
作者:
DEFRIES, JC;WILSON, JR;PETERSEN, DR
通讯作者:
PETERSEN, DR
影响因子:
3.6
作者:
Gurantz,D;Margiotta,JF;Harootunian,AT;Dionne,VE
通讯作者:
Dionne,VE
影响因子:
1.9
作者:
A. Bullock;Brian S. Slobe;Vimarie Vázquez;A. C. Collins
通讯作者:
A. C. Collins
DOI:
--
发表时间:
1998
期刊:
The Journal of pharmacology and experimental therapeutics.
影响因子:
--
作者:
Stitzel,JA;Blanchette,JM;Collins,AC
通讯作者:
Collins,AC