[3H]MK801 binding to the NMDA receptor/ionophore complex is regulated by divalent cations: evidence for multiple regulatory sites.
[3H]MK801 binding to the NMDA receptor/ionophore complex is regulated by divalent cations: evidence for multiple regulatory sites.
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[3H]MK801 与 NMDA 受体/离子载体复合物的结合受二价阳离子调节:多个调节位点的证据。
DOI:
10.1016/0014-2999(88)90697-8
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发表时间:
1988
影响因子:
5
通讯作者:
Miller,RJ
中科院分区:
文献类型:
--
作者:
Reynolds,IJ;Miller,RJ
We have examined the ability of divalent and trivalent cations to regulate [3H]MK801 binding to the N-methyl-D- aspartate operated ionophore of rat brain membranes. In EDTA-washed membranes that are nominally free of glutamate and glycine the cations Ba2+, Ca2+, Co2+, La3+, Mn2+,and Sr2+increased [3H]MK801 binding in the range 0.01–10 mM, depending on the cation studied. At higher concentrations (0.1–30 mM) these cations all inhibited binding. In contrast, Cd2+, Hg2+, Mg2+, Ni2+and Zn2+inhibited binding at all concentrations tested. The addition of maximally effective concentrations of glutamate (100 μM) and glycine (30 μM) increased binding by some 200% above control. In the presence of glutamate and glycine all cations except Sr2+only inhibited binding, while the stimulation produced by Sr2+was markedly diminished. The potency of most of the divalent cations tested was increased in the presence of glutamate and glycine. In contrast, Cd2+and Zn2+became less potent, while the potency of Hg2+did not change. Thus, it appears that cations regulate the function of the N-methyl-D-aspartate receptor/ ionophore complex by interacting with at least two separate sites.
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DOI:
--
发表时间:
1981
期刊:
Advances in biochemical psychopharmacology
影响因子:
--
作者:
J. Watkins
通讯作者:
J. Watkins
影响因子:
5
作者:
P. Loo;A. Braunwalder;Michael Williams;M. Sills
通讯作者:
M. Sills
影响因子:
4.7
作者:
F. Nicoletti;J. Wroblewski;E. Costa
通讯作者:
E. Costa
影响因子:
2.5
作者:
D. Javitt;A. Jotkowitz;R. Sircar;S. Zukin
通讯作者:
S. Zukin
DOI:
10.1073/pnas.84.21.7744
发表时间:
1987-11-01
影响因子:
11.1
作者:
REYNOLDS, IJ;MURPHY, SN;MILLER, RJ
通讯作者:
MILLER, RJ