Anatomical and pharmacological heterogeneity of D-[3H]aspartate binding sites.
Anatomical and pharmacological heterogeneity of D-[3H]aspartate binding sites.
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D-[3H]天冬氨酸结合位点的解剖学和药理学异质性。
DOI:
10.1016/0014-2999(90)90220-z
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发表时间:
1990
影响因子:
5
通讯作者:
Vickroy,TW
中科院分区:
文献类型:
--
作者:
Anderson,KJ;Vickroy,TW
Excitatory amino acids (EAA), including glutamate and aspartate, are removed from the extraceUular space by high affinity transporters located on presynaptic terminals and astroglia. The majority of transport is thought to occur via a sodium-dependent process which has been well characterized in tissue slices, homogenates and isolated neurons and glia. The metabolically inert analog D-[3H] aspartate shows high and specific affinity for the sodium-dependent transporter and thus has been used extensively to characterize transport and binding properties in CNS tissues. In autoradiographic studies, sodium-dependent D-[3H] aspartate has been shown to bind saturably and specifically to a single class (Hill coefficient 0.96) of high affinity (K d= 0.57/~ M) sites throughout the forebrain and cerebellum (Anderson et al., in press). In competition assays, D, L-threo-fl-hydroxyaspartate appears to have equal affinity for the sodium-dependent carrier as D-aspartate (K i 0.51/xM) although the Hill coefficient for this interaction is significantly less than 1 (Anderson et al., in press; Greenamyre et al., 1990). Previous studies using the racemic mixture of this compound have shown that it is one of the most potent inhibitors of sodium-dependent transport (Balcar and Johnston, 1972). In this study, we report that the stereoisomers of threo-fl-hydroxy-
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DOI:
--
发表时间:
1971
期刊:
影响因子:
--
作者:
Yu. l. Naberukhin;V. A. Rogov
通讯作者:
V. A. Rogov
DOI:
10.1021/j150618a022
发表时间:
1981-09
期刊:
The Journal of Physical Chemistry
影响因子:
--
作者:
K. Zachariasse;N. Phuc;B. Kozankiewicz
通讯作者:
K. Zachariasse;N. Phuc;B. Kozankiewicz
DOI:
--
发表时间:
1981
期刊:
影响因子:
--
作者:
H. Langhals
通讯作者:
H. Langhals
DOI:
--
发表时间:
1985
期刊:
影响因子:
--
作者:
T. Hanai;J. Hubert
通讯作者:
J. Hubert
影响因子:
1.3
作者:
Sonja J. Hansen;J. Callis
通讯作者:
J. Callis