Title : Separating dual effects of zinc at recombinant N-methyl-D-aspartate receptors.

Pub. Date : 1996 Aug 30

PMID : 8880741






10 Functional Relationships(s)
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Compound Name
Protein Name
Organism
1 Zn2+ inhibited macroscopic currents induced by NMDA at both NR1/NR2B and NR1/NR2A receptors. Zinc glutamate ionotropic receptor NMDA type subunit 1 L homeolog Xenopus laevis
2 Zn2+ inhibited macroscopic currents induced by NMDA at both NR1/NR2B and NR1/NR2A receptors. Zinc glutamate ionotropic receptor NMDA type subunit 1 L homeolog Xenopus laevis
3 At NR1/NR2B receptors the Zn2+ concentration-inhibition curve was monophasic, with an apparent affinity for Zn2/ of 1.6 microM, and inhibition by Zn2+ was not voltage-dependent. Zinc glutamate ionotropic receptor NMDA type subunit 1 L homeolog Xenopus laevis
4 In contrast, the Zn2+ concentration-inhibition curve at NR1/NR2A receptors was biphasic, with high (Ki = 0.08 microM) and low (Ki = 30 microM) affinity components. Zinc glutamate ionotropic receptor NMDA type subunit 1 L homeolog Xenopus laevis
5 Thus, Zn2+ is more potent in producing voltage-independent block at NR1/NR2A than at NR1/NR2B receptors, but the maximal effect of Zn2+ is smaller at NR1/NR2A than at NR1/NR2B receptors. Zinc glutamate ionotropic receptor NMDA type subunit 1 L homeolog Xenopus laevis
6 Thus, Zn2+ is more potent in producing voltage-independent block at NR1/NR2A than at NR1/NR2B receptors, but the maximal effect of Zn2+ is smaller at NR1/NR2A than at NR1/NR2B receptors. Zinc glutamate ionotropic receptor NMDA type subunit 1 L homeolog Xenopus laevis
7 Thus, Zn2+ is more potent in producing voltage-independent block at NR1/NR2A than at NR1/NR2B receptors, but the maximal effect of Zn2+ is smaller at NR1/NR2A than at NR1/NR2B receptors. Zinc glutamate ionotropic receptor NMDA type subunit 1 L homeolog Xenopus laevis
8 Thus, Zn2+ is more potent in producing voltage-independent block at NR1/NR2A than at NR1/NR2B receptors, but the maximal effect of Zn2+ is smaller at NR1/NR2A than at NR1/NR2B receptors. Zinc glutamate ionotropic receptor NMDA type subunit 1 L homeolog Xenopus laevis
9 The low affinity component of Zn2+ inhibition at NR1/NR2A receptors was voltage-dependent and may represent an open-channel blocking effect of Zn2+. Zinc glutamate ionotropic receptor NMDA type subunit 1 L homeolog Xenopus laevis
10 The low affinity component of Zn2+ inhibition at NR1/NR2A receptors was voltage-dependent and may represent an open-channel blocking effect of Zn2+. Zinc glutamate ionotropic receptor NMDA type subunit 1 L homeolog Xenopus laevis