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FEBS Lett. 1992 Mar 23;300(1):39-45.

Cloning, expression and modulation of a mouse NMDA receptor subunit.

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Department of Neuropharmacology, Niigata University, Japan.


The primary structure and presence of two forms of the mouse N-methyl-D-aspartate (NMDA) receptor channel subunit zeta 1 have been disclosed by cloning and sequencing the cDNAs. The zeta 1 subunit shows approximately 20% amino acid sequence identities with the rodent alpha-amino-3-hydroxy-5-methyl-4-isoxazole propionic acid (AMPA)- or kainate-selective GluR subunits and has structural features common to neurotransmitter-gated ion channels. Functional homomeric zeta 1 channels expressed in Xenopus oocytes by injection of the subunit-specific mRNA exhibit current responses characteristic for the NMDA receptor channel such as activation by glycine, Ca2+ permeability, blocking by Mg2+ and activation by polyamine. It has been found that the zeta 1 channel activity is positively modulated by treatment with 12-O-tetradecanoylphorbol 13-acetate (TPA).

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