Abstract:
:The orphan GluD2 receptor belongs to the ionotropic glutamate receptor family but does not bind glutamate. Ligand-gated GluD2 currents have never been evidenced, and whether GluD2 operates as an ion channel has been a long-standing question. Here, we show that GluD2 gating is triggered by type 1 metabotropic glutamate receptors, both in a heterologous expression system and in Purkinje cells. Thus, GluD2 is not only an adhesion molecule at synapses but also works as a channel. This gating mechanism reveals new properties of glutamate receptors that emerge from their interaction and opens unexpected perspectives regarding synaptic transmission and plasticity.
journal_name
EMBO Repjournal_title
EMBO reportsauthors
Ady V,Perroy J,Tricoire L,Piochon C,Dadak S,Chen X,Dusart I,Fagni L,Lambolez B,Levenes Cdoi
10.1002/embr.201337371subject
Has Abstractpub_date
2014-01-01 00:00:00pages
103-9issue
1eissn
1469-221Xissn
1469-3178pii
embr.201337371journal_volume
15pub_type
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