RGD Reference Report - Rat GluR7 and a carboxy-terminal splice variant, GluR7b, are functional kainate receptor subunits with a low sensitivity to glutamate. - Rat Genome Database

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Rat GluR7 and a carboxy-terminal splice variant, GluR7b, are functional kainate receptor subunits with a low sensitivity to glutamate.

Authors: Schiffer, HH  Swanson, GT  Heinemann, SF 
Citation: Schiffer HH, etal., Neuron 1997 Nov;19(5):1141-6.
RGD ID: 728668
Pubmed: PMID:9390526   (View Abstract at PubMed)

Glutamate receptors of the kainate-preferring subtype have recently been shown to mediate synaptic transmission in the hippocampus. The low-affinity kainate receptor subunit GluR7 was found to be nonfunctional in previous studies. We report here that the GluR7 subunit and a novel carboxy-terminal splice variant, GluR7b, are functional glutamate receptors with unique pharmacological properties. In particular, glutamate exhibits a 10-fold lower potency for (non-desensitized) GluR7-mediated currents as compared to other non-NMDA receptor channels. These data will facilitate understanding of the distinct role played by GluR7 receptors in synaptic transmission.

Gene Ontology Annotations    Click to see Annotation Detail View

Biological Process
TermQualifierEvidenceWithReferenceNotesSourceOriginal Reference(s)
chemical synaptic transmission  NAS 728668 RGD 

Molecular Function
TermQualifierEvidenceWithReferenceNotesSourceOriginal Reference(s)
glutamate receptor activity  IDA 728668 RGD 
glutamate-gated receptor activity contributes_toIDA 728668; 728668PMID:9390526UniProt 

Objects Annotated

Genes (Rattus norvegicus)
Grik3  (glutamate ionotropic receptor kainate type subunit 3)
Grik4  (glutamate ionotropic receptor kainate type subunit 4)
Grik5  (glutamate ionotropic receptor kainate type subunit 5)


Additional Information