Crystal Structure of the GluR0 Ligand-Binding Core from Nostoc punctiforme in Complex with l-Glutamate: Structural Dissection of the Ligand Interaction and Subunit Interface

GluR0 from Nostoc punctiforme (NpGluR0) is a bacterial homologue of the ionotropic glutamate receptor (iGluR). We have solved the crystal structure of the ligand-binding core of NpGluR0 in complex with l-glutamate at a resolution of 2.1 Å. The structure exhibits a noncanonical ligand interaction and...

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