Protein or peptide: Glutamate receptor ionotropic, kainate 2
Protein or peptide: Neuropilin and tolloid-like protein 2
Ligand: 2-acetamido-2-deoxy-beta-D-glucopyranose
Function / homology
Function and homology information
mossy fiber rosette / detection of cold stimulus involved in thermoception / Activation of Na-permeable kainate receptors / kainate selective glutamate receptor complex / Activation of Ca-permeable Kainate Receptor / negative regulation of synaptic transmission, glutamatergic / regulation of short-term neuronal synaptic plasticity / inhibitory postsynaptic potential / glutamate receptor activity / ubiquitin conjugating enzyme binding ...mossy fiber rosette / detection of cold stimulus involved in thermoception / Activation of Na-permeable kainate receptors / kainate selective glutamate receptor complex / Activation of Ca-permeable Kainate Receptor / negative regulation of synaptic transmission, glutamatergic / regulation of short-term neuronal synaptic plasticity / inhibitory postsynaptic potential / glutamate receptor activity / ubiquitin conjugating enzyme binding / neurotransmitter receptor localization to postsynaptic specialization membrane / regulation of neurotransmitter receptor localization to postsynaptic specialization membrane / receptor clustering / modulation of excitatory postsynaptic potential / regulation of JNK cascade / kainate selective glutamate receptor activity / ionotropic glutamate receptor complex / extracellularly glutamate-gated ion channel activity / neuronal action potential / behavioral fear response / positive regulation of synaptic transmission / glutamate-gated receptor activity / ligand-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential / presynaptic modulation of chemical synaptic transmission / excitatory postsynaptic potential / dendrite cytoplasm / hippocampal mossy fiber to CA3 synapse / SNARE binding / synaptic transmission, glutamatergic / transmitter-gated monoatomic ion channel activity involved in regulation of postsynaptic membrane potential / PDZ domain binding / regulation of membrane potential / postsynaptic density membrane / regulation of long-term neuronal synaptic plasticity / ionotropic glutamate receptor binding / modulation of chemical synaptic transmission / terminal bouton / intracellular calcium ion homeostasis / positive regulation of neuron apoptotic process / presynaptic membrane / scaffold protein binding / chemical synaptic transmission / postsynaptic membrane / perikaryon / neuron apoptotic process / negative regulation of neuron apoptotic process / postsynaptic density / axon / neuronal cell body / glutamatergic synapse / synapse / ubiquitin protein ligase binding / dendrite / membrane / identical protein binding / plasma membrane Similarity search - Function
CUB domain / Domain first found in C1r, C1s, uEGF, and bone morphogenetic protein. / CUB domain / CUB domain profile. / Spermadhesin, CUB domain superfamily / Low-density lipoprotein receptor domain class A / Low-density lipoprotein (LDL) receptor class A, conserved site / LDL-receptor class A (LDLRA) domain signature. / LDL-receptor class A (LDLRA) domain profile. / Low-density lipoprotein receptor domain class A ...CUB domain / Domain first found in C1r, C1s, uEGF, and bone morphogenetic protein. / CUB domain / CUB domain profile. / Spermadhesin, CUB domain superfamily / Low-density lipoprotein receptor domain class A / Low-density lipoprotein (LDL) receptor class A, conserved site / LDL-receptor class A (LDLRA) domain signature. / LDL-receptor class A (LDLRA) domain profile. / Low-density lipoprotein receptor domain class A / Low-density lipoprotein (LDL) receptor class A repeat / LDL receptor-like superfamily / Ionotropic glutamate receptor, metazoa / Ligated ion channel L-glutamate- and glycine-binding site / : / Ligand-gated ion channel / Ionotropic glutamate receptor, L-glutamate and glycine-binding domain / Ligated ion channel L-glutamate- and glycine-binding site / Ionotropic glutamate receptor / Eukaryotic homologues of bacterial periplasmic substrate binding proteins. / Receptor, ligand binding region / Receptor family ligand binding region / Periplasmic binding protein-like I Similarity search - Domain/homology
Journal: Nature / Year: 2021 Title: Kainate receptor modulation by NETO2. Authors: Lingli He / Jiahui Sun / Yiwei Gao / Bin Li / Yuhang Wang / Yanli Dong / Weidong An / Hang Li / Bei Yang / Yuhan Ge / Xuejun Cai Zhang / Yun Stone Shi / Yan Zhao / Abstract: Glutamate-gated kainate receptors are ubiquitous in the central nervous system of vertebrates, mediate synaptic transmission at the postsynapse and modulate transmitter release at the presynapse. In ...Glutamate-gated kainate receptors are ubiquitous in the central nervous system of vertebrates, mediate synaptic transmission at the postsynapse and modulate transmitter release at the presynapse. In the brain, the trafficking, gating kinetics and pharmacology of kainate receptors are tightly regulated by neuropilin and tolloid-like (NETO) proteins. Here we report cryo-electron microscopy structures of homotetrameric GluK2 in complex with NETO2 at inhibited and desensitized states, illustrating variable stoichiometry of GluK2-NETO2 complexes, with one or two NETO2 subunits associating with GluK2. We find that NETO2 accesses only two broad faces of kainate receptors, intermolecularly crosslinking the lower lobe of ATD, the upper lobe of LBD and the lower lobe of LBD, illustrating how NETO2 regulates receptor-gating kinetics. The transmembrane helix of NETO2 is positioned proximal to the selectivity filter and competes with the amphiphilic H1 helix after M4 for interaction with an intracellular cap domain formed by the M1-M2 linkers of the receptor, revealing how rectification is regulated by NETO2.
History
Deposition
Jun 21, 2021
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Header (metadata) release
Sep 29, 2021
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Map release
Sep 29, 2021
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Update
Dec 1, 2021
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Current status
Dec 1, 2021
Processing site: PDBj / Status: Released
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Structure visualization
Movie
Surface view with section colored by density value
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