- PDB-6ud4: GluA2 in complex with its auxiliary subunit CNIH3 in AS map II - ... -
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基本情報
登録情報
データベース: PDB / ID: 6ud4
タイトル
GluA2 in complex with its auxiliary subunit CNIH3 in AS map II - (LBD-TMD-C3(AS) II)- with antagonist ZK200775, without NTD
要素
Glutamate receptor 2
Protein cornichon homolog 3
キーワード
TRANSPORT PROTEIN / ionotropic glutamate receptor / AMPA receptor / cornichon / auxiliary subunit / ion channel / ligand gated ion channel / synaptic transmission / excitatory synaptic transmission / neurotransmitter receptor / stargazin / TARP / lipid / MPQX
機能・相同性
機能・相同性情報
Cargo concentration in the ER / COPII-mediated vesicle transport / localization within membrane / channel regulator activity / regulation of AMPA receptor activity / spine synapse / neurotransmitter receptor localization to postsynaptic specialization membrane / dendritic spine neck / dendritic spine head / Activation of AMPA receptors ...Cargo concentration in the ER / COPII-mediated vesicle transport / localization within membrane / channel regulator activity / regulation of AMPA receptor activity / spine synapse / neurotransmitter receptor localization to postsynaptic specialization membrane / dendritic spine neck / dendritic spine head / Activation of AMPA receptors / perisynaptic space / ligand-gated monoatomic cation channel activity / AMPA glutamate receptor activity / Trafficking of GluR2-containing AMPA receptors / response to lithium ion / kainate selective glutamate receptor activity / AMPA glutamate receptor complex / cellular response to glycine / extracellularly glutamate-gated ion channel activity / ionotropic glutamate receptor complex / asymmetric synapse / immunoglobulin binding / regulation of receptor recycling / Unblocking of NMDA receptors, glutamate binding and activation / glutamate receptor binding / positive regulation of synaptic transmission / response to fungicide / regulation of synaptic transmission, glutamatergic / glutamate-gated receptor activity / cytoskeletal protein binding / vesicle-mediated transport / presynaptic active zone membrane / extracellular ligand-gated monoatomic ion channel activity / cellular response to brain-derived neurotrophic factor stimulus / glutamate-gated calcium ion channel activity / somatodendritic compartment / ligand-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential / ionotropic glutamate receptor binding / dendrite membrane / ionotropic glutamate receptor signaling pathway / dendrite cytoplasm / SNARE binding / dendritic shaft / regulation of membrane potential / PDZ domain binding / synaptic transmission, glutamatergic / transmitter-gated monoatomic ion channel activity involved in regulation of postsynaptic membrane potential / protein tetramerization / synaptic membrane / establishment of protein localization / postsynaptic density membrane / modulation of chemical synaptic transmission / cerebral cortex development / receptor internalization / Schaffer collateral - CA1 synapse / terminal bouton / synaptic vesicle membrane / synaptic vesicle / presynapse / signaling receptor activity / amyloid-beta binding / presynaptic membrane / growth cone / scaffold protein binding / chemical synaptic transmission / dendritic spine / perikaryon / postsynaptic membrane / neuron projection / postsynaptic density / axon / neuronal cell body / synapse / dendrite / protein-containing complex binding / protein kinase binding / glutamatergic synapse / cell surface / endoplasmic reticulum / protein-containing complex / identical protein binding / membrane / plasma membrane 類似検索 - 分子機能
Cornichon / Cornichon, conserved site / Cornichon protein / Cornichon family signature. / Cornichon / Ionotropic glutamate receptor, metazoa / Ligated ion channel L-glutamate- and glycine-binding site / Ionotropic glutamate receptor, L-glutamate and glycine-binding domain / Ligated ion channel L-glutamate- and glycine-binding site / Ligand-gated ion channel ...Cornichon / Cornichon, conserved site / Cornichon protein / Cornichon family signature. / Cornichon / Ionotropic glutamate receptor, metazoa / Ligated ion channel L-glutamate- and glycine-binding site / Ionotropic glutamate receptor, L-glutamate and glycine-binding domain / Ligated ion channel L-glutamate- and glycine-binding site / Ligand-gated ion channel / : / 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 類似検索 - ドメイン・相同性
National Institutes of Health/Eunice Kennedy Shriver National Institute of Child Health & Human Development (NIH/NICHD)
R01HD061543
米国
引用
ジャーナル: Science / 年: 2019 タイトル: Structures of the AMPA receptor in complex with its auxiliary subunit cornichon. 著者: Terunaga Nakagawa / 要旨: In the brain, AMPA-type glutamate receptors (AMPARs) form complexes with their auxiliary subunits and mediate the majority of fast excitatory neurotransmission. Signals transduced by these complexes ...In the brain, AMPA-type glutamate receptors (AMPARs) form complexes with their auxiliary subunits and mediate the majority of fast excitatory neurotransmission. Signals transduced by these complexes are critical for synaptic plasticity, learning, and memory. The two major categories of AMPAR auxiliary subunits are transmembrane AMPAR regulatory proteins (TARPs) and cornichon homologs (CNIHs); these subunits share little homology and play distinct roles in controlling ion channel gating and trafficking of AMPAR. Here, I report high-resolution cryo-electron microscopy structures of AMPAR in complex with CNIH3. Contrary to its predicted membrane topology, CNIH3 lacks an extracellular domain and instead contains four membrane-spanning helices. The protein-protein interaction interface that dictates channel modulation and the lipids surrounding the complex are revealed. These structures provide insights into the molecular mechanism for ion channel modulation and assembly of AMPAR/CNIH3 complexes.