- EMDB-20732: GluA2 in complex with its auxiliary subunit CNIH3 in AS map I - (... -
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基本情報
登録情報
データベース: EMDB / ID: EMD-20732
タイトル
GluA2 in complex with its auxiliary subunit CNIH3 in AS map I - (LBD-TMD-C3(AS) I) - with antagonist ZK200775, without NTD
マップデータ
GluA2 in complex with its auxiliary subunit CNIH3 in AS map I - with antagonist ZK200775, without NTD
試料
複合体: GluA2 in complex with CNIH3 at 4:4 stoichiometry in AS
複合体: Glutamate receptor 2
タンパク質・ペプチド: Glutamate receptor 2
複合体: Protein cornichon homolog 3
タンパク質・ペプチド: Protein cornichon homolog 3
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 / neurotransmitter receptor localization to postsynaptic specialization membrane / spine synapse / 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 / neurotransmitter receptor localization to postsynaptic specialization membrane / spine synapse / dendritic spine neck / dendritic spine head / Activation of AMPA receptors / perisynaptic space / AMPA glutamate receptor activity / ligand-gated monoatomic cation channel activity / Trafficking of GluR2-containing AMPA receptors / response to lithium ion / immunoglobulin binding / AMPA glutamate receptor complex / kainate selective glutamate receptor activity / ionotropic glutamate receptor complex / cellular response to glycine / extracellularly glutamate-gated ion channel activity / asymmetric synapse / regulation of receptor recycling / Unblocking of NMDA receptors, glutamate binding and activation / positive regulation of synaptic transmission / glutamate receptor binding / glutamate-gated receptor activity / regulation of synaptic transmission, glutamatergic / response to fungicide / cytoskeletal protein binding / vesicle-mediated transport / ionotropic glutamate receptor binding / presynaptic active zone membrane / extracellular ligand-gated monoatomic ion channel activity / somatodendritic compartment / glutamate-gated calcium ion channel activity / cellular response to brain-derived neurotrophic factor stimulus / ligand-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential / dendrite membrane / dendrite cytoplasm / ionotropic glutamate receptor signaling pathway / SNARE binding / dendritic shaft / regulation of membrane potential / transmitter-gated monoatomic ion channel activity involved in regulation of postsynaptic membrane potential / synaptic transmission, glutamatergic / PDZ domain binding / protein tetramerization / establishment of protein localization / synaptic membrane / modulation of chemical synaptic transmission / postsynaptic density membrane / terminal bouton / Schaffer collateral - CA1 synapse / cerebral cortex development / receptor internalization / 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
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.
全体 : GluA2 in complex with CNIH3 at 4:4 stoichiometry in AS
全体
名称: GluA2 in complex with CNIH3 at 4:4 stoichiometry in AS
要素
複合体: GluA2 in complex with CNIH3 at 4:4 stoichiometry in AS
複合体: Glutamate receptor 2
タンパク質・ペプチド: Glutamate receptor 2
複合体: Protein cornichon homolog 3
タンパク質・ペプチド: Protein cornichon homolog 3
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超分子 #1: GluA2 in complex with CNIH3 at 4:4 stoichiometry in AS
超分子
名称: GluA2 in complex with CNIH3 at 4:4 stoichiometry in AS タイプ: complex / ID: 1 / 親要素: 0 / 含まれる分子: all 詳細: Bound to antagonist ZK200775 (MPQX). Focused classification and refinement of the LBD, TMD, and CNIH3. The NTD is not aligned. No symmetry imposed.