登録情報 データベース : EMDB / ID : EMD-70122 ダウンロードとリンクタイトル Cryo-EM structure of the human SK2-4 chimera/calmodulin channel complex bound to a small molecule inhibitor マップデータSharpened map 詳細 試料複合体 : Ternary complex of human SK2-4 chimera/calmodulin channel complex bound to a small molecule inhibitor複合体 : Human SK2-4 chimeric channelタンパク質・ペプチド : Intermediate conductance calcium-activated potassium channel protein 4,Small conductance calcium-activated potassium channel protein 2 chimera複合体 : Human calmodulinリガンド : N-(2,1,3-benzoxadiazol-4-yl)-3-(4-methoxybenzene-1-sulfonamido)benzamideリガンド : POTASSIUM IONリガンド : CALCIUM ION 詳細 キーワード Ion channel / Potassium / Inhibitor / Calmodulin / TRANSPORT PROTEIN-INHIBITOR complex機能・相同性 機能・相同性情報分子機能 ドメイン・相同性 構成要素
intermediate conductance calcium-activated potassium channel activity / saliva secretion / small conductance calcium-activated potassium channel activity / Acetylcholine inhibits contraction of outer hair cells / membrane repolarization during atrial cardiac muscle cell action potential / stabilization of membrane potential / Ca2+ activated K+ channels / macropinocytosis / calcium-activated potassium channel activity / regulation of calcium ion import across plasma membrane ... intermediate conductance calcium-activated potassium channel activity / saliva secretion / small conductance calcium-activated potassium channel activity / Acetylcholine inhibits contraction of outer hair cells / membrane repolarization during atrial cardiac muscle cell action potential / stabilization of membrane potential / Ca2+ activated K+ channels / macropinocytosis / calcium-activated potassium channel activity / regulation of calcium ion import across plasma membrane / positive regulation of potassium ion transmembrane transport / inward rectifier potassium channel activity / cell volume homeostasis / regulation of potassium ion transmembrane transport / CaM pathway / Cam-PDE 1 activation / Sodium/Calcium exchangers / Calmodulin induced events / positive regulation of ryanodine-sensitive calcium-release channel activity / Reduction of cytosolic Ca++ levels / Activation of Ca-permeable Kainate Receptor / CREB1 phosphorylation through the activation of CaMKII/CaMKK/CaMKIV cascasde / Loss of phosphorylation of MECP2 at T308 / phospholipid translocation / CREB1 phosphorylation through the activation of Adenylate Cyclase / CaMK IV-mediated phosphorylation of CREB / PKA activation / negative regulation of high voltage-gated calcium channel activity / Glycogen breakdown (glycogenolysis) / CLEC7A (Dectin-1) induces NFAT activation / Activation of RAC1 downstream of NMDARs / organelle localization by membrane tethering / negative regulation of ryanodine-sensitive calcium-release channel activity / mitochondrion-endoplasmic reticulum membrane tethering / autophagosome membrane docking / negative regulation of calcium ion export across plasma membrane / regulation of cardiac muscle cell action potential / presynaptic endocytosis / Synthesis of IP3 and IP4 in the cytosol / regulation of cell communication by electrical coupling involved in cardiac conduction / Phase 0 - rapid depolarisation / positive regulation of T cell receptor signaling pathway / calcineurin-mediated signaling / Negative regulation of NMDA receptor-mediated neuronal transmission / Unblocking of NMDA receptors, glutamate binding and activation / alpha-actinin binding / RHO GTPases activate PAKs / Ion transport by P-type ATPases / Uptake and function of anthrax toxins / regulation of ryanodine-sensitive calcium-release channel activity / Long-term potentiation / protein phosphatase activator activity / Calcineurin activates NFAT / Regulation of MECP2 expression and activity / DARPP-32 events / catalytic complex / Smooth Muscle Contraction / immune system process / detection of calcium ion / potassium channel activity / regulation of cardiac muscle contraction / RHO GTPases activate IQGAPs / regulation of cardiac muscle contraction by regulation of the release of sequestered calcium ion / calcium channel inhibitor activity / cellular response to interferon-beta / Protein methylation / presynaptic cytosol / Activation of AMPK downstream of NMDARs / Ion homeostasis / regulation of release of sequestered calcium ion into cytosol by sarcoplasmic reticulum / eNOS activation / titin binding / Tetrahydrobiopterin (BH4) synthesis, recycling, salvage and regulation / sperm midpiece / voltage-gated potassium channel complex / regulation of calcium-mediated signaling / potassium ion transmembrane transport / calcium channel complex / substantia nigra development / FCERI mediated Ca+2 mobilization / Ras activation upon Ca2+ influx through NMDA receptor / regulation of heart rate / FCGR3A-mediated IL10 synthesis / calyx of Held / Antigen activates B Cell Receptor (BCR) leading to generation of second messengers / adenylate cyclase activator activity / sarcomere / VEGFR2 mediated cell proliferation / regulation of cytokinesis / protein serine/threonine kinase activator activity / VEGFR2 mediated vascular permeability / positive regulation of protein secretion / Translocation of SLC2A4 (GLUT4) to the plasma membrane / spindle microtubule / positive regulation of receptor signaling pathway via JAK-STAT / establishment of localization in cell / RAF activation / Transcriptional activation of mitochondrial biogenesis / defense response / potassium ion transport 類似検索 - 分子機能 Calmodulin-binding domain / Potassium channel, calcium-activated, SK / SK, calmodulin-binding domain superfamily / Calmodulin binding domain / Calcium-activated SK potassium channel / Calmodulin binding domain / Potassium channel domain / Ion channel / : / EF-hand domain pair ... Calmodulin-binding domain / Potassium channel, calcium-activated, SK / SK, calmodulin-binding domain superfamily / Calmodulin binding domain / Calcium-activated SK potassium channel / Calmodulin binding domain / Potassium channel domain / Ion channel / : / EF-hand domain pair / EF-hand, calcium binding motif / EF-Hand 1, calcium-binding site / EF-hand calcium-binding domain. / EF-hand calcium-binding domain profile. / EF-hand domain / EF-hand domain pair 類似検索 - ドメイン・相同性 Intermediate conductance calcium-activated potassium channel protein 4 / Calmodulin-1 / Small conductance calcium-activated potassium channel protein 2 類似検索 - 構成要素生物種 Homo sapiens (ヒト)手法 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度 : 3.3 Å 詳細 データ登録者Cassell SJ / Khoshouei M / Wilhelm WA / Whicher JR 資金援助 1件 詳細 詳細を隠すOrganization Grant number 国 Not funded
引用ジャーナル : To Be Published タイトル : Mechanism of SK2 channel gating and its modulation by the bee toxin apamin and small molecules著者 : Cassell SJ / Li W / Krautwald S / Khoshouei M / Lee YT / Hou J / Guan W / Peukert S / Wilhelm WA / Whicher JR 履歴 登録 2025年4月9日 - ヘッダ(付随情報) 公開 2025年7月9日 - マップ公開 2025年7月9日 - 更新 2025年7月9日 - 現状 2025年7月9日 処理サイト : RCSB / 状態 : 公開
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