登録情報 データベース : EMDB / ID : EMD-74626 ダウンロードとリンクタイトル Cryo-EM structure of KCa3.1_II/calmodulin channel in complex with SKA111. マップデータCryo-EM map of KCa3.1_II/calmodulin channel in complex with SKA111. 詳細 試料複合体 : Cryo-EM structure of KCa3.1_II/calmodulin channel in complex with SKA111.タンパク質・ペプチド : Intermediate conductance calcium-activated potassium channel protein 4タンパク質・ペプチド : Calmodulin-1リガンド : POTASSIUM ION 詳細 キーワード Intermediate conductance calcium-activated potassium channel / Ion channel / Calmodulin binding protein / TRANSPORT PROTEIN / MEMBRANE PROTEIN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 / 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 / positive regulation of T cell receptor signaling pathway ... intermediate conductance calcium-activated potassium channel activity / saliva secretion / small conductance calcium-activated potassium channel activity / 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 / positive regulation of T cell receptor signaling pathway / cell volume homeostasis / CaM pathway / Cam-PDE 1 activation / Sodium/Calcium exchangers / phospholipid translocation / Calmodulin induced events / 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 / CREB1 phosphorylation through the activation of Adenylate Cyclase / negative regulation of high voltage-gated calcium channel activity / PKA activation / CaMK IV-mediated phosphorylation of CREB / Glycogen breakdown (glycogenolysis) / CLEC7A (Dectin-1) induces NFAT activation / Activation of RAC1 downstream of NMDARs / negative regulation of ryanodine-sensitive calcium-release channel activity / organelle localization by membrane tethering / mitochondrion-endoplasmic reticulum membrane tethering / autophagosome membrane docking / negative regulation of calcium ion export across plasma membrane / regulation of ryanodine-sensitive calcium-release channel activity / regulation of cardiac muscle cell action potential / presynaptic endocytosis / Synthesis of IP3 and IP4 in the cytosol / Phase 0 - rapid depolarisation / Negative regulation of NMDA receptor-mediated neuronal transmission / Unblocking of NMDA receptors, glutamate binding and activation / RHO GTPases activate PAKs / calcineurin-mediated signaling / regulation of cell communication by electrical coupling involved in cardiac conduction / Ion transport by P-type ATPases / Uptake and function of anthrax toxins / protein phosphatase activator activity / Long-term potentiation / Calcineurin activates NFAT / Regulation of MECP2 expression and activity / DARPP-32 events / Smooth Muscle Contraction / potassium channel activity / detection of calcium ion / immune system process / regulation of cardiac muscle contraction / catalytic complex / RHO GTPases activate IQGAPs / calcium channel inhibitor activity / presynaptic cytosol / cellular response to interferon-beta / Activation of AMPK downstream of NMDARs / Ion homeostasis / regulation of release of sequestered calcium ion into cytosol by sarcoplasmic reticulum / eNOS activation / Protein methylation / Tetrahydrobiopterin (BH4) synthesis, recycling, salvage and regulation / titin binding / regulation of calcium-mediated signaling / regulation of cardiac muscle contraction by regulation of the release of sequestered calcium ion / voltage-gated potassium channel complex / FCERI mediated Ca+2 mobilization / potassium ion transmembrane transport / calcium channel complex / substantia nigra development / FCGR3A-mediated IL10 synthesis / regulation of heart rate / establishment of localization in cell / Antigen activates B Cell Receptor (BCR) leading to generation of second messengers / Ras activation upon Ca2+ influx through NMDA receptor / calyx of Held / adenylate cyclase activator activity / VEGFR2 mediated cell proliferation / positive regulation of protein secretion / regulation of cytokinesis / VEGFR2 mediated vascular permeability / protein serine/threonine kinase activator activity / spindle microtubule / sarcomere / positive regulation of receptor signaling pathway via JAK-STAT / Translocation of SLC2A4 (GLUT4) to the plasma membrane / calcium channel regulator activity / potassium ion transport / Transcriptional activation of mitochondrial biogenesis / defense response / RAF activation / response to calcium ion / cellular response to type II interferon / G2/M transition of mitotic cell cycle / Stimuli-sensing channels / ruffle membrane / spindle pole 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 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 : 3.38 Å 詳細 データ登録者Nam YW / Ramanishka A / Zhang M 資金援助 米国, 4件 詳細 詳細を隠すOrganization Grant number 国 American Heart Association 23AIREA1039423 米国 American Heart Association 24CDA1260237 米国 National Institutes of Health/National Institute of Neurological Disorders and Stroke (NIH/NINDS) 4R33 NS101182-03 米国 National Institutes of Health/National Institute of Neurological Disorders and Stroke (NIH/NINDS) R15 NS130420-01A1 米国
引用ジャーナル : To Be Published タイトル : Structural basis for the subtype-selective activation of KCa3.1 channels.著者 : Nam YW / Ramanishka A / Zhang M 履歴 登録 2025年12月20日 - ヘッダ(付随情報) 公開 2026年1月14日 - マップ公開 2026年1月14日 - 更新 2026年1月14日 - 現状 2026年1月14日 処理サイト : RCSB / 状態 : 公開
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