登録情報 データベース : PDB / ID : 5k7l 構造の表示 ダウンロードとリンクタイトル Single particle cryo-EM structure of the voltage-gated K+ channel Eag1 bound to the channel inhibitor calmodulin 要素Calmodulin Potassium voltage-gated channel subfamily H member 1 詳細キーワード METAL TRANSPORT/CALCIUM BINDING PROTEIN / Voltage-gated potassium channel / calmodulin / Cryoelectron microscopy / Eag1 / METAL TRANSPORT-CALCIUM BINDING PROTEIN 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
Voltage gated Potassium channels / potassium channel complex / regulation of presynaptic cytosolic calcium ion concentration / : / : / positive regulation of cyclic-nucleotide phosphodiesterase activity / : / establishment of protein localization to mitochondrial membrane / delayed rectifier potassium channel activity / type 3 metabotropic glutamate receptor binding ... Voltage gated Potassium channels / potassium channel complex / regulation of presynaptic cytosolic calcium ion concentration / : / : / positive regulation of cyclic-nucleotide phosphodiesterase activity / : / establishment of protein localization to mitochondrial membrane / delayed rectifier potassium channel activity / type 3 metabotropic glutamate receptor binding / voltage-gated monoatomic ion channel activity involved in regulation of presynaptic membrane potential / CaM pathway / nuclear inner membrane / Cam-PDE 1 activation / Sodium/Calcium exchangers / 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 / PKA activation / negative regulation of high voltage-gated calcium channel activity / CaMK IV-mediated phosphorylation of CREB / Glycogen breakdown (glycogenolysis) / nitric-oxide synthase binding / response to corticosterone / positive regulation of DNA binding / organelle localization by membrane tethering / negative regulation of calcium ion export across plasma membrane / phosphatidylinositol bisphosphate binding / CLEC7A (Dectin-1) induces NFAT activation / Activation of RAC1 downstream of NMDARs / regulation of synaptic vesicle exocytosis / mitochondrion-endoplasmic reticulum membrane tethering / autophagosome membrane docking / presynaptic endocytosis / regulation of cardiac muscle cell action potential / negative regulation of peptidyl-threonine phosphorylation / calcineurin-mediated signaling / positive regulation of ryanodine-sensitive calcium-release channel activity / parallel fiber to Purkinje cell synapse / regulation of cell communication by electrical coupling involved in cardiac conduction / Synthesis of IP3 and IP4 in the cytosol / negative regulation of ryanodine-sensitive calcium-release channel activity / Phase 0 - rapid depolarisation / startle response / Negative regulation of NMDA receptor-mediated neuronal transmission / Unblocking of NMDA receptors, glutamate binding and activation / regulation of synaptic vesicle endocytosis / RHO GTPases activate PAKs / Ion transport by P-type ATPases / Uptake and function of anthrax toxins / protein phosphatase activator activity / adenylate cyclase binding / Long-term potentiation / Regulation of MECP2 expression and activity / Calcineurin activates NFAT / regulation of ryanodine-sensitive calcium-release channel activity / DARPP-32 events / axolemma / catalytic complex / Smooth Muscle Contraction / regulation of cardiac muscle contraction / detection of calcium ion / RHO GTPases activate IQGAPs / phosphatidylinositol 3-kinase binding / calcium channel inhibitor activity / regulation of cardiac muscle contraction by regulation of the release of sequestered calcium ion / presynaptic cytosol / cellular response to interferon-beta / Protein methylation / Activation of AMPK downstream of NMDARs / activation of adenylate cyclase activity / positive regulation of protein autophosphorylation / regulation of release of sequestered calcium ion into cytosol by sarcoplasmic reticulum / Ion homeostasis / eNOS activation / enzyme regulator activity / regulation of calcium-mediated signaling / titin binding / Tetrahydrobiopterin (BH4) synthesis, recycling, salvage and regulation / voltage-gated potassium channel complex / sperm midpiece / 14-3-3 protein binding / calcium channel complex / potassium ion transmembrane transport / substantia nigra development / positive regulation of peptidyl-threonine phosphorylation / calyx of Held / nitric-oxide synthase regulator activity / response to amphetamine / FCERI mediated Ca+2 mobilization / adenylate cyclase activator activity / cellular response to calcium ion / Ras activation upon Ca2+ influx through NMDA receptor / FCGR3A-mediated IL10 synthesis / regulation of heart rate / sarcomere / positive regulation of nitric-oxide synthase activity 類似検索 - 分子機能 Potassium channel, voltage-dependent, EAG / : / Potassium channel, voltage-dependent, EAG/ELK/ERG / PAS domain / PAS-associated, C-terminal / PAC domain profile. / PAC motif / Motif C-terminal to PAS motifs (likely to contribute to PAS structural domain) / Cyclic nucleotide-monophosphate binding domain / Cyclic nucleotide-binding domain ... Potassium channel, voltage-dependent, EAG / : / Potassium channel, voltage-dependent, EAG/ELK/ERG / PAS domain / PAS-associated, C-terminal / PAC domain profile. / PAC motif / Motif C-terminal to PAS motifs (likely to contribute to PAS structural domain) / Cyclic nucleotide-monophosphate binding domain / Cyclic nucleotide-binding domain / cAMP/cGMP binding motif profile. / Cyclic nucleotide-binding domain / Cyclic nucleotide-binding domain superfamily / Jelly Rolls / : / PAS repeat profile. / PAS domain / RmlC-like jelly roll fold / PAS domain superfamily / 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 / Ion transport domain / Ion transport protein / EF-hand domain pair / Jelly Rolls / Sandwich / Mainly Beta 類似検索 - ドメイン・相同性 CHOLESTEROL HEMISUCCINATE / Calmodulin-1 / Calmodulin-3 / Voltage-gated delayed rectifier potassium channel KCNH1 類似検索 - 構成要素生物種 Rattus norvegicus (ドブネズミ)Homo sapiens (ヒト)手法 電子顕微鏡法 / 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度 : 3.78 Å 詳細データ登録者 Whicher, J.R. / MacKinnon, R. 資金援助 米国, 3件 詳細 詳細を隠す組織 認可番号 国 National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS) GM43949 米国 Howard Hughes Medical Institute (HHMI) 米国 Damon Runyon Cancer Research Foundation DRG-2212-15 米国
引用ジャーナル : Science / 年 : 2016タイトル : Structure of the voltage-gated K⁺ channel Eag1 reveals an alternative voltage sensing mechanism.著者 : Jonathan R Whicher / Roderick MacKinnon / 要旨 : Voltage-gated potassium (K(v)) channels are gated by the movement of the transmembrane voltage sensor, which is coupled, through the helical S4-S5 linker, to the potassium pore. We determined the ... Voltage-gated potassium (K(v)) channels are gated by the movement of the transmembrane voltage sensor, which is coupled, through the helical S4-S5 linker, to the potassium pore. We determined the single-particle cryo-electron microscopy structure of mammalian K(v)10.1, or Eag1, bound to the channel inhibitor calmodulin, at 3.78 angstrom resolution. Unlike previous K(v) structures, the S4-S5 linker of Eag1 is a five-residue loop and the transmembrane segments are not domain swapped, which suggest an alternative mechanism of voltage-dependent gating. Additionally, the structure and position of the S4-S5 linker allow calmodulin to bind to the intracellular domains and to close the potassium pore, independent of voltage-sensor position. The structure reveals an alternative gating mechanism for K(v) channels and provides a template to further understand the gating properties of Eag1 and related channels. 履歴 登録 2016年5月26日 登録サイト : RCSB / 処理サイト : RCSB改定 1.0 2016年8月17日 Provider : repository / タイプ : Initial release改定 1.1 2016年8月31日 Group : Database references改定 1.2 2017年9月13日 Group : Author supporting evidence / Data collection / Database referencesカテゴリ : citation / em_image_scans ... citation / em_image_scans / em_software / pdbx_audit_support Item : _citation.journal_id_CSD / _em_software.name / _pdbx_audit_support.funding_organization改定 1.3 2019年11月20日 Group : Author supporting evidence / カテゴリ : pdbx_audit_support / Item : _pdbx_audit_support.funding_organization改定 1.4 2020年7月29日 Group : Data collection / Derived calculations / Structure summaryカテゴリ : chem_comp / entity ... chem_comp / entity / pdbx_chem_comp_identifier / pdbx_entity_nonpoly / struct_conn / struct_site / struct_site_gen Item : _chem_comp.name / _chem_comp.type ... _chem_comp.name / _chem_comp.type / _entity.pdbx_description / _pdbx_entity_nonpoly.name / _struct_conn.pdbx_role 解説 : Carbohydrate remediation / Provider : repository / タイプ : Remediation改定 1.5 2024年10月23日 Group : Data collection / Database references ... Data collection / Database references / Derived calculations / Structure summary カテゴリ : chem_comp / chem_comp_atom ... chem_comp / chem_comp_atom / chem_comp_bond / database_2 / em_admin / pdbx_entry_details / pdbx_modification_feature / pdbx_struct_oper_list Item : _chem_comp.pdbx_synonyms / _database_2.pdbx_DOI ... _chem_comp.pdbx_synonyms / _database_2.pdbx_DOI / _database_2.pdbx_database_accession / _em_admin.last_update / _pdbx_struct_oper_list.name / _pdbx_struct_oper_list.symmetry_operation / _pdbx_struct_oper_list.type
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