登録情報 データベース : PDB / ID : 7vlr 構造の表示 ダウンロードとリンクタイトル Structure of SUR2B in complex with Mg-ATP/ADP 要素Isoform SUR2B of ATP-binding cassette sub-family C member 9 詳細 キーワード MEMBRANE PROTEIN / SUR2B / ABC transporter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
vascular process in circulatory system / substrate-dependent cell migration, cell contraction / reactive oxygen species biosynthetic process / oxygen metabolic process / ATP sensitive Potassium channels / response to decreased oxygen levels / potassium channel activator activity / ABC-family proteins mediated transport / response to peptide / inward rectifying potassium channel ... vascular process in circulatory system / substrate-dependent cell migration, cell contraction / reactive oxygen species biosynthetic process / oxygen metabolic process / ATP sensitive Potassium channels / response to decreased oxygen levels / potassium channel activator activity / ABC-family proteins mediated transport / response to peptide / inward rectifying potassium channel / sulfonylurea receptor activity / response to potassium ion / circulatory system development / cardiac conduction / response to oxygen levels / cellular response to potassium ion / response to hydrogen sulfide / cellular respiration / cellular response to chemical stress / ATPase-coupled monoatomic cation transmembrane transporter activity / coronary vasculature development / cardiac muscle cell contraction / regulation of potassium ion transmembrane transport / syntaxin binding / inorganic cation transmembrane transport / blood circulation / Ion homeostasis / cellular response to ATP / response to ATP / heterocyclic compound binding / response to stress / blood vessel development / potassium ion import across plasma membrane / fatty acid oxidation / monoatomic cation transmembrane transport / potassium channel activity / action potential / ATPase-coupled transmembrane transporter activity / ABC-type transporter activity / potassium channel regulator activity / ATP metabolic process / heart morphogenesis / skeletal muscle tissue development / negative regulation of blood pressure / T-tubule / potassium ion transmembrane transport / cellular response to calcium ion / sarcomere / blood vessel diameter maintenance / acrosomal vesicle / regulation of membrane potential / response to activity / mitochondrion organization / potassium ion transport / sarcolemma / response to hydrogen peroxide / regulation of blood pressure / transmembrane transport / response to estrogen / vasodilation / MAPK cascade / cellular response to xenobiotic stimulus / heart development / fibroblast proliferation / gene expression / defense response to virus / transmembrane transporter binding / response to hypoxia / response to xenobiotic stimulus / regulation of transcription by RNA polymerase II / protein-containing complex binding / negative regulation of apoptotic process / protein-containing complex / ATP hydrolysis activity / mitochondrion / ATP binding / identical protein binding / membrane / plasma membrane / cytoplasm 類似検索 - 分子機能 ATP-binding cassette subfamily C member 9 / : / Sulphonylurea receptor / : / ABC transporter transmembrane region / ABC transporter type 1, transmembrane domain / ABC transporter integral membrane type-1 fused domain profile. / ABC transporter type 1, transmembrane domain superfamily / ABC transporter-like, conserved site / ABC transporters family signature. ... ATP-binding cassette subfamily C member 9 / : / Sulphonylurea receptor / : / ABC transporter transmembrane region / ABC transporter type 1, transmembrane domain / ABC transporter integral membrane type-1 fused domain profile. / ABC transporter type 1, transmembrane domain superfamily / ABC transporter-like, conserved site / ABC transporters family signature. / ABC transporter / ABC transporter-like, ATP-binding domain / ATP-binding cassette, ABC transporter-type domain profile. / ATPases associated with a variety of cellular activities / AAA+ ATPase domain / P-loop containing nucleoside triphosphate hydrolase 類似検索 - ドメイン・相同性 ADENOSINE-5'-DIPHOSPHATE / ADENOSINE-5'-TRIPHOSPHATE / CHOLESTEROL HEMISUCCINATE / ATP-binding cassette sub-family C member 9 類似検索 - 構成要素生物種 Rattus norvegicus (ドブネズミ)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 : 3.4 Å 詳細データ登録者 Chen, L. / Ding, D. 資金援助 中国, 3件 詳細 詳細を隠す組織 認可番号 国 National Natural Science Foundation of China (NSFC) 91957201 中国 National Natural Science Foundation of China (NSFC) 31870833 中国 National Natural Science Foundation of China (NSFC) 31821091 中国
引用ジャーナル : Nat Commun / 年 : 2022タイトル : Structural identification of vasodilator binding sites on the SUR2 subunit.著者 : Dian Ding / Jing-Xiang Wu / Xinli Duan / Songling Ma / Lipeng Lai / Lei Chen / 要旨 : ATP-sensitive potassium channels (K), composed of Kir6 and SUR subunits, convert the metabolic status of the cell into electrical signals. Pharmacological activation of SUR2- containing K channels by ... ATP-sensitive potassium channels (K), composed of Kir6 and SUR subunits, convert the metabolic status of the cell into electrical signals. Pharmacological activation of SUR2- containing K channels by class of small molecule drugs known as K openers leads to hyperpolarization of excitable cells and to vasodilation. Thus, K openers could be used to treat cardiovascular diseases. However, where these vasodilators bind to K and how they activate the channel remains elusive. Here, we present cryo-EM structures of SUR2A and SUR2B subunits in complex with Mg-nucleotides and P1075 or levcromakalim, two chemically distinct K openers that are specific to SUR2. Both P1075 and levcromakalim bind to a common site in the transmembrane domain (TMD) of the SUR2 subunit, which is between TMD1 and TMD2 and is embraced by TM10, TM11, TM12, TM14, and TM17. These K openers synergize with Mg-nucleotides to stabilize SUR2 in the NBD-dimerized occluded state to activate the channel. 履歴 登録 2021年10月5日 登録サイト : PDBJ / 処理サイト : PDBJ改定 1.0 2022年5月18日 Provider : repository / タイプ : Initial release改定 1.1 2022年12月14日 Group : Data collection / Database references / カテゴリ : citation / citation_author / em_imagingItem : _citation.country / _citation.journal_abbrev ... _citation.country / _citation.journal_abbrev / _citation.journal_id_CSD / _citation.journal_id_ISSN / _citation.journal_volume / _citation.page_first / _citation.page_last / _citation.pdbx_database_id_DOI / _citation.pdbx_database_id_PubMed / _citation.title / _citation.year / _em_imaging.nominal_defocus_max / _em_imaging.nominal_defocus_min 改定 1.2 2024年6月19日 Group : Data collection / カテゴリ : chem_comp_atom / chem_comp_bond
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