+データを開く
-基本情報
登録情報 | データベース: EMDB / ID: EMD-7298 | |||||||||
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タイトル | 4.1 angstrom Mg2+-unbound structure of mouse TRPM7 | |||||||||
マップデータ | ||||||||||
試料 |
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キーワード | CryoEM / Truncated mouse TRPM7 / MEMBRANE PROTEIN | |||||||||
機能・相同性 | 機能・相同性情報 intracellular magnesium ion homeostasis / calcium-dependent cell-matrix adhesion / monoatomic cation homeostasis / varicosity / TRP channels / actomyosin structure organization / myosin binding / monoatomic cation transmembrane transport / necroptotic process / monoatomic cation channel activity ...intracellular magnesium ion homeostasis / calcium-dependent cell-matrix adhesion / monoatomic cation homeostasis / varicosity / TRP channels / actomyosin structure organization / myosin binding / monoatomic cation transmembrane transport / necroptotic process / monoatomic cation channel activity / ruffle / protein tetramerization / calcium channel activity / memory / synaptic vesicle membrane / calcium ion transport / kinase activity / actin binding / non-specific serine/threonine protein kinase / protein kinase activity / positive regulation of apoptotic process / protein serine kinase activity / protein serine/threonine kinase activity / neuronal cell body / ATP binding / metal ion binding / plasma membrane 類似検索 - 分子機能 | |||||||||
生物種 | Mus musculus (ハツカネズミ) | |||||||||
手法 | 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 4.1 Å | |||||||||
データ登録者 | Zhang J / Li Z | |||||||||
引用 | ジャーナル: Proc Natl Acad Sci U S A / 年: 2018 タイトル: Structure of the mammalian TRPM7, a magnesium channel required during embryonic development. 著者: Jingjing Duan / Zongli Li / Jian Li / Raymond E Hulse / Ana Santa-Cruz / William C Valinsky / Sunday A Abiria / Grigory Krapivinsky / Jin Zhang / David E Clapham / 要旨: The transient receptor potential ion channel subfamily M, member 7 (TRPM7), is a ubiquitously expressed protein that is required for mouse embryonic development. TRPM7 contains both an ion channel ...The transient receptor potential ion channel subfamily M, member 7 (TRPM7), is a ubiquitously expressed protein that is required for mouse embryonic development. TRPM7 contains both an ion channel and an α-kinase. The channel domain comprises a nonselective cation channel with notable permeability to Mg and Zn Here, we report the closed state structures of the mouse TRPM7 channel domain in three different ionic conditions to overall resolutions of 3.3, 3.7, and 4.1 Å. The structures reveal key residues for an ion binding site in the selectivity filter, with proposed partially hydrated Mg ions occupying the center of the conduction pore. In high [Mg], a prominent external disulfide bond is found in the pore helix, which is essential for ion channel function. Our results provide a structural framework for understanding the TRPM1/3/6/7 subfamily and extend the knowledge base upon which to study the diversity and evolution of TRP channels. | |||||||||
履歴 |
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-構造の表示
ムービー |
ムービービューア |
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構造ビューア | EMマップ: SurfViewMolmilJmol/JSmol |
添付画像 |
-ダウンロードとリンク
-EMDBアーカイブ
マップデータ | emd_7298.map.gz | 5.7 MB | EMDBマップデータ形式 | |
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ヘッダ (付随情報) | emd-7298-v30.xml emd-7298.xml | 10.1 KB 10.1 KB | 表示 表示 | EMDBヘッダ |
画像 | emd_7298.png | 169.8 KB | ||
Filedesc metadata | emd-7298.cif.gz | 5.3 KB | ||
アーカイブディレクトリ | http://ftp.pdbj.org/pub/emdb/structures/EMD-7298 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-7298 | HTTPS FTP |
-検証レポート
文書・要旨 | emd_7298_validation.pdf.gz | 388.6 KB | 表示 | EMDB検証レポート |
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文書・詳細版 | emd_7298_full_validation.pdf.gz | 388.1 KB | 表示 | |
XML形式データ | emd_7298_validation.xml.gz | 6.1 KB | 表示 | |
CIF形式データ | emd_7298_validation.cif.gz | 6.9 KB | 表示 | |
アーカイブディレクトリ | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-7298 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-7298 | HTTPS FTP |
-関連構造データ
-リンク
EMDBのページ | EMDB (EBI/PDBe) / EMDataResource |
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-マップ
ファイル | ダウンロード / ファイル: emd_7298.map.gz / 形式: CCP4 / 大きさ: 64 MB / タイプ: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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投影像・断面図 | 画像のコントロール
画像は Spider により作成 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
ボクセルのサイズ | X=Y=Z: 1.23 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
密度 |
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対称性 | 空間群: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
詳細 | EMDB XML:
CCP4マップ ヘッダ情報:
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-添付データ
-試料の構成要素
-全体 : Membrane Protein, Transient Receptor Potential ion channel
全体 | 名称: Membrane Protein, Transient Receptor Potential ion channel |
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要素 |
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-超分子 #1: Membrane Protein, Transient Receptor Potential ion channel
超分子 | 名称: Membrane Protein, Transient Receptor Potential ion channel タイプ: cell / ID: 1 / 親要素: 0 / 含まれる分子: all |
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由来(天然) | 生物種: Mus musculus (ハツカネズミ) |
-分子 #1: TRPM7
分子 | 名称: TRPM7 / タイプ: protein_or_peptide / ID: 1 / コピー数: 4 / 光学異性体: LEVO |
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由来(天然) | 生物種: Mus musculus (ハツカネズミ) |
分子量 | 理論値: 107.475609 KDa |
組換発現 | 生物種: Spodoptera frugiperda (ツマジロクサヨトウ) |
配列 | 文字列: (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK) ...文字列: (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)KFL TIPRLEELYN TKQGPTNPML FHLIRDVKQG NLPPGYK IT LIDIGLVIEY LMGGTYRCTY TRKRFRLIYN SLGGNNRRSG RNTSSSTPQL RKSHETFGNR ADKKEKMRHN HFIKTAQP Y RPKMDASMEE GKKKRTKDEI VDIDDPETKR FPYPLNELLI WACLMKRQVM ARFLWQHGEE SMAKALVACK IYRSMAYEA KQSDLVDDTS EELKQYSNDF GQLAVELLEQ SFRQDETMAM KLLTYELKNW SNSTCLKLAV SSRLRPFVAH TCTQMLLSDM WMGRLNMRK NSWYKVILSI LVPPAILMLE YKTKAEMSHI PQSQDAHQMT MEDSENNFHN ITEEIPMEVF KEVKILDSSD G KNEMEIHI KSKKLPITRK FYAFYHAPIV KFWFNTLAYL GFLMLYTFVV LVKMEQLPSV QEWIVIAYIF TYAIEKVREV FM SEAGKIS QKIKVWFSDY FNVSDTIAII SFFVGFGLRF GAKWNYINAY DNHVFVAGRL IYCLNIIFWY VRLLDFLAVN QQA GPYVMM IGKMVANMFY IVVIMALVLL SFGVPRKAIL YPHEEPSWSL AKDIVFHPYW MIFGEVYAYE IDVCANDSTL PTIC GPGTW LTPFLQAVYL FVQYIIMVNL LIAFFNNVYL QVKAISNIVW KYQRYHFIMA YHEKPVLPPP LIILSHIVSL FCCVC KRRK KDKTSDGPKL FLTEEDQKKL HDFEEQCVEM YFDEKDDKFN SGSEERIRVT FERVEQMSIQ IKEVGDRVNY IKRSLQ SLD SQIGHLQDLS ALTVDTLKTL TAQKASEASK VHNEITRELS ISKHLAQNLI DDVPVRPLWK KPSAVNTLSS S |
-実験情報
-構造解析
手法 | クライオ電子顕微鏡法 |
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解析 | 単粒子再構成法 |
試料の集合状態 | particle |
-試料調製
緩衝液 | pH: 7.5 |
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凍結 | 凍結剤: ETHANE / 装置: FEI VITROBOT MARK I |
-電子顕微鏡法
顕微鏡 | FEI POLARA 300 |
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撮影 | フィルム・検出器のモデル: GATAN K2 BASE (4k x 4k) 平均電子線量: 56.0 e/Å2 |
電子線 | 加速電圧: 300 kV / 電子線源: FIELD EMISSION GUN |
電子光学系 | 照射モード: FLOOD BEAM / 撮影モード: BRIGHT FIELD |
実験機器 | モデル: Tecnai Polara / 画像提供: FEI Company |
-画像解析
初期モデル | モデルのタイプ: EMDB MAP |
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最終 再構成 | 解像度のタイプ: BY AUTHOR / 解像度: 4.1 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 使用した粒子像数: 206032 |
初期 角度割当 | タイプ: PROJECTION MATCHING |
最終 角度割当 | タイプ: RANDOM ASSIGNMENT |