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データを開く
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基本情報
| 登録情報 | ![]() | ||||||||||||||||||||||||||||||
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| タイトル | Cryo-EM structure of human TRPM4 channel in complex with calcium and NBA at 37 degrees Celsius (monomeric TMD-focused map with best-resolved NBA density) | ||||||||||||||||||||||||||||||
マップデータ | |||||||||||||||||||||||||||||||
試料 |
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キーワード | ion channel / TRP channel / MEMBRANE PROTEIN | ||||||||||||||||||||||||||||||
| 機能・相同性 | 機能・相同性情報positive regulation of atrial cardiac muscle cell action potential / positive regulation of regulation of vascular associated smooth muscle cell membrane depolarization / sodium channel complex / regulation of T cell cytokine production / negative regulation of bone mineralization / membrane depolarization during AV node cell action potential / membrane depolarization during bundle of His cell action potential / membrane depolarization during Purkinje myocyte cell action potential / regulation of ventricular cardiac muscle cell action potential / metal ion transport ...positive regulation of atrial cardiac muscle cell action potential / positive regulation of regulation of vascular associated smooth muscle cell membrane depolarization / sodium channel complex / regulation of T cell cytokine production / negative regulation of bone mineralization / membrane depolarization during AV node cell action potential / membrane depolarization during bundle of His cell action potential / membrane depolarization during Purkinje myocyte cell action potential / regulation of ventricular cardiac muscle cell action potential / metal ion transport / calcium-activated cation channel activity / sodium ion import across plasma membrane / dendritic cell chemotaxis / sodium channel activity / TRP channels / cellular response to ATP / regulation of heart rate by cardiac conduction / positive regulation of fat cell differentiation / monoatomic cation transmembrane transport / protein sumoylation / positive regulation of vasoconstriction / negative regulation of osteoblast differentiation / positive regulation of heart rate / positive regulation of adipose tissue development / positive regulation of insulin secretion involved in cellular response to glucose stimulus / calcium-mediated signaling / transmembrane transport / calcium channel activity / calcium ion transmembrane transport / positive regulation of canonical Wnt signaling pathway / Sensory perception of sweet, bitter, and umami (glutamate) taste / positive regulation of cytosolic calcium ion concentration / protein homotetramerization / neuronal cell body / calcium ion binding / positive regulation of cell population proliferation / Golgi apparatus / endoplasmic reticulum / ATP binding / membrane / identical protein binding / plasma membrane 類似検索 - 分子機能 | ||||||||||||||||||||||||||||||
| 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: 2.9 Å | ||||||||||||||||||||||||||||||
データ登録者 | Jinhong H / Wei L / Juan D | ||||||||||||||||||||||||||||||
| 資金援助 | 米国, 9件
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引用 | ジャーナル: Nat Struct Mol Biol / 年: 2026タイトル: Temperature and intrinsic Ca reshape TRPM4 pharmacology. 著者: Jinhong Hu / Sofia Ievleva / Sung Jin Park / Junuk Lee / Jie Cheng / Garrett O'Dea / Jiangnan Sheng / Juan Du / Wei Lü / ![]() 要旨: Proteins operate in dynamic environments where ions, lipids and temperature collectively define their properties, yet most studies rely on simplified conditions that overlook these intrinsic ...Proteins operate in dynamic environments where ions, lipids and temperature collectively define their properties, yet most studies rely on simplified conditions that overlook these intrinsic variables. Here we show two such factors-temperature and Ca-remodel the function and pharmacology of TRPM4, an ion channel implicated in cardiac conduction, immune regulation, cancer and intestinal-fluid homeostasis. At physiological temperature and Ca, TPPO-previously considered a selective TRPM5 inhibitor inactive toward TRPM4-potently activates TRPM4, revealing strong synergy among temperature, Ca and ligand binding. By contrast, Necrocide-1, a necroptotic activator targeting the same binding pocket, defies this logic: it opens TRPM4 without Ca but is antagonized by Ca. Meanwhile, the inhibitors NBA and CBA engage a nearby pocket, locking the channel in a non-conductive pre-open state. Our findings highlight that even rigid binding pockets can exhibit temperature-dependent ligand recognition, revealing hidden pharmacology and informing selective, environment-aware therapeutic strategies. | ||||||||||||||||||||||||||||||
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構造の表示
| 添付画像 |
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ダウンロードとリンク
-EMDBアーカイブ
| マップデータ | emd_73764.map.gz | 20.6 MB | EMDBマップデータ形式 | |
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| ヘッダ (付随情報) | emd-73764-v30.xml emd-73764.xml | 26.1 KB 26.1 KB | 表示 表示 | EMDBヘッダ |
| 画像 | emd_73764.png | 79.9 KB | ||
| Filedesc metadata | emd-73764.cif.gz | 7.3 KB | ||
| その他 | emd_73764_additional_1.map.gz emd_73764_half_map_1.map.gz emd_73764_half_map_2.map.gz | 1.9 MB 17 MB 17 MB | ||
| アーカイブディレクトリ | https://data.pdbj.org/pub/emdb/structures/EMD-73764 ftp://data.pdbj.org/pub/emdb/structures/EMD-73764 | HTTPS FTP |
-関連構造データ
| 関連構造データ | ![]() 9z26MC ![]() 9z1wC ![]() 9z1xC ![]() 9z1yC ![]() 9z1zC ![]() 9z20C ![]() 9z21C ![]() 9z22C ![]() 9z23C ![]() 9z24C ![]() 9z25C ![]() 9z27C M: このマップから作成された原子モデル C: 同じ文献を引用 ( |
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| 類似構造データ | 類似検索 - 機能・相同性 F&H 検索 |
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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_73764.map.gz / 形式: CCP4 / 大きさ: 216 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: 0.87 Å | ||||||||||||||||||||||||||||||||||||
| 密度 |
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| 対称性 | 空間群: 1 | ||||||||||||||||||||||||||||||||||||
| 詳細 | EMDB XML:
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-添付データ
-追加マップ: sharpened map
| ファイル | emd_73764_additional_1.map | ||||||||||||
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| 注釈 | sharpened map | ||||||||||||
| 投影像・断面図 |
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| 密度ヒストグラム |
-ハーフマップ: #2
| ファイル | emd_73764_half_map_1.map | ||||||||||||
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| 投影像・断面図 |
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| 密度ヒストグラム |
-ハーフマップ: #1
| ファイル | emd_73764_half_map_2.map | ||||||||||||
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| 投影像・断面図 |
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| 密度ヒストグラム |
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試料の構成要素
-全体 : human TRPM4 channel in complex with calcium and NBA at 37 degrees...
| 全体 | 名称: human TRPM4 channel in complex with calcium and NBA at 37 degrees Celsius |
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| 要素 |
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-超分子 #1: human TRPM4 channel in complex with calcium and NBA at 37 degrees...
| 超分子 | 名称: human TRPM4 channel in complex with calcium and NBA at 37 degrees Celsius タイプ: complex / ID: 1 / 親要素: 0 / 含まれる分子: #1 |
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| 由来(天然) | 生物種: Homo sapiens (ヒト) |
-分子 #1: Transient receptor potential cation channel subfamily M member 4
| 分子 | 名称: Transient receptor potential cation channel subfamily M member 4 タイプ: protein_or_peptide / ID: 1 / コピー数: 1 / 光学異性体: LEVO |
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| 由来(天然) | 生物種: Homo sapiens (ヒト) |
| 分子量 | 理論値: 134.456484 KDa |
| 組換発現 | 生物種: Homo sapiens (ヒト) |
| 配列 | 文字列: MVVPEKEQSW IPKIFKKKTC TTFIVDSTDP GGTLCQCGRP RTAHPAVAME DAFGAAVVTV WDSDAHTTEK PTDAYGELDF TGAGRKHSN FLRLSDRTDP AAVYSLVTRT WGFRAPNLVV SVLGGSGGPV LQTWLQDLLR RGLVRAAQST GAWIVTGGLH T GIGRHVGV ...文字列: MVVPEKEQSW IPKIFKKKTC TTFIVDSTDP GGTLCQCGRP RTAHPAVAME DAFGAAVVTV WDSDAHTTEK PTDAYGELDF TGAGRKHSN FLRLSDRTDP AAVYSLVTRT WGFRAPNLVV SVLGGSGGPV LQTWLQDLLR RGLVRAAQST GAWIVTGGLH T GIGRHVGV AVRDHQMAST GGTKVVAMGV APWGVVRNRD TLINPKGSFP ARYRWRGDPE DGVQFPLDYN YSAFFLVDDG TH GCLGGEN RFRLRLESYI SQQKTGVGGT GIDIPVLLLL IDGDEKMLTR IENATQAQLP CLLVAGSGGA ADCLAETLED TLA PGSGGA RQGEARDRIR RFFPKGDLEV LQAQVERIMT RKELLTVYSS EDGSEEFETI VLKALVKACG SSEASAYLDE LRLA VAWNR VDIAQSELFR GDIQWRSFHL EASLMDALLN DRPEFVRLLI SHGLSLGHFL TPMRLAQLYS AAPSNSLIRN LLDQA SHSA GTKAPALKGG AAELRPPDVG HVLRMLLGKM CAPRYPSGGA WDPHPGQGFG ESMYLLSDKA TSPLSLDAGL GQAPWS DLL LWALLLNRAQ MAMYFWEMGS NAVSSALGAC LLLRVMARLE PDAEEAARRK DLAFKFEGMG VDLFGECYRS SEVRAAR LL LRRCPLWGDA TCLQLAMQAD ARAFFAQDGV QSLLTQKWWG DMASTTPIWA LVLAFFCPPL IYTRLITFRK SEEEPTRE E LEFDMDSVIN GEGPVGTADP AEKTPLGVPR QSGRPGCCGG RCGGRRCLRR WFHFWGAPVT IFMGNVVSYL LFLLLFSRV LLVDFQPAPP GSLELLLYFW AFTLLCEELR QGLSGGGGSL ASGGPGPGHA SLSQRLRLYL ADSWNQCDLV ALTCFLLGVG CRLTPGLYH LGRTVLCIDF MVFTVRLLHI FTVNKQLGPK IVIVSKMMKD VFFFLFFLGV WLVAYGVATE GLLRPRDSDF P SILRRVFY RPYLQIFGQI PQEDMDVALM EHSNCSSEPG FWAHPPGAQA GTCVSQYANW LVVLLLVIFL LVANILLVNL LI AMFSYTF GKVQGNSDLY WKAQRYRLIR EFHSRPALAP PFIVISHLRL LLRQLCRRPR SPQPSSPALE HFRVYLSKEA ERK LLTWES VHKENFLLAR ARDKRESDSE RLKRTSQKVD LALKQLGHIR EYEQRLKVLE REVQQCSRVL GWVAEALSRS ALLP PGGPP PPDLPGSKD UniProtKB: Transient receptor potential cation channel subfamily M member 4 |
-分子 #2: CALCIUM ION
| 分子 | 名称: CALCIUM ION / タイプ: ligand / ID: 2 / コピー数: 1 / 式: CA |
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| 分子量 | 理論値: 40.078 Da |
-分子 #3: 4-chloranyl-2-(2-naphthalen-1-yloxyethanoylamino)benzoic acid
| 分子 | 名称: 4-chloranyl-2-(2-naphthalen-1-yloxyethanoylamino)benzoic acid タイプ: ligand / ID: 3 / コピー数: 1 / 式: A1H0C |
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| 分子量 | 理論値: 355.772 Da |
-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 |
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試料調製
| 緩衝液 | pH: 7 |
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| 凍結 | 凍結剤: ETHANE |
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電子顕微鏡法
| 顕微鏡 | TFS GLACIOS |
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| 撮影 | フィルム・検出器のモデル: FEI FALCON IV (4k x 4k) 平均電子線量: 40.0 e/Å2 |
| 電子線 | 加速電圧: 200 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 最大 デフォーカス(公称値): 1.4000000000000001 µm 最小 デフォーカス(公称値): 0.5 µm |
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万見について




キーワード
Homo sapiens (ヒト)
データ登録者
米国, 9件
引用






















Z (Sec.)
Y (Row.)
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解析
FIELD EMISSION GUN