+データを開く
-基本情報
登録情報 | データベース: EMDB / ID: EMD-9243 | |||||||||||||||||||||
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タイトル | Structure of full-length IP3R1 channel bound with Adenophostin A (composite) | |||||||||||||||||||||
マップデータ | cryo-EM density map (composite) of IP3R1 in ligand-bound state | |||||||||||||||||||||
試料 |
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機能・相同性 | 機能・相同性情報 Effects of PIP2 hydrolysis / Antigen activates B Cell Receptor (BCR) leading to generation of second messengers / inositol 1,4,5-trisphosphate receptor activity involved in regulation of postsynaptic cytosolic calcium levels / release of sequestered calcium ion into cytosol by endoplasmic reticulum / cGMP effects / smooth endoplasmic reticulum membrane / Elevation of cytosolic Ca2+ levels / platelet dense tubular network / calcineurin complex / platelet dense granule membrane ...Effects of PIP2 hydrolysis / Antigen activates B Cell Receptor (BCR) leading to generation of second messengers / inositol 1,4,5-trisphosphate receptor activity involved in regulation of postsynaptic cytosolic calcium levels / release of sequestered calcium ion into cytosol by endoplasmic reticulum / cGMP effects / smooth endoplasmic reticulum membrane / Elevation of cytosolic Ca2+ levels / platelet dense tubular network / calcineurin complex / platelet dense granule membrane / epithelial fluid transport / ion channel modulating, G protein-coupled receptor signaling pathway / phospholipase C-activating G protein-coupled acetylcholine receptor signaling pathway / inositol 1,4,5-trisphosphate-gated calcium channel activity / calcium import into the mitochondrion / voluntary musculoskeletal movement / inositol 1,4,5 trisphosphate binding / endoplasmic reticulum calcium ion homeostasis / positive regulation of calcium ion transport / negative regulation of calcium-mediated signaling / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / positive regulation of hepatocyte proliferation / nuclear inner membrane / Ion homeostasis / transport vesicle membrane / dendrite development / ligand-gated ion channel signaling pathway / intracellularly gated calcium channel activity / intrinsic apoptotic signaling pathway in response to endoplasmic reticulum stress / single fertilization / calcium channel inhibitor activity / GABA-ergic synapse / cellular response to cAMP / release of sequestered calcium ion into cytosol / regulation of cytosolic calcium ion concentration / post-embryonic development / phosphatidylinositol binding / secretory granule membrane / sarcoplasmic reticulum / synaptic membrane / liver regeneration / cell morphogenesis / positive regulation of insulin secretion / Schaffer collateral - CA1 synapse / positive regulation of neuron projection development / calcium ion transport / nuclear envelope / presynapse / phospholipase C-activating G protein-coupled receptor signaling pathway / positive regulation of cytosolic calcium ion concentration / cellular response to hypoxia / protein phosphatase binding / protein homotetramerization / postsynapse / transmembrane transporter binding / postsynaptic density / response to hypoxia / positive regulation of apoptotic process / protein domain specific binding / neuronal cell body / dendrite / calcium ion binding / synapse / endoplasmic reticulum membrane / protein-containing complex binding / negative regulation of apoptotic process / nucleolus / perinuclear region of cytoplasm / endoplasmic reticulum / protein-containing complex / ATP binding / identical protein binding / membrane / plasma membrane / cytoplasm 類似検索 - 分子機能 | |||||||||||||||||||||
生物種 | Rattus norvegicus (ドブネズミ) / Rat (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 | Serysheva II / Fan G / Baker MR / Wang Z / Seryshev A / Ludtke SJ / Baker ML | |||||||||||||||||||||
資金援助 | 米国, 6件
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引用 | ジャーナル: Cell Res / 年: 2018 タイトル: Cryo-EM reveals ligand induced allostery underlying InsPR channel gating. 著者: Guizhen Fan / Mariah R Baker / Zhao Wang / Alexander B Seryshev / Steven J Ludtke / Matthew L Baker / Irina I Serysheva / 要旨: Inositol-1,4,5-trisphosphate receptors (InsPRs) are cation channels that mobilize Ca from intracellular stores in response to a wide range of cellular stimuli. The paradigm of InsPR activation is the ...Inositol-1,4,5-trisphosphate receptors (InsPRs) are cation channels that mobilize Ca from intracellular stores in response to a wide range of cellular stimuli. The paradigm of InsPR activation is the coupled interplay between binding of InsP and Ca that switches the ion conduction pathway between closed and open states to enable the passage of Ca through the channel. However, the molecular mechanism of how the receptor senses and decodes ligand-binding signals into gating motion remains unknown. Here, we present the electron cryo-microscopy structure of InsPR1 from rat cerebellum determined to 4.1 Å resolution in the presence of activating concentrations of Ca and adenophostin A (AdA), a structural mimetic of InsP and the most potent known agonist of the channel. Comparison with the 3.9 Å-resolution structure of InsPR1 in the Apo-state, also reported herein, reveals the binding arrangement of AdA in the tetrameric channel assembly and striking ligand-induced conformational rearrangements within cytoplasmic domains coupled to the dilation of a hydrophobic constriction at the gate. Together, our results provide critical insights into the mechanistic principles by which ligand-binding allosterically gates InsPR channel. | |||||||||||||||||||||
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_9243.map.gz | 27.9 MB | EMDBマップデータ形式 | |
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ヘッダ (付随情報) | emd-9243-v30.xml emd-9243.xml | 18.5 KB 18.5 KB | 表示 表示 | EMDBヘッダ |
画像 | emd_9243.png | 228.8 KB | ||
アーカイブディレクトリ | http://ftp.pdbj.org/pub/emdb/structures/EMD-9243 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-9243 | HTTPS FTP |
-検証レポート
文書・要旨 | emd_9243_validation.pdf.gz | 427.9 KB | 表示 | EMDB検証レポート |
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文書・詳細版 | emd_9243_full_validation.pdf.gz | 427.5 KB | 表示 | |
XML形式データ | emd_9243_validation.xml.gz | 5.8 KB | 表示 | |
CIF形式データ | emd_9243_validation.cif.gz | 6.5 KB | 表示 | |
アーカイブディレクトリ | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-9243 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-9243 | 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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「今月の分子」の関連する項目 |
-マップ
ファイル | ダウンロード / ファイル: emd_9243.map.gz / 形式: CCP4 / 大きさ: 30.5 MB / タイプ: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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注釈 | cryo-EM density map (composite) of IP3R1 in ligand-bound state | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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: 1.26 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 : Inositol 1,4,5-trisphosphate receptor
全体 | 名称: Inositol 1,4,5-trisphosphate receptor |
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要素 |
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-超分子 #1: Inositol 1,4,5-trisphosphate receptor
超分子 | 名称: Inositol 1,4,5-trisphosphate receptor / タイプ: complex / ID: 1 / 親要素: 0 / 含まれる分子: #1 / 詳細: tetrameric assembly |
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由来(天然) | 生物種: Rattus norvegicus (ドブネズミ) / 器官: Brain / 組織: Cerebellum / Organelle: endoplasmic reticulum / 細胞中の位置: membrane |
分子量 | 理論値: 1.3 MDa |
-分子 #1: Inositol 1,4,5-trisphosphate receptor type 1
分子 | 名称: Inositol 1,4,5-trisphosphate receptor type 1 / 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: Rat (ネズミ) |
分子量 | 理論値: 312.442 KDa |
配列 | 文字列: MSDKMSSFLH IGDICSLYAE GSTNGFISTL GLVDDRCVVQ PEAGDLNNPP KKFRDCLFKL CPMNRYSAQK QFWKAAKPGA NSTTDAVLL NKLHHAADLE KKQNETENRK LLGTVIQYGN VIQLLHLKSN KYLTVNKRLP ALLEKNAMRV TLDEAGNEGS W FYIQPFYK ...文字列: MSDKMSSFLH IGDICSLYAE GSTNGFISTL GLVDDRCVVQ PEAGDLNNPP KKFRDCLFKL CPMNRYSAQK QFWKAAKPGA NSTTDAVLL NKLHHAADLE KKQNETENRK LLGTVIQYGN VIQLLHLKSN KYLTVNKRLP ALLEKNAMRV TLDEAGNEGS W FYIQPFYK LRSIGDSVVI GDKVVLNPVN AGQPLHASSH QLVDNPGCNE VNSVNCNTSW KIVLFMKWSD NKDDILKGGD VV RLFHAEQ EKFLTCDEHR KKQHVFLRTT GRQSATSATS SKALWEVEVV QHDPCRGGAG YWNSLFRFKH LATGHYLAAE VDP DFEEEC LEFQPSVDPD QDASRSRLRN AQEKMVYSLV SVPEGNDISS IFELDPTTLR GGDSLVPRNS YVRLRHLCTN TWVH STNIP IDKEEEKPVM LKIGTSPLKE DKEAFAIVPV SPAEVRDLDF ANDASKVLGS IAGKLEKGTI TQNERRSVTK LLEDL VYFV TGGTNSGQDV LEVVFSKPNR ERQKLMREQN ILKQIFKLLQ APFTDCGDGP MLRLEELGDQ RHAPFRHICR LCYRVL RHS QQDYRKNQEY IAKQFGFMQK QIGYDVLAED TITALLHNNR KLLEKHITAA EIDTFVSLVR KNREPRFLDY LSDLCVS MN KSIPVTQELI CKAVLNPTNA DILIETKLVL SRFEFEGVST GENALEAGED EEEVWLFWRD SNKEIRSKSV RELAQDAK E GQKEDRDVLS YYRYQLNLFA RMCLDRQYLA INEISGQLDV DLILRCMSDE NLPYDLRASF CRLMLHMHVD RDPQEQVTP VKYARLWSEI PSEIAIDDYD SSGASKDEIK ERFAQTMEFV EEYLRDVVCQ RFPFSDKEKN KLTFEVVNLA RNLIYFGFYN FSDLLRLTK ILLAILDCVH VTTIFPISKM TKGEENKGSN VMRSIHGVGE LMTQVVLRGG GFLPMTPMAA APEGNVKQAE P EKEDIMVM DTKLKIIEIL QFILNVRLDY RISCLLCIFK REFDESNSQS SETSSGNSSQ EGPSNVPGAL DFEHIEEQAE GI FGGSEEN TPLDLDDHGG RTFLRVLLHL TMHDYPPLVS GALQLLFRHF SQRQEVLQAF KQVQLLVTSQ DVDNYKQIKQ DLD QLRSIV EKSELWVYKG QGPDEPMDGA SGENEHKKTE EGTSKPLKHE STSSYNYRVV KEILIRLSKL CVQESASVRK SRKQ QQRLL RNMGAHAVVL ELLQIPYEKA EDTKMQEIMR LAHEFLQNFC AGNQQNQALL HKHINLFLNP GILEAVTMQH IFMNN FQLC SEINERVVQH FVHCIETHGR NVQYIKFLQT IVKAEGKFIK KCQDMVMAEL VNSGEDVLVF YNDRASFQTL IQMMRS ERD RMDENSPLFM YHIHLVELLA VCTEGKNVYT EIKCNSLLPL DDIVRVVTHE DCIPEVKIAY INFLNHCYVD TEVEMKE IY TSNHMWKLFE NFLVDICRAC NNTSDRKHAD SVLEKYVTEI VMSIVTTFFS SPFSDQSTTL QTRQPVFVQL LQGVFRVY H CNWLMPSQKA SVESCIRVLS DVAKSRAIAI PVDLDSQVNN LFLKSHNIVQ KTAMNWRLSA RNAARRDSVL AASRDYRNI IERLQDIVSA LEDRLRPLVQ AELSVLVDVL HRPELLFPEN TDARRKCESG GFICKLIKHT KQLLEENEEK LCIKVLQTLR EMMTKDRGY GEKQISIDEL ENAELPQPPE AENSTEQELE PSPPLRQLED HKRGEALRQI LVNRYYGNIR PSGRRESLTS F GNGPLSPG GPSKPGGGGG GPGSGSTSRG EMSLAEVQCH LDKEGASNLV IDLIMNASSD RVFHESILLA IALLEGGNTT IQ HSFFCRL TEDKKSEKFF KVFYDRMKVA QQEIKATVTV NTSDLGNKKK DDEVDRDAPS RKKAKEPTTQ ITEEVRDQLL EAS AATRKA FTTFRREADP DDHYQSGEGT QATTDKAKDD LEMSAVITIM QPILRFLQLL CENHNRDLQN FLRCQNNKTN YNLV CETLQ FLDCICGSTT GGLGLLGLYI NEKNVALINQ TLESLTEYCQ GPCHENQNCI ATHESNGIDI ITALILNDIN PLGKK RMDL VLELKNNASK LLLAIMESRH DSENAERILY NMRPKELVEV IKKAYMQGEV EFEDGENGED GAASPRNVGH NIYILA HQL ARHNKELQTM LKPGGQVDGD EALEFYAKHT AQIEIVRLDR TMEQIVFPVP SICEFLTKES KLRIYYTTER DEQGSKI ND FFLRSEDLFN EMNWQKKLRA QPVLYWCARN MSFWSSISFN LAVLMNLLVA FFYPFKGVRG GTLEPHWSGL LWTAMLIS L AIVIALPKPH GIRALIASTI LRLIFSVGLQ PTLFLLGAFN VCNKIIFLMS FVGNCGTFTR GYRAMVLDVE FLYHLLYLL ICAMGLFVHE FFYSLLLFDL VYREETLLNV IKSVTRNGRP IILTAALALI LVYLFSIVGY LFFKDDFILE VDRLPNETAG PETGESLAN DFLYSDVCRV ETGENCTSPA PKEELLPVEE TEQDKEHTCE TLLMCIVTVL SHGLRSGGGV GDVLRKPSKE E PLFAARVI YDLLFFFMVI IIVLNLIFGV IIDTFADLRS EKQKKEEILK TTCFICGLER DKFDNKTVTF EEHIKEEHNM WH YLCFIVL VKVKDSTEYT GPESYVAEMI RERNLDWFPR MRAMSLVSSD SEGEQNELRN LQEKLESTMK LVTNLSGQLS ELK DQMTEQ RKQKQRIGLL GHP |
-分子 #2: Adenophostin A
分子 | 名称: Adenophostin A / タイプ: ligand / ID: 2 / コピー数: 4 / 式: JYP |
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分子量 | 理論値: 669.322 Da |
Chemical component information | ChemComp-JYP: |
-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
濃度 | 0.1 mg/mL |
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緩衝液 | pH: 7.4 詳細: 50 mM Tris-HCl buffer (pH 7.4), 150 mM NaCl, 1 mM DTT, 0.4% CHAPS,100 nM of AdA, 300 nM of Ca2+, protease inhibitors |
グリッド | モデル: Quantifoil R2/1 / 材質: COPPER / メッシュ: 400 / 支持フィルム - 材質: CARBON / 支持フィルム - トポロジー: CONTINUOUS / 前処理 - タイプ: GLOW DISCHARGE |
凍結 | 凍結剤: ETHANE / チャンバー内湿度: 100 % / チャンバー内温度: 293 K / 装置: FEI VITROBOT MARK IV |
-電子顕微鏡法
顕微鏡 | FEI TECNAI F30 |
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温度 | 最低: 93.0 K / 最高: 93.0 K |
撮影 | フィルム・検出器のモデル: GATAN K2 SUMMIT (4k x 4k) 検出モード: COUNTING / デジタル化 - 画像ごとのフレーム数: 2-17 / 実像数: 14686 / 平均露光時間: 0.2 sec. / 平均電子線量: 1.3 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 / Cs: 2.0 mm |
試料ステージ | 試料ホルダーモデル: GATAN 910 MULTI-SPECIMEN SINGLE TILT CRYO TRANSFER HOLDER ホルダー冷却材: NITROGEN |
実験機器 | モデル: Tecnai F30 / 画像提供: FEI Company |
+画像解析
-原子モデル構築 1
精密化 | プロトコル: AB INITIO MODEL |
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得られたモデル | PDB-6mu1: |