+データを開く
-基本情報
登録情報 | データベース: EMDB / ID: EMD-14218 | |||||||||
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タイトル | Composite map of the occluded conformation of neurofibromin | |||||||||
マップデータ | Composite map of neurofibromin in the occluded conformation | |||||||||
試料 |
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キーワード | Signalling protein / GAP / Neurofibromatosis type I / Homodimer / SIGNALING PROTEIN | |||||||||
機能・相同性 | 機能・相同性情報 positive regulation of mast cell apoptotic process / negative regulation of Rac protein signal transduction / regulation of glial cell differentiation / observational learning / Schwann cell migration / negative regulation of Schwann cell migration / vascular associated smooth muscle cell migration / amygdala development / negative regulation of mast cell proliferation / gamma-aminobutyric acid secretion, neurotransmission ...positive regulation of mast cell apoptotic process / negative regulation of Rac protein signal transduction / regulation of glial cell differentiation / observational learning / Schwann cell migration / negative regulation of Schwann cell migration / vascular associated smooth muscle cell migration / amygdala development / negative regulation of mast cell proliferation / gamma-aminobutyric acid secretion, neurotransmission / mast cell apoptotic process / Schwann cell proliferation / vascular associated smooth muscle cell proliferation / mast cell proliferation / glutamate secretion, neurotransmission / negative regulation of Schwann cell proliferation / negative regulation of leukocyte migration / negative regulation of neurotransmitter secretion / negative regulation of vascular associated smooth muscle cell migration / positive regulation of adenylate cyclase activity / forebrain morphogenesis / hair follicle maturation / regulation of cell-matrix adhesion / regulation of blood vessel endothelial cell migration / smooth muscle tissue development / camera-type eye morphogenesis / cell communication / negative regulation of oligodendrocyte differentiation / peripheral nervous system development / sympathetic nervous system development / myeloid leukocyte migration / myelination in peripheral nervous system / phosphatidylcholine binding / positive regulation of extrinsic apoptotic signaling pathway in absence of ligand / metanephros development / negative regulation of Ras protein signal transduction / phosphatidylethanolamine binding / regulation of bone resorption / collagen fibril organization / regulation of long-term synaptic potentiation / neural tube development / endothelial cell proliferation / forebrain astrocyte development / artery morphogenesis / pigmentation / regulation of postsynapse organization / negative regulation of neuroblast proliferation / negative regulation of protein import into nucleus / adrenal gland development / regulation of synaptic transmission, GABAergic / negative regulation of cell-matrix adhesion / regulation of GTPase activity / spinal cord development / Rac protein signal transduction / negative regulation of osteoclast differentiation / negative regulation of endothelial cell proliferation / oligodendrocyte differentiation / RAS signaling downstream of NF1 loss-of-function variants / negative regulation of astrocyte differentiation / extrinsic apoptotic signaling pathway via death domain receptors / neuroblast proliferation / negative regulation of MAPK cascade / regulation of angiogenesis / Schwann cell development / negative regulation of stem cell proliferation / extrinsic apoptotic signaling pathway in absence of ligand / negative regulation of fibroblast proliferation / negative regulation of MAP kinase activity / positive regulation of vascular associated smooth muscle cell proliferation / skeletal muscle tissue development / positive regulation of endothelial cell proliferation / phosphatidylinositol 3-kinase/protein kinase B signal transduction / regulation of ERK1 and ERK2 cascade / GTPase activator activity / extracellular matrix organization / negative regulation of angiogenesis / osteoclast differentiation / liver development / positive regulation of GTPase activity / negative regulation of cell migration / stem cell proliferation / long-term synaptic potentiation / negative regulation of protein kinase activity / wound healing / regulation of long-term neuronal synaptic plasticity / brain development / visual learning / cerebral cortex development / cognition / osteoblast differentiation / Regulation of RAS by GAPs / protein import into nucleus / positive regulation of neuron apoptotic process / MAPK cascade / heart development / presynapse / cellular response to heat / actin cytoskeleton organization / fibroblast proliferation / regulation of gene expression 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: 3.6 Å | |||||||||
データ登録者 | Chaker-Margot M / Scheffzek K | |||||||||
資金援助 | スイス, 1件
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引用 | ジャーナル: Mol Cell / 年: 2022 タイトル: Structural basis of activation of the tumor suppressor protein neurofibromin. 著者: Malik Chaker-Margot / Sebastiaan Werten / Theresia Dunzendorfer-Matt / Stefan Lechner / Angela Ruepp / Klaus Scheffzek / Timm Maier / 要旨: Mutations in the NF1 gene cause the familial genetic disease neurofibromatosis type I, as well as predisposition to cancer. The NF1 gene product, neurofibromin, is a GTPase-activating protein and ...Mutations in the NF1 gene cause the familial genetic disease neurofibromatosis type I, as well as predisposition to cancer. The NF1 gene product, neurofibromin, is a GTPase-activating protein and acts as a tumor suppressor by negatively regulating the small GTPase, Ras. However, structural insights into neurofibromin activation remain incompletely defined. Here, we provide cryoelectron microscopy (cryo-EM) structures that reveal an extended neurofibromin homodimer in two functional states: an auto-inhibited state with occluded Ras-binding site and an asymmetric open state with an exposed Ras-binding site. Mechanistically, the transition to the active conformation is stimulated by nucleotide binding, which releases a lock that tethers the catalytic domain to an extended helical repeat scaffold in the occluded state. Structure-guided mutational analysis supports functional relevance of allosteric control. Disease-causing mutations are mapped and primarily impact neurofibromin stability. Our findings suggest a role for nucleotides in neurofibromin regulation and may lead to therapeutic modulation of Ras signaling. | |||||||||
履歴 |
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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_14218.map.gz | 243.4 MB | EMDBマップデータ形式 | |
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ヘッダ (付随情報) | emd-14218-v30.xml emd-14218.xml | 20.9 KB 20.9 KB | 表示 表示 | EMDBヘッダ |
画像 | emd_14218.png | 89.6 KB | ||
Filedesc metadata | emd-14218.cif.gz | 7.6 KB | ||
その他 | emd_14218_additional_1.map.gz emd_14218_additional_2.map.gz emd_14218_additional_3.map.gz | 256.5 MB 256.3 MB 484 MB | ||
アーカイブディレクトリ | http://ftp.pdbj.org/pub/emdb/structures/EMD-14218 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-14218 | HTTPS FTP |
-関連構造データ
関連構造データ | 7r03MC 7r04C 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 (文献) |
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類似構造データ | 類似検索 - 機能・相同性F&H 検索 |
-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_14218.map.gz / 形式: CCP4 / 大きさ: 512 MB / タイプ: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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注釈 | Composite map of neurofibromin in the occluded conformation | ||||||||||||||||||||||||||||||||||||
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: 1.058 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: Neurofibromin in the occluded conformation (masked refinement on...
ファイル | emd_14218_additional_1.map | ||||||||||||
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注釈 | Neurofibromin in the occluded conformation (masked refinement on half 1) | ||||||||||||
投影像・断面図 |
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密度ヒストグラム |
-追加マップ: Neurofibromin in the occluded conformation (masked refinement on...
ファイル | emd_14218_additional_2.map | ||||||||||||
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注釈 | Neurofibromin in the occluded conformation (masked refinement on half 2) | ||||||||||||
投影像・断面図 |
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密度ヒストグラム |
-追加マップ: Neurofibromin in the occluded conformation (unmasked)
ファイル | emd_14218_additional_3.map | ||||||||||||
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注釈 | Neurofibromin in the occluded conformation (unmasked) | ||||||||||||
投影像・断面図 |
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密度ヒストグラム |
-試料の構成要素
-全体 : Neurofibromin
全体 | 名称: Neurofibromin |
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要素 |
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-超分子 #1: Neurofibromin
超分子 | 名称: Neurofibromin / タイプ: complex / ID: 1 / 親要素: 0 / 含まれる分子: all |
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由来(天然) | 生物種: Homo sapiens (ヒト) |
分子量 | 理論値: 640 kDa/nm |
-分子 #1: Isoform I of Neurofibromin
分子 | 名称: Isoform I of Neurofibromin / タイプ: protein_or_peptide / ID: 1 / コピー数: 2 / 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: 317.410812 KDa |
組換発現 | 生物種: Spodoptera frugiperda (ツマジロクサヨトウ) |
配列 | 文字列: MAAHRPVEWV QAVVSRFDEQ LPIKTGQQNT HTKVSTEHNK ECLINISKYK FSLVISGLTT ILKNVNNMRI FGEAAEKNLY LSQLIILDT LEKCLAGQPK DTMRLDETML VKQLLPEICH FLHTCREGNQ HAAELRNSAS GVLFSLSCNN FNAVFSRIST R LQELTVCS ...文字列: MAAHRPVEWV QAVVSRFDEQ LPIKTGQQNT HTKVSTEHNK ECLINISKYK FSLVISGLTT ILKNVNNMRI FGEAAEKNLY LSQLIILDT LEKCLAGQPK DTMRLDETML VKQLLPEICH FLHTCREGNQ HAAELRNSAS GVLFSLSCNN FNAVFSRIST R LQELTVCS EDNVDVHDIE LLQYINVDCA KLKRLLKETA FKFKALKKVA QLAVINSLEK AFWNWVENYP DEFTKLYQIP QT DMAECAE KLFDLVDGFA ESTKRKAAVW PLQIILLILC PEIIQDISKD VVDENNMNKK LFLDSLRKAL AGHGGSRQLT ESA AIACVK LCKASTYINW EDNSVIFLLV QSMVVDLKNL LFNPSKPFSR GSQPADVDLM IDCLVSCFRI SPHNNQHFKI CLAQ NSPST FHYVLVNSLH RIITNSALDW WPKIDAVYCH SVELRNMFGE TLHKAVQGCG AHPAIRMAPS LTFKEKVTSL KFKEK PTDL ETRSYKYLLL SMVKLIHADP KLLLCNPRKQ GPETQGSTAE LITGLVQLVP QSHMPEIAQE AMEALLVLHQ LDSIDL WNP DAPVETFWEI SSQMLFYICK KLTSHQMLSS TEILKWLREI LICRNKFLLK NKQADRSSCH FLLFYGVGCD IPSSGNT SQ MSMDHEELLR TPGASLRKGK GNSSMDSAAG CSGTPPICRQ AQTKLEVALY MFLWNPDTEA VLVAMSCFRH LCEEADIR C GVDEVSVHNL LPNYNTFMEF ASVSNMMSTG RAALQKRVMA LLRRIEHPTA GNTEAWEDTH AKWEQATKLI LNYPKAKME DGQAAESLHK TIVKRRMSHV SGGGSIDLSD TDSLQEWINM TGFLCALGGV CLQQRSNSGL ATYSPPMGPV SERKGSMISV MSSEGNADT PVSKFMDRLL SLMVCNHEKV GLQIRTNVKD LVGLELSPAL YPMLFNKLKN TISKFFDSQG QVLLTDTNTQ F VEQTIAIM KNLLDNHTEG SSEHLGQASI ETMMLNLVRY VRVLGNMVHA IQIKTKLCQL VEVMMARRDD LSFCQEMKFR NK MVEYLTD WVMGTSNQAA DDDVKCLTRD LDQASMEAVV SLLAGLPLQP EEGDGVELME AKSQLFLKYF TLFMNLLNDC SEV EDESAQ TGGRKRGMSR RLASLRHCTV LAMSNLLNAN VDSGLMHSIG LGYHKDLQTR ATFMEVLTKI LQQGTEFDTL AETV LADRF ERLVELVTMM GDQGELPIAM ALANVVPCSQ WDELARVLVT LFDSRHLLYQ LLWNMFSKEV ELADSMQTLF RGNSL ASKI MTFCFKVYGA TYLQKLLDPL LRIVITSSDW QHVSFEVDPT RLEPSESLEE NQRNLLQMTE KFFHAIISSS SEFPPQ LRS VCHCLYQVVS QRFPQNSIGA VGSAMFLRFI NPAIVSPYEA GILDKKPPPR IERGLKLMSK ILQSIANHVL FTKEEHM RP FNDFVKSNFD AARRFFLDIA SDCPTSDAVN HSLSFISDGN VLALHRLLWN NQEKIGQYLS SNRDHKAVGR RPFDKMAT L LAYLGPPEHK PVADTHWSSL NLTSSKFEEF MTRHQVHEKE EFKALKTLSI FYQAGTSKAG NPIFYYVARR FKTGQINGD LLIYHVLLTL KPYYAKPYEI VVDLTHTGPS NRFKTDFLSK WFVVFPGFAY DNVSAVYIYN CNSWVREYTK YHERLLTGLK GSKRLVFID CPGKLAEHIE HEQQKLPAAT LALEEDLKVF HNALKLAHKD TKVSIKVGST AVQVTSAERT KVLGQSVFLN D IYYASEIE EICLVDENQF TLTIANQGTP LTFMHQECEA IVQSIIHIRT RWELSQPDSI PQHTKIRPKD VPGTLLNIAL LN LGSSDPS LRSAAYNLLC ALTCTFNLKI EGQLLETSGL CIPANNTLFI VSISKTLAAN EPHLTLEFLE ECISGFSKSS IEL KHLCLE YMTPWLSNLV RFCKHNDDAK RQRVTAILDK LITMTINEKQ MYPSIQAKIW GSLGQITDLL DVVLDSFIKT SATG GLGSI KAEVMADTAV ALASGNVKLV SSKVIGRMCK IIDKTCLSPT PTLEQHLMWD DIAILARYML MLSFNNSLDV AAHLP YLFH VVTFLVATGP LSLRASTHGL VINIIHSLCT CSQLHFSEET KQVLRLSLTE FSLPKFYLLF GISKVKSAAV IAFRSS YRD RSFSPGSYER ETFALTSLET VTEALLEIME ACMRDIPTCK WLDQWTELAQ RFAFQYNPSL QPRALVVFGC ISKRVSH GQ IKQIIRILSK ALESCLKGPD TYNSQVLIEA TVIALTKLQP LLNKDSPLHK ALFWVAVAVL QLDEVNLYSA GTALLEQN L HTLDSLRIFN DKSPEEVFMA IRNPLEWHCK QMDHFVGLNF NSNFNFALVG HLLKGYRHPS PAIVARTVRI LHTLLTLVN KHRNCDKFEV NTQSVAYLAA LLTVSEEVRS RCSLKHRKSL LLTDISMENV PMDTYPIHHG DPSYRTLKET QPWSSPKGSE GYLAATYPT VGQTSPRARK SMSLDMGQPS QANTKKLLGT RKSFDHLISD TKAPKRQEME SGITTPPKMR RVAETDYEME T QRISSSQQ HPHLRKVSVS ESNVLLDEEV LTDPKIQALL LTVLATLVKY TTDEFDQRIL YEYLAEASVV FPKVFPVVHN LL DSKINTL LSLCQDPNLL NPIHGIVQSV VYHEESPPQY QTSYLQSFGF NGLWRFAGPF SKQTQIPDYA ELIVKFLDAL IDT YLPGID EETSEESLLT PTSPYPPALQ SQLSITANLN LSNSMTSLAT SQHSPGIDKE NVELSPTTGH CNSGRTRHGS ASQV QKQRS AGSFKRNSIK KIV UniProtKB: Neurofibromin |
-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 | 0.3 mg/mL | |||||||||
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緩衝液 | pH: 7.4 構成要素:
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グリッド | モデル: Quantifoil R2/1 / 材質: COPPER / 支持フィルム - 材質: CARBON / 支持フィルム - トポロジー: HOLEY | |||||||||
凍結 | 凍結剤: ETHANE / チャンバー内湿度: 80 % / チャンバー内温度: 93 K / 装置: LEICA EM GP |
-電子顕微鏡法
顕微鏡 | FEI TITAN KRIOS |
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特殊光学系 | エネルギーフィルター - 名称: GIF 200 |
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 / 平均電子線量: 55.0 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 / Cs: 2.7 mm / 最大 デフォーカス(公称値): 2.2 µm / 最小 デフォーカス(公称値): 1.2 µm |
試料ステージ | 試料ホルダーモデル: FEI TITAN KRIOS AUTOGRID HOLDER ホルダー冷却材: NITROGEN |
実験機器 | モデル: Titan Krios / 画像提供: FEI Company |
-画像解析
初期モデル | モデルのタイプ: INSILICO MODEL |
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最終 再構成 | 解像度のタイプ: BY AUTHOR / 解像度: 3.6 Å / 解像度の算出法: FSC 0.143 CUT-OFF / ソフトウェア - 名称: cryoSPARC (ver. 2.14) / 使用した粒子像数: 360000 |
初期 角度割当 | タイプ: MAXIMUM LIKELIHOOD |
最終 角度割当 | タイプ: MAXIMUM LIKELIHOOD |