+データを開く
-基本情報
登録情報 | データベース: PDB / ID: 7pgt | ||||||||||||
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タイトル | The structure of human neurofibromin isoform 2 in opened conformation. | ||||||||||||
要素 | Neurofibromin | ||||||||||||
キーワード | SIGNALING PROTEIN / Neurofibromin / Cancer (悪性腫瘍) / GAP / Ras / Neurofibromatosis type 1 (神経線維腫症1型) | ||||||||||||
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 / gamma-aminobutyric acid secretion, neurotransmission / observational learning / Schwann cell migration / negative regulation of Schwann cell migration / vascular associated smooth muscle cell migration / amygdala development / mast cell apoptotic process ...positive regulation of mast cell apoptotic process / negative regulation of Rac protein signal transduction / regulation of glial cell differentiation / gamma-aminobutyric acid secretion, neurotransmission / observational learning / Schwann cell migration / negative regulation of Schwann cell migration / vascular associated smooth muscle cell migration / amygdala development / mast cell apoptotic process / negative regulation of mast cell proliferation / 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 vascular associated smooth muscle cell migration / positive regulation of adenylate cyclase activity / regulation of cell-matrix adhesion / forebrain morphogenesis / negative regulation of neurotransmitter secretion / hair follicle maturation / regulation of blood vessel endothelial cell migration / cell communication / smooth muscle tissue development / negative regulation of oligodendrocyte differentiation / camera-type eye morphogenesis / sympathetic nervous system development / myelination in peripheral nervous system / myeloid leukocyte migration / phosphatidylethanolamine binding / phosphatidylcholine binding / peripheral nervous system development / metanephros development / positive regulation of extrinsic apoptotic signaling pathway in absence of ligand / collagen fibril organization / endothelial cell proliferation / regulation of bone resorption / regulation of long-term synaptic potentiation / neural tube development / forebrain astrocyte development / regulation of postsynapse organization / 顔料 / artery morphogenesis / negative regulation of neuroblast proliferation / regulation of synaptic transmission, GABAergic / adrenal gland development / negative regulation of protein import into nucleus / negative regulation of cell-matrix adhesion / spinal cord development / regulation of GTPase activity / negative regulation of MAPK cascade / Rac protein signal transduction / oligodendrocyte differentiation / negative regulation of osteoclast differentiation / negative regulation of endothelial cell proliferation / RAS signaling downstream of NF1 loss-of-function variants / negative regulation of astrocyte differentiation / neuroblast proliferation / extrinsic apoptotic signaling pathway via death domain receptors / regulation of angiogenesis / Schwann cell development / negative regulation of stem cell proliferation / negative regulation of fibroblast proliferation / skeletal muscle tissue development / extrinsic apoptotic signaling pathway in absence of ligand / positive regulation of vascular associated smooth muscle cell proliferation / positive regulation of endothelial cell proliferation / GTPase activator activity / extracellular matrix organization / negative regulation of angiogenesis / osteoclast differentiation / regulation of ERK1 and ERK2 cascade / negative regulation of cell migration / liver development / negative regulation of MAP kinase activity / phosphatidylinositol 3-kinase/protein kinase B signal transduction / long-term synaptic potentiation / stem cell proliferation / regulation of long-term neuronal synaptic plasticity / brain development / negative regulation of protein kinase activity / visual learning / wound healing / cerebral cortex development / 認識 / osteoblast differentiation / positive regulation of GTPase activity / Regulation of RAS by GAPs / protein import into nucleus / positive regulation of neuron apoptotic process / 分裂促進因子活性化タンパク質キナーゼ / presynapse / cellular response to heat / heart development / fibroblast proliferation / actin cytoskeleton organization / 遺伝子発現の調節 / 血管新生 類似検索 - 分子機能 | ||||||||||||
生物種 | Homo sapiens (ヒト) | ||||||||||||
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: 4.8 Å | ||||||||||||
データ登録者 | Naschberger, A. / Baradaran, R. / Carroni, M. / Rupp, B. | ||||||||||||
資金援助 | オーストリア, 3件
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引用 | ジャーナル: Nature / 年: 2021 タイトル: The structure of neurofibromin isoform 2 reveals different functional states. 著者: Andreas Naschberger / Rozbeh Baradaran / Bernhard Rupp / Marta Carroni / 要旨: The autosomal dominant monogenetic disease neurofibromatosis type 1 (NF1) affects approximately one in 3,000 individuals and is caused by mutations in the NF1 tumour suppressor gene, leading to ...The autosomal dominant monogenetic disease neurofibromatosis type 1 (NF1) affects approximately one in 3,000 individuals and is caused by mutations in the NF1 tumour suppressor gene, leading to dysfunction in the protein neurofibromin (Nf1). As a GTPase-activating protein, a key function of Nf1 is repression of the Ras oncogene signalling cascade. We determined the human Nf1 dimer structure at an overall resolution of 3.3 Å. The cryo-electron microscopy structure reveals domain organization and structural details of the Nf1 exon 23a splicing isoform 2 in a closed, self-inhibited, Zn-stabilized state and an open state. In the closed conformation, HEAT/ARM core domains shield the GTPase-activating protein-related domain (GRD) so that Ras binding is sterically inhibited. In a distinctly different, open conformation of one protomer, a large-scale movement of the GRD occurs, which is necessary to access Ras, whereas Sec14-PH reorients to allow interaction with the cellular membrane. Zn incubation of Nf1 leads to reduced Ras-GAP activity with both protomers in the self-inhibited, closed conformation stabilized by a Zn binding site between the N-HEAT/ARM domain and the GRD-Sec14-PH linker. The transition between closed, self-inhibited states of Nf1 and open states provides guidance for targeted studies deciphering the complex molecular mechanism behind the widespread neurofibromatosis syndrome and Nf1 dysfunction in carcinogenesis. | ||||||||||||
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 | 分子: MolmilJmol/JSmol |
-ダウンロードとリンク
-ダウンロード
PDBx/mmCIF形式 | 7pgt.cif.gz | 1.5 MB | 表示 | PDBx/mmCIF形式 |
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PDB形式 | pdb7pgt.ent.gz | 1.3 MB | 表示 | PDB形式 |
PDBx/mmJSON形式 | 7pgt.json.gz | ツリー表示 | PDBx/mmJSON形式 | |
その他 | その他のダウンロード |
-検証レポート
アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/pg/7pgt ftp://data.pdbj.org/pub/pdb/validation_reports/pg/7pgt | HTTPS FTP |
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-関連構造データ
-リンク
-集合体
登録構造単位 |
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1 |
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-要素
#1: タンパク質 | 分子量: 319757.656 Da / 分子数: 2 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: NF1 発現宿主: Spodoptera frugiperda (ツマジロクサヨトウ) 参照: UniProt: P21359 #2: 化合物 | ChemComp-ZN / | 研究の焦点であるリガンドがあるか | Y | |
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-実験情報
-実験
実験 | 手法: 電子顕微鏡法 |
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EM実験 | 試料の集合状態: PARTICLE / 3次元再構成法: 単粒子再構成法 |
-試料調製
構成要素 | 名称: Homo-dimer of human Neurofibromin Isoform 2 / タイプ: COMPLEX / Entity ID: #1 / 由来: RECOMBINANT |
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分子量 | 値: 0.64 MDa / 実験値: YES |
由来(天然) | 生物種: Homo sapiens (ヒト) |
由来(組換発現) | 生物種: Spodoptera frugiperda (ツマジロクサヨトウ) |
緩衝液 | pH: 7.5 |
試料 | 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES |
急速凍結 | 凍結剤: ETHANE |
-電子顕微鏡撮影
実験機器 | モデル: Titan Krios / 画像提供: FEI Company |
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顕微鏡 | モデル: FEI TITAN KRIOS |
電子銃 | 電子線源: FIELD EMISSION GUN / 加速電圧: 300 kV / 照射モード: OTHER |
電子レンズ | モード: BRIGHT FIELDBright-field microscopy |
撮影 | 電子線照射量: 1 e/Å2 フィルム・検出器のモデル: GATAN K3 BIOQUANTUM (6k x 4k) |
-解析
CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION |
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3次元再構成 | 解像度: 4.8 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 51951 / 対称性のタイプ: POINT |