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基本情報
登録情報 | データベース: PDB / ID: 7o2w | |||||||||||||||||||||||||||||||||||||||||||||
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タイトル | Structure of the C9orf72-SMCR8 complex | |||||||||||||||||||||||||||||||||||||||||||||
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![]() | PROTEIN BINDING / Denn domain / Coiled-coil / GTPase-activating protein | |||||||||||||||||||||||||||||||||||||||||||||
機能・相同性 | ![]() Atg1/ULK1 kinase complex / SUMO is conjugated to E1 (UBA2:SAE1) / SUMOylation of nuclear envelope proteins / SUMO is transferred from E1 to E2 (UBE2I, UBC9) / SUMO is proteolytically processed / SUMOylation of transcription factors / late endosome to lysosome transport / SUMOylation of transcription cofactors / Postmitotic nuclear pore complex (NPC) reformation / regulation of TORC1 signaling ...Atg1/ULK1 kinase complex / SUMO is conjugated to E1 (UBA2:SAE1) / SUMOylation of nuclear envelope proteins / SUMO is transferred from E1 to E2 (UBE2I, UBC9) / SUMO is proteolytically processed / SUMOylation of transcription factors / late endosome to lysosome transport / SUMOylation of transcription cofactors / Postmitotic nuclear pore complex (NPC) reformation / regulation of TORC1 signaling / negative regulation of immune response / septin ring / SUMOylation of DNA damage response and repair proteins / Transcriptional and post-translational regulation of MITF-M expression and activity / regulation of actin filament organization / SUMOylation of DNA replication proteins / negative regulation of autophagosome assembly / guanyl-nucleotide exchange factor complex / regulation of autophagosome assembly / SUMOylation of SUMOylation proteins / Recruitment and ATM-mediated phosphorylation of repair and signaling proteins at DNA double strand breaks / SUMOylation of RNA binding proteins / Flemming body / axon extension / regulation of synaptic vesicle cycle / positive regulation of autophagosome maturation / negative regulation of exocytosis / SUMOylation of chromatin organization proteins / main axon / negative regulation of macroautophagy / protein kinase inhibitor activity / detection of maltose stimulus / maltose transport complex / carbohydrate transport / ubiquitin-like protein ligase binding / protein sumoylation / positive regulation of macroautophagy / negative regulation of protein phosphorylation / carbohydrate transmembrane transporter activity / maltose binding / positive regulation of TOR signaling / maltose transport / maltodextrin transmembrane transport / presynaptic cytosol / axonal growth cone / ATP-binding cassette (ABC) transporter complex, substrate-binding subunit-containing / stress granule assembly / GTPase activator activity / ATP-binding cassette (ABC) transporter complex / autophagosome / hippocampal mossy fiber to CA3 synapse / guanyl-nucleotide exchange factor activity / condensed nuclear chromosome / cell projection / cell chemotaxis / P-body / small GTPase binding / autophagy / protein tag activity / endocytosis / cytoplasmic stress granule / presynapse / regulation of protein localization / outer membrane-bounded periplasmic space / nuclear membrane / perikaryon / periplasmic space / lysosome / postsynapse / endosome / regulation of autophagy / negative regulation of gene expression / intracellular membrane-bounded organelle / dendrite / DNA damage response / protein kinase binding / chromatin / glutamatergic synapse / extracellular space / nucleoplasm / identical protein binding / nucleus / membrane / cytosol / cytoplasm 類似検索 - 分子機能 | |||||||||||||||||||||||||||||||||||||||||||||
生物種 | ![]() ![]() ![]() ![]() ![]() | |||||||||||||||||||||||||||||||||||||||||||||
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: 3.8 Å | |||||||||||||||||||||||||||||||||||||||||||||
![]() | Noerpel, J. / Cavadini, S. / Schenk, A.D. / Graff-Meyer, A. / Chao, J. / Bhaskar, V. | |||||||||||||||||||||||||||||||||||||||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Structure of the human C9orf72-SMCR8 complex reveals a multivalent protein interaction architecture. 著者: Julia Nörpel / Simone Cavadini / Andreas D Schenk / Alexandra Graff-Meyer / Daniel Hess / Jan Seebacher / Jeffrey A Chao / Varun Bhaskar / ![]() 要旨: A major cause of familial amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD) spectrum disorder is the hexanucleotide G4C2 repeat expansion in the first intron of the C9orf72 gene. ...A major cause of familial amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD) spectrum disorder is the hexanucleotide G4C2 repeat expansion in the first intron of the C9orf72 gene. Many underlying mechanisms lead to manifestation of disease that include toxic gain-of-function by repeat G4C2 RNAs, dipeptide repeat proteins, and a reduction of the C9orf72 gene product. The C9orf72 protein interacts with SMCR8 and WDR41 to form a trimeric complex and regulates multiple cellular pathways including autophagy. Here, we report the structure of the C9orf72-SMCR8 complex at 3.8 Å resolution using single-particle cryo-electron microscopy (cryo-EM). The structure reveals 2 distinct dimerization interfaces between C9orf72 and SMCR8 that involves an extensive network of interactions. Homology between C9orf72-SMCR8 and Folliculin-Folliculin Interacting Protein 2 (FLCN-FNIP2), a GTPase activating protein (GAP) complex, enabled identification of a key residue within the active site of SMCR8. Further structural analysis suggested that a coiled-coil region within the uDenn domain of SMCR8 could act as an interaction platform for other coiled-coil proteins, and its deletion reduced the interaction of the C9orf72-SMCR8 complex with FIP200 upon starvation. In summary, this study contributes toward our understanding of the biological function of the C9orf72-SMCR8 complex. | |||||||||||||||||||||||||||||||||||||||||||||
履歴 |
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構造の表示
ムービー |
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構造ビューア | 分子: ![]() ![]() |
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PDBx/mmCIF形式 | ![]() | 182.2 KB | 表示 | ![]() |
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PDB形式 | ![]() | 125.9 KB | 表示 | ![]() |
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アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
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-関連構造データ
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リンク
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集合体
登録構造単位 | ![]()
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要素
#1: タンパク質 | 分子量: 67167.727 Da / 分子数: 1 / 由来タイプ: 組換発現 由来: (組換発現) ![]() ![]() ![]() 遺伝子: SMT3, YDR510W, D9719.15, C9orf72 発現宿主: ![]() ![]() 参照: UniProt: Q12306, UniProt: Q96LT7 |
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#2: タンパク質 | 分子量: 134389.406 Da / 分子数: 1 / 由来タイプ: 組換発現 由来: (組換発現) ![]() ![]() ![]() 遺伝子: SMCR8, malE, b4034, JW3994 発現宿主: ![]() ![]() 参照: UniProt: Q8TEV9, UniProt: P0AEX9 |
Has protein modification | N |
-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 |
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試料調製
構成要素 | 名称: C9orf72-SMCR8 complex / タイプ: COMPLEX / Entity ID: all / 由来: RECOMBINANT |
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分子量 | 値: 0.201 MDa / 実験値: NO |
由来(天然) | 生物種: ![]() |
由来(組換発現) | 生物種: ![]() ![]() |
緩衝液 | pH: 8 |
試料 | 濃度: 0.37 mg/ml / 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 |
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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: ![]() |
電子レンズ | モード: BRIGHT FIELD |
撮影 | 電子線照射量: 50 e/Å2 フィルム・検出器のモデル: FEI FALCON III (4k x 4k) |
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解析
ソフトウェア | 名称: PHENIX / バージョン: 1.18.2_3874: / 分類: 精密化 | ||||||||||||||||||||||||
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CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
3次元再構成 | 解像度: 3.8 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 284568 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
拘束条件 |
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