+データを開く
-基本情報
登録情報 | データベース: PDB / ID: 8rxb | |||||||||
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タイトル | Human UPF1 CH domain in complex with SMG6 peptide | |||||||||
要素 |
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キーワード | RNA BINDING PROTEIN / UPF1 Nonsense-mediated mRNA decay mRNA surveillance and turnover | |||||||||
機能・相同性 | 機能・相同性情報 regulation of dephosphorylation / : / double-stranded DNA helicase activity / supraspliceosomal complex / negative regulation of telomere capping / positive regulation of mRNA cis splicing, via spliceosome / exon-exon junction complex / telomere maintenance via semi-conservative replication / positive regulation of mRNA catabolic process / cell cycle phase transition ...regulation of dephosphorylation / : / double-stranded DNA helicase activity / supraspliceosomal complex / negative regulation of telomere capping / positive regulation of mRNA cis splicing, via spliceosome / exon-exon junction complex / telomere maintenance via semi-conservative replication / positive regulation of mRNA catabolic process / cell cycle phase transition / regulation of translational termination / histone mRNA catabolic process / regulation of telomere maintenance via telomerase / 3'-UTR-mediated mRNA destabilization / telomerase RNA binding / telomerase holoenzyme complex / regulation of telomere maintenance / nuclear-transcribed mRNA catabolic process, nonsense-mediated decay / DNA duplex unwinding / telomeric DNA binding / nuclear-transcribed mRNA catabolic process / cellular response to interleukin-1 / Nonsense Mediated Decay (NMD) independent of the Exon Junction Complex (EJC) / mRNA export from nucleus / Nonsense Mediated Decay (NMD) enhanced by the Exon Junction Complex (EJC) / ribonucleoprotein complex binding / DNA polymerase binding / RNA endonuclease activity / helicase activity / P-body / cellular response to lipopolysaccharide / DNA helicase / DNA replication / chromosome, telomeric region / 加水分解酵素; エステル加水分解酵素 / RNA helicase activity / RNA helicase / DNA repair / chromatin binding / protein-containing complex binding / chromatin / nucleolus / perinuclear region of cytoplasm / ATP hydrolysis activity / RNA binding / zinc ion binding / nucleoplasm / ATP binding / nucleus / metal ion binding / cytosol / cytoplasm 類似検索 - 分子機能 | |||||||||
生物種 | Homo sapiens (ヒト) | |||||||||
手法 | X線回折 / シンクロトロン / 分子置換 / 解像度: 2.6 Å | |||||||||
データ登録者 | Langer, L. / Basquin, J. / Conti, E. | |||||||||
資金援助 | European Union, ドイツ, 2件
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引用 | ジャーナル: Nucleic Acids Res / 年: 2024 タイトル: UPF1 helicase orchestrates mutually exclusive interactions with the SMG6 endonuclease and UPF2. 著者: Lukas M Langer / Katharina Kurscheidt / Jérôme Basquin / Fabien Bonneau / Iuliia Iermak / Claire Basquin / Elena Conti / 要旨: Nonsense-mediated mRNA decay (NMD) is a conserved co-translational mRNA surveillance and turnover pathway across eukaryotes. NMD has a central role in degrading defective mRNAs and also regulates the ...Nonsense-mediated mRNA decay (NMD) is a conserved co-translational mRNA surveillance and turnover pathway across eukaryotes. NMD has a central role in degrading defective mRNAs and also regulates the stability of a significant portion of the transcriptome. The pathway is organized around UPF1, an RNA helicase that can interact with several NMD-specific factors. In human cells, degradation of the targeted mRNAs begins with a cleavage event that requires the recruitment of the SMG6 endonuclease to UPF1. Previous studies have identified functional links between SMG6 and UPF1, but the underlying molecular mechanisms have remained elusive. Here, we used mass spectrometry, structural biology and biochemical approaches to identify and characterize a conserved short linear motif in SMG6 that interacts with the cysteine/histidine-rich (CH) domain of UPF1. Unexpectedly, we found that the UPF1-SMG6 interaction is precluded when the UPF1 CH domain is engaged with another NMD factor, UPF2. Based on cryo-EM data, we propose that the formation of distinct SMG6-containing and UPF2-containing NMD complexes may be dictated by different conformational states connected to the RNA-binding status of UPF1. Our findings rationalize a key event in metazoan NMD and advance our understanding of mechanisms regulating activity and guiding substrate recognition by the SMG6 endonuclease. | |||||||||
履歴 |
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-構造の表示
構造ビューア | 分子: MolmilJmol/JSmol |
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-ダウンロードとリンク
-ダウンロード
PDBx/mmCIF形式 | 8rxb.cif.gz | 344.6 KB | 表示 | PDBx/mmCIF形式 |
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PDB形式 | pdb8rxb.ent.gz | 279.6 KB | 表示 | PDB形式 |
PDBx/mmJSON形式 | 8rxb.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
文書・要旨 | 8rxb_validation.pdf.gz | 5.1 MB | 表示 | wwPDB検証レポート |
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文書・詳細版 | 8rxb_full_validation.pdf.gz | 5.1 MB | 表示 | |
XML形式データ | 8rxb_validation.xml.gz | 33.8 KB | 表示 | |
CIF形式データ | 8rxb_validation.cif.gz | 45.9 KB | 表示 | |
アーカイブディレクトリ | https://data.pdbj.org/pub/pdb/validation_reports/rx/8rxb ftp://data.pdbj.org/pub/pdb/validation_reports/rx/8rxb | HTTPS FTP |
-関連構造データ
関連構造データ | 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
-集合体
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非結晶学的対称性 (NCS) | NCSドメイン:
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