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データを開く
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基本情報
| 登録情報 | データベース: PDB / ID: 8g1u | |||||||||||||||||||||||||||||||||
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| タイトル | Structure of the methylosome-Lsm10/11 complex | |||||||||||||||||||||||||||||||||
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キーワード | TRANSFERASE / Methylation / GENE REGULATION | |||||||||||||||||||||||||||||||||
| 機能・相同性 | 機能・相同性情報snRNP Assembly / mRNA 3'-end processing by stem-loop binding and cleavage / positive regulation of adenylate cyclase-inhibiting dopamine receptor signaling pathway / peptidyl-arginine N-methylation / type II protein arginine methyltransferase / protein-arginine omega-N symmetric methyltransferase activity / Golgi ribbon formation / peptidyl-arginine methylation / U7 snRNA binding / histone H4R3 methyltransferase activity ...snRNP Assembly / mRNA 3'-end processing by stem-loop binding and cleavage / positive regulation of adenylate cyclase-inhibiting dopamine receptor signaling pathway / peptidyl-arginine N-methylation / type II protein arginine methyltransferase / protein-arginine omega-N symmetric methyltransferase activity / Golgi ribbon formation / peptidyl-arginine methylation / U7 snRNA binding / histone H4R3 methyltransferase activity / regulation of chromatin organization / U7 snRNP / histone pre-mRNA 3'end processing complex / nuclear histone mRNA catabolic process / SLBP independent Processing of Histone Pre-mRNAs / SLBP Dependent Processing of Replication-Dependent Histone Pre-mRNAs / 7-methylguanosine cap hypermethylation / protein-arginine N-methyltransferase activity / positive regulation of mRNA splicing, via spliceosome / pICln-Sm protein complex / methylosome / cell volume homeostasis / sperm head-tail coupling apparatus / methyl-CpG binding / positive regulation of rRNA processing / mRNA cis splicing, via spliceosome / telomerase holoenzyme complex / endothelial cell activation / RNA Polymerase II Transcription Termination / chloride transport / histone H3 methyltransferase activity / regulation of mitotic nuclear division / histone methyltransferase activity / negative regulation of gene expression via chromosomal CpG island methylation / positive regulation of oligodendrocyte differentiation / E-box binding / Cul4B-RING E3 ubiquitin ligase complex / histone methyltransferase complex / negative regulation of cell differentiation / regulation of ERK1 and ERK2 cascade / ribonucleoprotein complex binding / positive regulation of G1/S transition of mitotic cell cycle / spliceosomal snRNP assembly / ubiquitin-like ligase-substrate adaptor activity / spliceosomal complex / liver regeneration / regulation of signal transduction by p53 class mediator / methyltransferase activity / circadian regulation of gene expression / sperm principal piece / DNA-templated transcription termination / Regulation of TP53 Activity through Methylation / RMTs methylate histone arginines / protein polyubiquitination / sperm midpiece / p53 binding / transcription corepressor activity / microtubule cytoskeleton / snRNP Assembly / cilium / ubiquitin-dependent protein catabolic process / nuclear body / transcription coactivator activity / chromatin remodeling / protein heterodimerization activity / regulation of DNA-templated transcription / chromatin / Golgi apparatus / nucleoplasm / identical protein binding / nucleus / plasma membrane / cytosol / cytoplasm 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: 2.83 Å | |||||||||||||||||||||||||||||||||
データ登録者 | Lin, M. / Paige, A. / Tong, L. | |||||||||||||||||||||||||||||||||
| 資金援助 | 米国, 1件
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引用 | ジャーナル: RNA / 年: 2023タイトル: In vitro methylation of the U7 snRNP subunits Lsm11 and SmE by the PRMT5/MEP50/pICln methylosome. 著者: Xiao-Cui Yang / Anthony Desotell / Min-Han Lin / Andrew S Paige / Agata Malinowska / Yadong Sun / Wei Shen Aik / Michał Dadlez / Liang Tong / Zbigniew Dominski / ![]() 要旨: U7 snRNP is a multisubunit endonuclease required for 3' end processing of metazoan replication-dependent histone pre-mRNAs. In contrast to the spliceosomal snRNPs, U7 snRNP lacks the Sm subunits D1 ...U7 snRNP is a multisubunit endonuclease required for 3' end processing of metazoan replication-dependent histone pre-mRNAs. In contrast to the spliceosomal snRNPs, U7 snRNP lacks the Sm subunits D1 and D2 and instead contains two related proteins, Lsm10 and Lsm11. The remaining five subunits of the U7 heptameric Sm ring, SmE, F, G, B, and D3, are shared with the spliceosomal snRNPs. The pathway that assembles the unique ring of U7 snRNP is unknown. Here, we show that a heterodimer of Lsm10 and Lsm11 tightly interacts with the methylosome, a complex of the arginine methyltransferase PRMT5, MEP50, and pICln known to methylate arginines in the carboxy-terminal regions of the Sm proteins B, D1, and D3 during the spliceosomal Sm ring assembly. Both biochemical and cryo-EM structural studies demonstrate that the interaction is mediated by PRMT5, which binds and methylates two arginine residues in the amino-terminal region of Lsm11. Surprisingly, PRMT5 also methylates an amino-terminal arginine in SmE, a subunit that does not undergo this type of modification during the biogenesis of the spliceosomal snRNPs. An intriguing possibility is that the unique methylation pattern of Lsm11 and SmE plays a vital role in the assembly of the U7 snRNP. | |||||||||||||||||||||||||||||||||
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構造の表示
| 構造ビューア | 分子: Molmil Jmol/JSmol |
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ダウンロードとリンク
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ダウンロード
| PDBx/mmCIF形式 | 8g1u.cif.gz | 676.1 KB | 表示 | PDBx/mmCIF形式 |
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| PDB形式 | pdb8g1u.ent.gz | 531.1 KB | 表示 | PDB形式 |
| PDBx/mmJSON形式 | 8g1u.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/g1/8g1u ftp://data.pdbj.org/pub/pdb/validation_reports/g1/8g1u | HTTPS FTP |
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-関連構造データ
| 関連構造データ | ![]() 29677MC M: このデータのモデリングに利用したマップデータ C: 同じ文献を引用 ( |
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| 類似構造データ | 類似検索 - 機能・相同性 F&H 検索 |
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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: 72766.664 Da / 分子数: 4 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: PRMT5, HRMT1L5, IBP72, JBP1, SKB1 / 発現宿主: Trichoplusia ni (イラクサキンウワバ)参照: UniProt: O14744, type II protein arginine methyltransferase #2: タンパク質 | 分子量: 36757.246 Da / 分子数: 4 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: WDR77, MEP50, WD45, HKMT1069, Nbla10071 / 発現宿主: Trichoplusia ni (イラクサキンウワバ) / 参照: UniProt: Q9BQA1#3: タンパク質 | 分子量: 26038.957 Da / 分子数: 4 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() #4: タンパク質 | 分子量: 39572.793 Da / 分子数: 4 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: LSM11 / 発現宿主: Trichoplusia ni (イラクサキンウワバ) / 参照: UniProt: P83369#5: 化合物 | ChemComp-ADN / 研究の焦点であるリガンドがあるか | Y | Has protein modification | N | |
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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 |
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試料調製
| 構成要素 | 名称: Methylosome / タイプ: COMPLEX / Entity ID: #1-#4 / 由来: RECOMBINANT |
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| 分子量 | 実験値: NO |
| 由来(天然) | 生物種: Homo sapiens (ヒト) |
| 由来(組換発現) | 生物種: Trichoplusia ni (イラクサキンウワバ) |
| 緩衝液 | pH: 8 |
| 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 |
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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: FIELD EMISSION GUN / 加速電圧: 300 kV / 照射モード: FLOOD BEAM |
| 電子レンズ | モード: BRIGHT FIELD / 最大 デフォーカス(公称値): 1250 nm / 最小 デフォーカス(公称値): 800 nm |
| 撮影 | 電子線照射量: 58.2 e/Å2 / フィルム・検出器のモデル: GATAN K3 (6k 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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| EMソフトウェア | 名称: PHENIX / カテゴリ: モデル精密化 | ||||||||||||||||||||||||
| CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||
| 3次元再構成 | 解像度: 2.83 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 754047 / 対称性のタイプ: POINT | ||||||||||||||||||||||||
| 拘束条件 |
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万見について




Homo sapiens (ヒト)

米国, 1件
引用

PDBj




gel filtration
Trichoplusia ni (イラクサキンウワバ)


