[日本語] English

- EMDB-23939: Cryo-EM structure of the human SSU processome, state pre-A1 - raw maps -
+
データを開く
-
基本情報
登録情報 | データベース: EMDB / ID: EMD-23939 | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
タイトル | Cryo-EM structure of the human SSU processome, state pre-A1 - raw maps | |||||||||
![]() | Main map | |||||||||
![]() |
| |||||||||
機能・相同性 | ![]() mRNA N-acetyltransferase activity / perforant pathway to dendrate granule cell synapse / regulation of translation at postsynapse / U6 snRNA 2'-O-ribose methyltransferase activity / oocyte growth / nucleologenesis / snoRNA localization / leucine zipper domain binding / granular component / tRNA wobble cytosine modification ...mRNA N-acetyltransferase activity / perforant pathway to dendrate granule cell synapse / regulation of translation at postsynapse / U6 snRNA 2'-O-ribose methyltransferase activity / oocyte growth / nucleologenesis / snoRNA localization / leucine zipper domain binding / granular component / tRNA wobble cytosine modification / tRNA cytidine N4-acetyltransferase activity / rRNA acetylation involved in maturation of SSU-rRNA / 18S rRNA cytidine N-acetyltransferase activity / tRNA acetylation / U4atac snRNP / CURI complex / UTP-C complex / regulation of stem cell population maintenance / t-UTP complex / U4atac snRNA binding / Mpp10 complex / Pwp2p-containing subcomplex of 90S preribosome / negative regulation of amyloid precursor protein biosynthetic process / rRNA (pseudouridine) methyltransferase activity / rRNA modification / pre-snoRNP complex / box C/D sno(s)RNA binding / preribosome / box C/D sno(s)RNA 3'-end processing / endonucleolytic cleavage in 5'-ETS of tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / dense fibrillar component / rRNA methyltransferase activity / endonucleolytic cleavage of tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / regulation of centrosome duplication / histone methyltransferase binding / endonucleolytic cleavage to generate mature 5'-end of SSU-rRNA from (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / regulation of transcription elongation by RNA polymerase II / N-acetyltransferase activity / box C/D methylation guide snoRNP complex / positive regulation of rRNA processing / tRNA export from nucleus / embryonic cleavage / cilium disassembly / rRNA primary transcript binding / transcription elongation factor activity / epigenetic programming in the zygotic pronuclei / spindle assembly involved in female meiosis / rRNA base methylation / RNA splicing, via transesterification reactions / sno(s)RNA-containing ribonucleoprotein complex / blastocyst formation / protein localization to nucleolus / U4 snRNA binding / Cul4-RING E3 ubiquitin ligase complex / SUMOylation of RNA binding proteins / telomerase holoenzyme complex / translation at postsynapse / U2-type precatalytic spliceosome / rRNA methylation / histone H2AQ104 methyltransferase activity / negative regulation of RNA splicing / mammalian oogenesis stage / neural precursor cell proliferation / activation-induced cell death of T cells / neural crest cell differentiation / U3 snoRNA binding / translation at presynapse / Formation of the ternary complex, and subsequently, the 43S complex / erythrocyte homeostasis / rRNA modification in the nucleus and cytosol / cytoplasmic side of rough endoplasmic reticulum membrane / snoRNA binding / precatalytic spliceosome / preribosome, small subunit precursor / negative regulation of ubiquitin protein ligase activity / protein acetylation / NRAGE signals death through JNK / Ribosomal scanning and start codon recognition / Translation initiation complex formation / rRNA metabolic process / positive regulation of transcription by RNA polymerase I / negative regulation of telomere maintenance via telomerase / Association of TriC/CCT with target proteins during biosynthesis / RNA polymerase II complex binding / Protein hydroxylation / TOR signaling / SARS-CoV-1 modulates host translation machinery / TFIID-class transcription factor complex binding / mTORC1-mediated signalling / T cell proliferation involved in immune response / Peptide chain elongation / negative regulation of apoptotic signaling pathway / positive regulation of intrinsic apoptotic signaling pathway by p53 class mediator / Selenocysteine synthesis / decidualization / Formation of a pool of free 40S subunits / ubiquitin ligase inhibitor activity / chromosome, centromeric region / Eukaryotic Translation Termination / Response of EIF2AK4 (GCN2) to amino acid deficiency 類似検索 - 分子機能 | |||||||||
生物種 | ![]() | |||||||||
手法 | 単粒子再構成法 / クライオ電子顕微鏡法 / 解像度: 3.51 Å | |||||||||
![]() | Vanden Broeck A / Singh S / Klinge S | |||||||||
資金援助 | ![]()
| |||||||||
![]() | ![]() タイトル: Nucleolar maturation of the human small subunit processome. 著者: Sameer Singh / Arnaud Vanden Broeck / Linamarie Miller / Malik Chaker-Margot / Sebastian Klinge / ![]() 要旨: The human small subunit processome mediates early maturation of the small ribosomal subunit by coupling RNA folding to subsequent RNA cleavage and processing steps. We report the high-resolution ...The human small subunit processome mediates early maturation of the small ribosomal subunit by coupling RNA folding to subsequent RNA cleavage and processing steps. We report the high-resolution cryo–electron microscopy structures of maturing human small subunit (SSU) processomes at resolutions of 2.7 to 3.9 angstroms. These structures reveal the molecular mechanisms that enable crucial progressions during SSU processome maturation. RNA folding states within these particles are communicated to and coordinated with key enzymes that drive irreversible steps such as targeted exosome-mediated RNA degradation, protein-guided site-specific endonucleolytic RNA cleavage, and tightly controlled RNA unwinding. These conserved mechanisms highlight the SSU processome’s impressive structural plasticity, which endows this 4.5-megadalton nucleolar assembly with the distinctive ability to mature the small ribosomal subunit from within. | |||||||||
履歴 |
|
-
構造の表示
ムービー |
![]() |
---|---|
構造ビューア | EMマップ: ![]() ![]() ![]() |
添付画像 |
-
ダウンロードとリンク
-EMDBアーカイブ
マップデータ | ![]() | 50.7 MB | ![]() | |
---|---|---|---|---|
ヘッダ (付随情報) | ![]() ![]() | 18.1 KB 18.1 KB | 表示 表示 | ![]() |
FSC (解像度算出) | ![]() | 19.8 KB | 表示 | ![]() |
画像 | ![]() | 147.7 KB | ||
マスクデータ | ![]() | 669.9 MB | ![]() | |
その他 | ![]() ![]() ![]() | 625.2 MB 541.8 MB 541.9 MB | ||
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-関連構造データ
関連構造データ | ![]() 7mq8C ![]() 7mq9C ![]() 7mqaC ![]() 7mqjC C: 同じ文献を引用 ( |
---|---|
類似構造データ | |
電子顕微鏡画像生データ | ![]() Data size: 74.6 TB Data #1: Unaligned multi-frame micrograph movies of human SSU processomes - Dataset 1 [micrographs - multiframe] Data #2: Unaligned multi-frame micrograph movies of human SSU processomes - Dataset 2 [micrographs - multiframe] Data #3: Unaligned multi-frame micrograph movies of human SSU processomes - Dataset 3 [micrographs - multiframe] Data #4: Unaligned multi-frame micrograph movies of human SSU processomes - Dataset 4 [micrographs - multiframe] Data #5: Unaligned multi-frame micrograph movies of human SSU processomes - Dataset 5 [micrographs - multiframe] Data #6: Unaligned multi-frame micrograph movies of human SSU processomes - Dataset 6 [micrographs - multiframe] Data #7: Aligned and averaged micrographs of human SSU processomes - Dataset 1 [micrographs - single frame] Data #8: Aligned and averaged micrographs of human SSU processomes - Dataset 2 [micrographs - single frame] Data #9: Aligned and averaged micrographs of human SSU processomes - Dataset 3 [micrographs - single frame] Data #10: Aligned and averaged micrographs of human SSU processomes - Dataset 4 [micrographs - single frame] Data #11: Aligned and averaged micrographs of human SSU processomes - Dataset 5 [micrographs - single frame] Data #12: Aligned and averaged micrographs of human SSU processomes - Dataset 6 [micrographs - single frame]) |
-
リンク
EMDBのページ | ![]() ![]() |
---|---|
「今月の分子」の関連する項目 |
-
マップ
ファイル | ![]() | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
注釈 | Main map | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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: 1.08 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
密度 |
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
対称性 | 空間群: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
詳細 | EMDB XML:
CCP4マップ ヘッダ情報:
|
-添付データ
-マスク #1
ファイル | ![]() | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
投影像・断面図 |
| ||||||||||||
密度ヒストグラム |
-追加マップ: #1
ファイル | emd_23939_additional_1.map | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
投影像・断面図 |
| ||||||||||||
密度ヒストグラム |
-ハーフマップ: Half-Map1
ファイル | emd_23939_half_map_1.map | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
注釈 | Half-Map1 | ||||||||||||
投影像・断面図 |
| ||||||||||||
密度ヒストグラム |
-ハーフマップ: Half-Map2
ファイル | emd_23939_half_map_2.map | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
注釈 | Half-Map2 | ||||||||||||
投影像・断面図 |
| ||||||||||||
密度ヒストグラム |
-
試料の構成要素
-全体 : Human SSU processome, state pre-A1
全体 | 名称: Human SSU processome, state pre-A1 |
---|---|
要素 |
|
-超分子 #1: Human SSU processome, state pre-A1
超分子 | 名称: Human SSU processome, state pre-A1 / タイプ: complex / ID: 1 / 親要素: 0 |
---|---|
由来(天然) | 生物種: ![]() |
分子量 | 理論値: 5 MDa |
-実験情報
-構造解析
手法 | クライオ電子顕微鏡法 |
---|---|
![]() | 単粒子再構成法 |
試料の集合状態 | particle |
-
試料調製
緩衝液 | pH: 7.6 |
---|---|
グリッド | モデル: Quantifoil R2/2 / 材質: GOLD / メッシュ: 400 / 支持フィルム - 材質: CARBON / 支持フィルム - トポロジー: HOLEY / 支持フィルム - Film thickness: 3.0 nm / 前処理 - タイプ: GLOW DISCHARGE |
凍結 | 凍結剤: ETHANE / チャンバー内湿度: 90 % / チャンバー内温度: 283 K / 装置: FEI VITROBOT MARK IV |
-
電子顕微鏡法
顕微鏡 | FEI TITAN KRIOS |
---|---|
特殊光学系 | エネルギーフィルター - スリット幅: 20 eV |
撮影 | フィルム・検出器のモデル: GATAN K3 (6k x 4k) / 実像数: 84904 / 平均電子線量: 58.0 e/Å2 |
電子線 | 加速電圧: 300 kV / 電子線源: ![]() |
電子光学系 | 照射モード: FLOOD BEAM / 撮影モード: BRIGHT FIELD / Cs: 0.01 mm / 最大 デフォーカス(公称値): 2.7 µm 最小 デフォーカス(公称値): 0.7000000000000001 µm |
試料ステージ | 試料ホルダーモデル: FEI TITAN KRIOS AUTOGRID HOLDER |
実験機器 | ![]() モデル: Titan Krios / 画像提供: FEI Company |
+
画像解析
-原子モデル構築 1
精密化 | 空間: REAL |
---|