+
データを開く
-
基本情報
登録情報 | データベース: PDB / ID: 6oig | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
タイトル | Subunit joining exposes nascent pre-40S rRNA for processing and quality control | ||||||||||||
![]() |
| ||||||||||||
![]() | RIBOSOME / 80S-like complex / 60S | ||||||||||||
機能・相同性 | ![]() regulation of polysaccharide biosynthetic process / transporter complex / cleavage in ITS2 between 5.8S rRNA and LSU-rRNA of tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / response to cycloheximide / lipopolysaccharide transport / SRP-dependent cotranslational protein targeting to membrane / GTP hydrolysis and joining of the 60S ribosomal subunit / Nonsense Mediated Decay (NMD) independent of the Exon Junction Complex (EJC) / Nonsense Mediated Decay (NMD) enhanced by the Exon Junction Complex (EJC) / Formation of a pool of free 40S subunits ...regulation of polysaccharide biosynthetic process / transporter complex / cleavage in ITS2 between 5.8S rRNA and LSU-rRNA of tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / response to cycloheximide / lipopolysaccharide transport / SRP-dependent cotranslational protein targeting to membrane / GTP hydrolysis and joining of the 60S ribosomal subunit / Nonsense Mediated Decay (NMD) independent of the Exon Junction Complex (EJC) / Nonsense Mediated Decay (NMD) enhanced by the Exon Junction Complex (EJC) / Formation of a pool of free 40S subunits / preribosome, large subunit precursor / L13a-mediated translational silencing of Ceruloplasmin expression / Gram-negative-bacterium-type cell outer membrane assembly / ribosomal large subunit export from nucleus / translational elongation / 90S preribosome / regulation of translational fidelity / protein-RNA complex assembly / maturation of LSU-rRNA / translational termination / maturation of LSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / ribosomal large subunit biogenesis / macroautophagy / translational initiation / modification-dependent protein catabolic process / protein tag activity / maintenance of translational fidelity / cell outer membrane / rRNA processing / ribosome biogenesis / 5S rRNA binding / ribosomal large subunit assembly / large ribosomal subunit rRNA binding / cytosolic large ribosomal subunit / cytoplasmic translation / protein ubiquitination / negative regulation of translation / rRNA binding / structural constituent of ribosome / ribosome / translation / response to antibiotic / mRNA binding / ubiquitin protein ligase binding / nucleolus / RNA binding / zinc ion binding / nucleus / 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 | ||||||||||||
![]() | Rai, J. / Parker, M.D. / Ghalei, H. / Johnson, M.C. / Karbstein, K. / Stroupe, M.E. | ||||||||||||
資金援助 | ![]()
| ||||||||||||
![]() | ![]() タイトル: An open interface in the pre-80S ribosome coordinated by ribosome assembly factors Tsr1 and Dim1 enables temporal regulation of Fap7. 著者: Jay Rai / Melissa D Parker / Haina Huang / Stefan Choy / Homa Ghalei / Matthew C Johnson / Katrin Karbstein / M Elizabeth Stroupe / ![]() 要旨: During their maturation, nascent 40S subunits enter a translation-like quality control cycle, where they are joined by mature 60S subunits to form 80S-like ribosomes. While these assembly ...During their maturation, nascent 40S subunits enter a translation-like quality control cycle, where they are joined by mature 60S subunits to form 80S-like ribosomes. While these assembly intermediates are essential for maturation and quality control, how they form, and how their structure promotes quality control, remains unknown. To address these questions, we determined the structure of an 80S-like ribosome assembly intermediate to an overall resolution of 3.4 Å. The structure, validated by biochemical data, resolves a large body of previously paradoxical data and illustrates how assembly and translation factors cooperate to promote the formation of an interface that lacks many mature subunit contacts but is stabilized by the universally conserved methyltransferase Dim1. We also show how Tsr1 enables this interface by blocking the canonical binding of eIF5B to 40S subunits, while maintaining its binding to 60S. The structure also shows how this interface leads to unfolding of the platform, which allows for temporal regulation of the ATPase Fap7, thus linking 40S maturation to quality control during ribosome assembly. | ||||||||||||
履歴 |
|
-
構造の表示
ムービー |
![]() |
---|---|
構造ビューア | 分子: ![]() ![]() |
-
ダウンロードとリンク
-
ダウンロード
PDBx/mmCIF形式 | ![]() | 2.9 MB | 表示 | ![]() |
---|---|---|---|---|
PDB形式 | ![]() | 表示 | ![]() | |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
-検証レポート
文書・要旨 | ![]() | 1.1 MB | 表示 | ![]() |
---|---|---|---|---|
文書・詳細版 | ![]() | 1.4 MB | 表示 | |
XML形式データ | ![]() | 228.5 KB | 表示 | |
CIF形式データ | ![]() | 390.1 KB | 表示 | |
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
-関連構造データ
-
リンク
-
集合体
登録構造単位 | ![]()
|
---|---|
1 |
|
-
要素
+60S ribosomal protein ... , 41種, 41分子 zABCDEFGHIJsLMNOPQRSTUVWXYZabc...
-タンパク質 , 2種, 2分子 mq
#40: タンパク質 | 分子量: 6032.321 Da / 分子数: 1 / 由来タイプ: 組換発現 由来: (組換発現) ![]() ![]() 遺伝子: RPL40A, UBI1, YIL148W / 発現宿主: ![]() ![]() |
---|---|
#43: タンパク質 | 分子量: 23585.346 Da / 分子数: 1 / 由来タイプ: 組換発現 由来: (組換発現) ![]() ![]() 遺伝子: RPP0, L10E, RPA0, RPL10E, RPLA0, YLR340W, L8300.8 発現宿主: ![]() ![]() |
-RNA鎖 , 3種, 3分子 587
#44: RNA鎖 | 分子量: 1096842.375 Da / 分子数: 1 / 由来タイプ: 組換発現 由来: (組換発現) ![]() ![]() 発現宿主: ![]() ![]() |
---|---|
#45: RNA鎖 | 分子量: 50682.922 Da / 分子数: 1 / 由来タイプ: 組換発現 由来: (組換発現) ![]() ![]() 発現宿主: ![]() ![]() |
#46: RNA鎖 | 分子量: 38951.105 Da / 分子数: 1 / 由来タイプ: 組換発現 由来: (組換発現) ![]() ![]() 発現宿主: ![]() ![]() |
-タンパク質・ペプチド , 2種, 2分子 xy
#47: タンパク質・ペプチド | 分子量: 4017.944 Da / 分子数: 1 / 由来タイプ: 組換発現 由来: (組換発現) ![]() ![]() 発現宿主: ![]() ![]() |
---|---|
#48: タンパク質・ペプチド | 分子量: 3932.839 Da / 分子数: 1 / 由来タイプ: 組換発現 由来: (組換発現) ![]() ![]() 発現宿主: ![]() ![]() |
-実験情報
-実験
実験 | 手法: 電子顕微鏡法 |
---|---|
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: 60S subunit of 80S-like ribosome / タイプ: RIBOSOME / Entity ID: all / 由来: RECOMBINANT |
---|---|
由来(天然) | 生物種: ![]() ![]() |
由来(組換発現) | 生物種: ![]() ![]() |
緩衝液 | pH: 6.8 |
試料 | 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES |
試料支持 | 詳細: unspecified |
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 |
---|---|
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: 25 e/Å2 / 検出モード: COUNTING フィルム・検出器のモデル: DIRECT ELECTRON DE-64 (8k x 8k) |
-
解析
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: 83558 / 対称性のタイプ: POINT |