+データを開く
-基本情報
登録情報 | データベース: EMDB / ID: EMD-4311 | |||||||||
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タイトル | Subtomogram average of ribosome-translocon complexes from STT3A(-/-) HEK cells containing an unidentified ER-lumenal component | |||||||||
マップデータ | Subtomogram average of ribosome-translocon complexes from STT3A(-/-) HEK cells containing an unidentified ER-lumenal component | |||||||||
試料 |
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機能・相同性 | 機能・相同性情報 : / Insertion of tail-anchored proteins into the endoplasmic reticulum membrane / membrane docking / oligosaccharyltransferase complex / endoplasmic reticulum Sec complex / pronephric nephron development / dolichyl-diphosphooligosaccharide-protein glycotransferase / dolichyl-diphosphooligosaccharide-protein glycotransferase activity / protein N-linked glycosylation via asparagine / cotranslational protein targeting to membrane ...: / Insertion of tail-anchored proteins into the endoplasmic reticulum membrane / membrane docking / oligosaccharyltransferase complex / endoplasmic reticulum Sec complex / pronephric nephron development / dolichyl-diphosphooligosaccharide-protein glycotransferase / dolichyl-diphosphooligosaccharide-protein glycotransferase activity / protein N-linked glycosylation via asparagine / cotranslational protein targeting to membrane / Ssh1 translocon complex / Sec61 translocon complex / protein targeting to ER / protein-transporting ATPase activity / protein insertion into ER membrane / SRP-dependent cotranslational protein targeting to membrane, translocation / signal sequence binding / post-translational protein targeting to membrane, translocation / regulation of G1 to G0 transition / exit from mitosis / positive regulation of intrinsic apoptotic signaling pathway in response to DNA damage by p53 class mediator / regulation of translation involved in cellular response to UV / protein-DNA complex disassembly / positive regulation of DNA damage response, signal transduction by p53 class mediator resulting in transcription of p21 class mediator / optic nerve development / retinal ganglion cell axon guidance / G1 to G0 transition / protein glycosylation / positive regulation of signal transduction by p53 class mediator / ubiquitin ligase inhibitor activity / protein transmembrane transporter activity / cellular response to actinomycin D / negative regulation of ubiquitin-dependent protein catabolic process / rough endoplasmic reticulum / maturation of LSU-rRNA / DNA damage response, signal transduction by p53 class mediator resulting in cell cycle arrest / post-translational protein modification / maturation of LSU-rRNA from tricistronic rRNA transcript (SSU-rRNA, 5.8S rRNA, LSU-rRNA) / ribosomal large subunit biogenesis / guanyl-nucleotide exchange factor activity / positive regulation of translation / cellular response to gamma radiation / phospholipid binding / mRNA 5'-UTR binding / transcription coactivator binding / rRNA processing / ribosome biogenesis / ribosome binding / regulation of translation / retina development in camera-type eye / 5S rRNA binding / large ribosomal subunit rRNA binding / ribosomal large subunit assembly / cytoplasmic translation / cytosolic large ribosomal subunit / tRNA binding / protein stabilization / rRNA binding / ribosome / structural constituent of ribosome / ribonucleoprotein complex / translation / mRNA binding / ubiquitin protein ligase binding / positive regulation of cell population proliferation / synapse / endoplasmic reticulum membrane / positive regulation of gene expression / nucleolus / negative regulation of transcription by RNA polymerase II / endoplasmic reticulum / RNA binding / nucleoplasm / nucleus / metal ion binding / cytosol / cytoplasm 類似検索 - 分子機能 | |||||||||
生物種 | Homo sapiens (ヒト) | |||||||||
手法 | サブトモグラム平均法 / クライオ電子顕微鏡法 / 解像度: 30.0 Å | |||||||||
データ登録者 | Pfeffer S / Foerster F | |||||||||
引用 | ジャーナル: Science / 年: 2018 タイトル: Structural basis for coupling protein transport and N-glycosylation at the mammalian endoplasmic reticulum. 著者: Katharina Braunger / Stefan Pfeffer / Shiteshu Shrimal / Reid Gilmore / Otto Berninghausen / Elisabet C Mandon / Thomas Becker / Friedrich Förster / Roland Beckmann / 要旨: Protein synthesis, transport, and N-glycosylation are coupled at the mammalian endoplasmic reticulum by complex formation of a ribosome, the Sec61 protein-conducting channel, and ...Protein synthesis, transport, and N-glycosylation are coupled at the mammalian endoplasmic reticulum by complex formation of a ribosome, the Sec61 protein-conducting channel, and oligosaccharyltransferase (OST). Here we used different cryo-electron microscopy approaches to determine structures of native and solubilized ribosome-Sec61-OST complexes. A molecular model for the catalytic OST subunit STT3A (staurosporine and temperature sensitive 3A) revealed how it is integrated into the OST and how STT3-paralog specificity for translocon-associated OST is achieved. The OST subunit DC2 was placed at the interface between Sec61 and STT3A, where it acts as a versatile module for recruitment of STT3A-containing OST to the ribosome-Sec61 complex. This detailed structural view on the molecular architecture of the cotranslational machinery for N-glycosylation provides the basis for a mechanistic understanding of glycoprotein biogenesis at the endoplasmic reticulum. | |||||||||
履歴 |
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-構造の表示
ムービー |
ムービービューア |
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構造ビューア | EMマップ: SurfViewMolmilJmol/JSmol |
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 | emd_4311.map.gz | 4.7 MB | EMDBマップデータ形式 | |
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ヘッダ (付随情報) | emd-4311-v30.xml emd-4311.xml | 12 KB 12 KB | 表示 表示 | EMDBヘッダ |
画像 | emd_4311.png | 52.7 KB | ||
アーカイブディレクトリ | http://ftp.pdbj.org/pub/emdb/structures/EMD-4311 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-4311 | HTTPS FTP |
-検証レポート
文書・要旨 | emd_4311_validation.pdf.gz | 240.8 KB | 表示 | EMDB検証レポート |
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文書・詳細版 | emd_4311_full_validation.pdf.gz | 239.9 KB | 表示 | |
XML形式データ | emd_4311_validation.xml.gz | 5.5 KB | 表示 | |
アーカイブディレクトリ | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-4311 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-4311 | HTTPS FTP |
-関連構造データ
-リンク
EMDBのページ | EMDB (EBI/PDBe) / EMDataResource |
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「今月の分子」の関連する項目 |
-マップ
ファイル | ダウンロード / ファイル: emd_4311.map.gz / 形式: CCP4 / 大きさ: 5.1 MB / タイプ: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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注釈 | Subtomogram average of ribosome-translocon complexes from STT3A(-/-) HEK cells containing an unidentified ER-lumenal component | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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: 5.24 Å | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
密度 |
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対称性 | 空間群: 1 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
詳細 | EMDB XML:
CCP4マップ ヘッダ情報:
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-添付データ
-試料の構成要素
-全体 : 80S ribosome from STT3A(-/-) HEK cells bound to the endoplasmic r...
全体 | 名称: 80S ribosome from STT3A(-/-) HEK cells bound to the endoplasmic reticulum protein translocon |
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要素 |
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-超分子 #1: 80S ribosome from STT3A(-/-) HEK cells bound to the endoplasmic r...
超分子 | 名称: 80S ribosome from STT3A(-/-) HEK cells bound to the endoplasmic reticulum protein translocon タイプ: complex / ID: 1 / 親要素: 0 |
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由来(天然) | 生物種: Homo sapiens (ヒト) |
-超分子 #2: Protein translocon complex of the endoplasmic reticulum with an u...
超分子 | 名称: Protein translocon complex of the endoplasmic reticulum with an unidentified ER-lumenal component タイプ: complex / ID: 2 / 親要素: 1 |
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由来(天然) | 生物種: Homo sapiens (ヒト) |
-実験情報
-構造解析
手法 | クライオ電子顕微鏡法 |
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解析 | サブトモグラム平均法 |
試料の集合状態 | particle |
-試料調製
緩衝液 | pH: 7.6 |
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凍結 | 凍結剤: ETHANE-PROPANE |
-電子顕微鏡法
顕微鏡 | FEI TITAN KRIOS |
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撮影 | フィルム・検出器のモデル: GATAN K2 SUMMIT (4k x 4k) 検出モード: COUNTING / 平均電子線量: 1.5 e/Å2 |
電子線 | 加速電圧: 300 kV / 電子線源: FIELD EMISSION GUN |
電子光学系 | 照射モード: FLOOD BEAM / 撮影モード: BRIGHT FIELD |
実験機器 | モデル: Titan Krios / 画像提供: FEI Company |
-画像解析
最終 再構成 | 解像度のタイプ: BY AUTHOR / 解像度: 30.0 Å / 解像度の算出法: FSC 0.5 CUT-OFF / 使用したサブトモグラム数: 268 |
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抽出 | トモグラム数: 77 / 使用した粒子像数: 793 / ソフトウェア - 名称: PyTom |
最終 角度割当 | タイプ: NOT APPLICABLE |