+データを開く
-基本情報
登録情報 | データベース: PDB / ID: 6qkl | ||||||||||||
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タイトル | Mechanism of eIF6 release from the nascent 60S ribosomal subunit | ||||||||||||
要素 |
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キーワード | RIBOSOME (リボソーム) / 60S subunit / eIF6 / SBDS / uL16 | ||||||||||||
機能・相同性 | 機能・相同性情報 L13a-mediated translational silencing of Ceruloplasmin expression / APC/C:Cdc20 mediated degradation of Cyclin B / Autodegradation of Cdh1 by Cdh1:APC/C / APC/C:Cdc20 mediated degradation of Securin / APC/C:Cdh1 mediated degradation of Cdc20 and other APC/C:Cdh1 targeted proteins in late mitosis/early G1 / Cdc20:Phospho-APC/C mediated degradation of Cyclin A / APC-Cdc20 mediated degradation of Nek2A / SRP-dependent cotranslational protein targeting to membrane / Separation of Sister Chromatids / Senescence-Associated Secretory Phenotype (SASP) ...L13a-mediated translational silencing of Ceruloplasmin expression / APC/C:Cdc20 mediated degradation of Cyclin B / Autodegradation of Cdh1 by Cdh1:APC/C / APC/C:Cdc20 mediated degradation of Securin / APC/C:Cdh1 mediated degradation of Cdc20 and other APC/C:Cdh1 targeted proteins in late mitosis/early G1 / Cdc20:Phospho-APC/C mediated degradation of Cyclin A / APC-Cdc20 mediated degradation of Nek2A / SRP-dependent cotranslational protein targeting to membrane / Separation of Sister Chromatids / Senescence-Associated Secretory Phenotype (SASP) / Autodegradation of the E3 ubiquitin ligase COP1 / activated TAK1 mediates p38 MAPK activation / JNK (c-Jun kinases) phosphorylation and activation mediated by activated human TAK1 / N-glycan trimming in the ER and Calnexin/Calreticulin cycle / Hedgehog ligand biogenesis / Negative regulation of MAPK pathway / Regulation of necroptotic cell death / MAPK6/MAPK4 signaling / UCH proteinases / Josephin domain DUBs / Ub-specific processing proteases / Metalloprotease DUBs / DNA Damage Recognition in GG-NER / Formation of Incision Complex in GG-NER / Formation of TC-NER Pre-Incision Complex / Dual incision in TC-NER / Gap-filling DNA repair synthesis and ligation in TC-NER / Major pathway of rRNA processing in the nucleolus and cytosol / CDK-mediated phosphorylation and removal of Cdc6 / Ubiquitin Mediated Degradation of Phosphorylated Cdc25A / Formation of a pool of free 40S subunits / Formation of the ternary complex, and subsequently, the 43S complex / Ribosomal scanning and start codon recognition / GTP hydrolysis and joining of the 60S ribosomal subunit / : / Synthesis of active ubiquitin: roles of E1 and E2 enzymes / E3 ubiquitin ligases ubiquitinate target proteins / Regulation of PTEN localization / Regulation of PTEN stability and activity / ER Quality Control Compartment (ERQC) / Interleukin-1 signaling / Peroxisomal protein import / Endosomal Sorting Complex Required For Transport (ESCRT) / Negative regulators of DDX58/IFIH1 signaling / : / : / Aggrephagy / Pexophagy / : / KEAP1-NFE2L2 pathway / Regulation of NF-kappa B signaling / Nonsense Mediated Decay (NMD) independent of the Exon Junction Complex (EJC) / Nonsense Mediated Decay (NMD) enhanced by the Exon Junction Complex (EJC) / : / Orc1 removal from chromatin / Cyclin D associated events in G1 / FBXL7 down-regulates AURKA during mitotic entry and in early mitosis / Neddylation / Iron uptake and transport / Antigen processing: Ubiquitination & Proteasome degradation / leukocyte chemotaxis / bone marrow development / inner cell mass cell proliferation / maturation of 5.8S rRNA / ribosomal subunit export from nucleus / bone mineralization / ribosomal large subunit binding / preribosome, large subunit precursor / hematopoietic progenitor cell differentiation / phagocytic vesicle / maturation of LSU-rRNA / ribosomal large subunit biogenesis / 細胞外マトリックス / translation initiation factor activity / lipid droplet / assembly of large subunit precursor of preribosome / mitotic spindle organization / cytosolic ribosome assembly / modification-dependent protein catabolic process / protein tag activity / rRNA processing / 紡錘体 / large ribosomal subunit rRNA binding / ribosome binding / large ribosomal subunit / リボソーム生合成 / cytoplasmic translation / cytosolic large ribosomal subunit / microtubule binding / rRNA binding / protein ubiquitination / structural constituent of ribosome / 翻訳 (生物学) / mRNA binding / ubiquitin protein ligase binding / 核小体 / RNA binding / 核質 / 細胞核 / 細胞質基質 類似検索 - 分子機能 | ||||||||||||
生物種 | Homo sapiens (ヒト) Dictyostelium discoideum (キイロタマホコリカビ) | ||||||||||||
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: 3.3 Å | ||||||||||||
データ登録者 | Kargas, V. / Warren, A.J. | ||||||||||||
資金援助 | 英国, 3件
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引用 | ジャーナル: Nat Struct Mol Biol / 年: 2015 タイトル: Mechanism of eIF6 release from the nascent 60S ribosomal subunit. 著者: Félix Weis / Emmanuel Giudice / Mark Churcher / Li Jin / Christine Hilcenko / Chi C Wong / David Traynor / Robert R Kay / Alan J Warren / 要旨: SBDS protein (deficient in the inherited leukemia-predisposition disorder Shwachman-Diamond syndrome) and the GTPase EFL1 (an EF-G homolog) activate nascent 60S ribosomal subunits for translation by ...SBDS protein (deficient in the inherited leukemia-predisposition disorder Shwachman-Diamond syndrome) and the GTPase EFL1 (an EF-G homolog) activate nascent 60S ribosomal subunits for translation by catalyzing eviction of the antiassociation factor eIF6 from nascent 60S ribosomal subunits. However, the mechanism is completely unknown. Here, we present cryo-EM structures of human SBDS and SBDS-EFL1 bound to Dictyostelium discoideum 60S ribosomal subunits with and without endogenous eIF6. SBDS assesses the integrity of the peptidyl (P) site, bridging uL16 (mutated in T-cell acute lymphoblastic leukemia) with uL11 at the P-stalk base and the sarcin-ricin loop. Upon EFL1 binding, SBDS is repositioned around helix 69, thus facilitating a conformational switch in EFL1 that displaces eIF6 by competing for an overlapping binding site on the 60S ribosomal subunit. Our data reveal the conserved mechanism of eIF6 release, which is corrupted in both inherited and sporadic leukemias. | ||||||||||||
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 | 分子: MolmilJmol/JSmol |
-ダウンロードとリンク
-ダウンロード
PDBx/mmCIF形式 | 6qkl.cif.gz | 924.1 KB | 表示 | PDBx/mmCIF形式 |
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PDB形式 | pdb6qkl.ent.gz | 703.1 KB | 表示 | PDB形式 |
PDBx/mmJSON形式 | 6qkl.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/qk/6qkl ftp://data.pdbj.org/pub/pdb/validation_reports/qk/6qkl | HTTPS FTP |
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-関連構造データ
-リンク
-集合体
登録構造単位 |
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1 |
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-要素
-RNA鎖 , 1種, 1分子 N
#1: RNA鎖 | 分子量: 1205997.750 Da / 分子数: 1 / 由来タイプ: 天然 由来: (天然) Dictyostelium discoideum (キイロタマホコリカビ) |
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-60S ribosomal protein ... , 6種, 6分子 ABEFGD
#2: タンパク質 | 分子量: 45158.758 Da / 分子数: 1 / 由来タイプ: 天然 由来: (天然) Dictyostelium discoideum (キイロタマホコリカビ) 参照: UniProt: P34113 |
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#3: タンパク質 | 分子量: 21250.656 Da / 分子数: 1 / 由来タイプ: 天然 由来: (天然) Dictyostelium discoideum (キイロタマホコリカビ) 参照: UniProt: Q54XI5 |
#4: タンパク質 | 分子量: 14567.147 Da / 分子数: 1 / 由来タイプ: 天然 由来: (天然) Dictyostelium discoideum (キイロタマホコリカビ) 参照: UniProt: Q54G86 |
#5: タンパク質 | 分子量: 24591.754 Da / 分子数: 1 / 由来タイプ: 天然 由来: (天然) Dictyostelium discoideum (キイロタマホコリカビ) 参照: UniProt: Q54J69 |
#6: タンパク質 | 分子量: 8334.771 Da / 分子数: 1 / 由来タイプ: 天然 由来: (天然) Dictyostelium discoideum (キイロタマホコリカビ) 参照: UniProt: Q54VN6 |
#11: タンパク質 | 分子量: 17811.031 Da / 分子数: 1 / 由来タイプ: 天然 由来: (天然) Dictyostelium discoideum (キイロタマホコリカビ) 参照: UniProt: Q54J50 |
-タンパク質 , 4種, 4分子 HIJC
#7: タンパク質 | 分子量: 6170.682 Da / 分子数: 1 / 由来タイプ: 天然 由来: (天然) Dictyostelium discoideum (キイロタマホコリカビ) 参照: UniProt: P14794 |
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#8: タンパク質 | 分子量: 24107.266 Da / 分子数: 1 / 由来タイプ: 天然 由来: (天然) Dictyostelium discoideum (キイロタマホコリカビ) 参照: UniProt: Q551M2 |
#9: タンパク質 | 分子量: 28813.602 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) Homo sapiens (ヒト) / 遺伝子: SBDS, CGI-97 / 発現宿主: Escherichia coli (大腸菌) / 参照: UniProt: Q9Y3A5 |
#10: タンパク質 | 分子量: 22434.189 Da / 分子数: 1 / 由来タイプ: 天然 由来: (天然) Dictyostelium discoideum (キイロタマホコリカビ) 参照: UniProt: P22685 |
-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 |
-試料調製
構成要素 | 名称: DICTYOSTELIUM 60S CARRYING ENDOGENOUS EIF6 WITH RECOMBINANT HUMAN SBDS タイプ: RIBOSOME / Entity ID: all / 由来: MULTIPLE SOURCES |
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緩衝液 | pH: 7.5 |
試料 | 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES |
急速凍結 | 装置: FEI VITROBOT MARK III / 凍結剤: ETHANE / 湿度: 100 % / 凍結前の試料温度: 120 K / 詳細: 1 BLOT 6.5S |
-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 FIELDBright-field microscopy / 倍率(公称値): 59000 X / 最大 デフォーカス(公称値): 2800 nm / 最小 デフォーカス(公称値): 2200 nm |
試料ホルダ | 凍結剤: NITROGEN |
撮影 | 電子線照射量: 30 e/Å2 フィルム・検出器のモデル: FEI FALCON II (4k x 4k) |
-解析
EMソフトウェア |
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CTF補正 | タイプ: NONE | ||||||||||||
対称性 | 点対称性: C1 (非対称) | ||||||||||||
3次元再構成 | 解像度: 3.3 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 43063 / 対称性のタイプ: POINT |