- EMDB-10176: mt-SSU assemblosome of wild-type Trypanosoma brucei brucei -
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基本情報
登録情報
データベース: EMDB / ID: EMD-10176
タイトル
mt-SSU assemblosome of wild-type Trypanosoma brucei brucei
マップデータ
mt-SSU assemblosome of wild-type Trypanosoma brucei brucei
試料
複合体: wild-type mt-SSU assemblosome
機能・相同性
機能・相同性情報
modulation of formation of structure involved in a symbiotic process / rRNA (cytosine-N4-)-methyltransferase activity / mitochondrial mRNA editing complex / mitochondrial RNA processing / ATP-activated inward rectifier potassium channel activity / kinetoplast / thiosulfate-cyanide sulfurtransferase activity / quorum sensing / response to arsenic-containing substance / rRNA base methylation ...modulation of formation of structure involved in a symbiotic process / rRNA (cytosine-N4-)-methyltransferase activity / mitochondrial mRNA editing complex / mitochondrial RNA processing / ATP-activated inward rectifier potassium channel activity / kinetoplast / thiosulfate-cyanide sulfurtransferase activity / quorum sensing / response to arsenic-containing substance / rRNA base methylation / ciliary plasm / nuclear lumen / mRNA stabilization / mitochondrial small ribosomal subunit / acyl binding / acyl carrier activity / iron-sulfur cluster binding / voltage-gated potassium channel activity / voltage-gated potassium channel complex / 転移酵素; 一炭素原子の基を移すもの; メチル基を移すもの / methyltransferase activity / protein homooligomerization / potassium ion transport / fatty acid biosynthetic process / structural constituent of ribosome / mitochondrial matrix / translation / mRNA binding / mitochondrion / RNA binding / metal ion binding / membrane / cytosol / cytoplasm 類似検索 - 分子機能
T-cell activation inhibitor, mitochondrial / Domain of unknown function DUF4460 / Domain of unknown function (DUF4460) / Mitochondrial glycoprotein / Mitochondrial glycoprotein superfamily / Mitochondrial glycoprotein / Probable Zinc-ribbon domain / Probable Treble clef zinc finger domain / Ribosomal protein Rsm22-like / : ...T-cell activation inhibitor, mitochondrial / Domain of unknown function DUF4460 / Domain of unknown function (DUF4460) / Mitochondrial glycoprotein / Mitochondrial glycoprotein superfamily / Mitochondrial glycoprotein / Probable Zinc-ribbon domain / Probable Treble clef zinc finger domain / Ribosomal protein Rsm22-like / : / Mitochondrial small ribosomal subunit Rsm22 / Ribosomal RNA small subunit methyltransferase H / S-adenosyl-L-methionine-dependent methyltransferase, MraW, recognition domain superfamily / MraW methylase family / Small ribosomal subunit protein mS41 SAM domain / Protein Fyv4 / IGR protein motif / IGR / Phosphotyrosine protein phosphatase I / Phosphotyrosine protein phosphatase I superfamily / Low molecular weight phosphotyrosine protein phosphatase / Low molecular weight phosphatase family / Pentatricopeptide repeat domain / Potassium channel tetramerisation-type BTB domain / BTB/POZ domain / Pentatricopeptide (PPR) repeat profile. / Ribosomal protein S23/S29, mitochondrial / Mitochondrial ribosomal death-associated protein 3 / Pentatricopeptide repeat / Rhodanese-like domain / Rhodanese domain profile. / Rhodanese-like domain superfamily / Rhodanese-like domain / Acyl carrier protein (ACP) / Phosphopantetheine attachment site / SKP1/BTB/POZ domain superfamily / Phosphopantetheine attachment site. / Phosphopantetheine attachment site / ACP-like superfamily / Carrier protein (CP) domain profile. / Phosphopantetheine binding ACP domain / Translation elongation factor EF1B/ribosomal protein S6 / Tetratricopeptide-like helical domain superfamily / Ribosomal protein S9 / Ribosomal protein S9/S16 / Ribosomal protein S11 superfamily / S15/NS1, RNA-binding / Thioredoxin-like superfamily / Ribosomal protein S5 domain 2-type fold, subgroup / Ribosomal protein S5 domain 2-type fold / S-adenosyl-L-methionine-dependent methyltransferase superfamily 類似検索 - ドメイン・相同性
Uncharacterized protein / Uncharacterized protein / Uncharacterized protein / Methyltransferase / Mitochondrial SSU ribosomal protein / Uncharacterized protein / Mitochondrial SSU ribosomal protein / Uncharacterized protein / Potassium voltage-gated channel, putative / Uncharacterized protein ...Uncharacterized protein / Uncharacterized protein / Uncharacterized protein / Methyltransferase / Mitochondrial SSU ribosomal protein / Uncharacterized protein / Mitochondrial SSU ribosomal protein / Uncharacterized protein / Potassium voltage-gated channel, putative / Uncharacterized protein / Small ribosomal subunit protein mS41 / Uncharacterized protein / Uncharacterized protein / Uncharacterized protein / Uncharacterized protein / Uncharacterized protein / Target SNARE / Phosphotyrosine protein phosphatase I domain-containing protein / DUF4460 domain-containing protein / Uncharacterized protein / Uncharacterized protein / Pentacotripeptide-repeat region of PRORP domain-containing protein / Uncharacterized protein / Uncharacterized protein / Glutaredoxin domain-containing protein / S-adenosyl-methyltransferase mraW-like protein, putative / Ribosomal protein S9 / Uncharacterized protein / Acyl carrier protein / Mitochondrial glycoprotein-like protein / Uncharacterized protein / Pentacotripeptide-repeat region of PRORP domain-containing protein / Uncharacterized protein / Treble clef zinc finger domain-containing protein / Succinate dehydrogenase assembly factor 3, mitochondrial / Uncharacterized protein / Uncharacterized protein / Small ribosomal subunit protein mS29 / Rhodanese domain-containing protein / Uncharacterized protein 類似検索 - 構成要素
ジャーナル: Science / 年: 2019 タイトル: Mitoribosomal small subunit biogenesis in trypanosomes involves an extensive assembly machinery. 著者: Martin Saurer / David J F Ramrath / Moritz Niemann / Salvatore Calderaro / Céline Prange / Simone Mattei / Alain Scaiola / Alexander Leitner / Philipp Bieri / Elke K Horn / Marc Leibundgut / ...著者: Martin Saurer / David J F Ramrath / Moritz Niemann / Salvatore Calderaro / Céline Prange / Simone Mattei / Alain Scaiola / Alexander Leitner / Philipp Bieri / Elke K Horn / Marc Leibundgut / Daniel Boehringer / André Schneider / Nenad Ban / 要旨: Mitochondrial ribosomes (mitoribosomes) are large ribonucleoprotein complexes that synthesize proteins encoded by the mitochondrial genome. An extensive cellular machinery responsible for ribosome ...Mitochondrial ribosomes (mitoribosomes) are large ribonucleoprotein complexes that synthesize proteins encoded by the mitochondrial genome. An extensive cellular machinery responsible for ribosome assembly has been described only for eukaryotic cytosolic ribosomes. Here we report that the assembly of the small mitoribosomal subunit in involves a large number of factors and proceeds through the formation of assembly intermediates, which we analyzed by using cryo-electron microscopy. One of them is a 4-megadalton complex, referred to as the small subunit assemblosome, in which we identified 34 factors that interact with immature ribosomal RNA (rRNA) and recognize its functionally important regions. The assembly proceeds through large-scale conformational changes in rRNA coupled with successive incorporation of mitoribosomal proteins, providing an example for the complexity of the ribosomal assembly process in mitochondria.
凍結剤: ETHANE-PROPANE / チャンバー内湿度: 100 % / チャンバー内温度: 277 K / 装置: FEI VITROBOT MARK IV
詳細
Mitochondrial ribosomal small subunit assemblosome of wild-type Trypanosoma brucei brucei Lister strain 427
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電子顕微鏡法
顕微鏡
FEI TITAN KRIOS
撮影
フィルム・検出器のモデル: FEI FALCON III (4k x 4k) 検出モード: INTEGRATING / デジタル化 - サンプリング間隔: 14.0 µm / 撮影したグリッド数: 1 / 実像数: 13503 / 平均露光時間: 1.5 sec. / 平均電子線量: 75.0 e/Å2 詳細: Images were collected in movie-mode at 40 frames per second
タイプ: MAXIMUM LIKELIHOOD / ソフトウェア - 名称: RELION (ver. 3.0.5)
最終 角度割当
タイプ: MAXIMUM LIKELIHOOD / ソフトウェア - 名称: RELION (ver. 3.0.5)
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原子モデル構築 1
詳細
Starting models of ribosomal proteins of the T. brucei mitochondrial ribosomal small subunit were taken from PDB 6HIW. Mitchondrial ribosomal small subunit assembly factors were built de novo.