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データを開く
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基本情報
登録情報 | データベース: PDB / ID: 8rr4 | ||||||||||||||||||
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タイトル | Human mitochondrial RNase Z complex with ELAC2-D550N catalytic mutant with ordered flexible arm and tRNA-Tyr precursor - (Composite model) | ||||||||||||||||||
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![]() | RNA BINDING PROTEIN / tRNA processing / RNase Z / endonuclease / mitochondrial | ||||||||||||||||||
機能・相同性 | ![]() tRNase Z / brexanolone metabolic process / isoursodeoxycholate 7-beta-dehydrogenase (NAD+) activity / ursodeoxycholate 7-beta-dehydrogenase (NAD+) activity / 3-hydroxy-2-methylbutyryl-CoA dehydrogenase / 3-hydroxy-2-methylbutyryl-CoA dehydrogenase activity / mitochondrial tRNA methylation / tRNA (adenine9-N1)-methyltransferase / mitochondrial RNA 5'-end processing / mitochondrial tRNA processing ...tRNase Z / brexanolone metabolic process / isoursodeoxycholate 7-beta-dehydrogenase (NAD+) activity / ursodeoxycholate 7-beta-dehydrogenase (NAD+) activity / 3-hydroxy-2-methylbutyryl-CoA dehydrogenase / 3-hydroxy-2-methylbutyryl-CoA dehydrogenase activity / mitochondrial tRNA methylation / tRNA (adenine9-N1)-methyltransferase / mitochondrial RNA 5'-end processing / mitochondrial tRNA processing / tRNA (adenine(9)-N1)-methyltransferase activity / tRNA (guanine9-N1)-methyltransferase / mitochondrial ribonuclease P complex / tRNA (guanosine(9)-N1)-methyltransferase activity / mitochondrial tRNA 5'-end processing / chenodeoxycholate 7-alpha-dehydrogenase (NAD+) activity / tRNA modification in the mitochondrion / rRNA processing in the mitochondrion / tRNA processing in the mitochondrion / mitochondrial tRNA 3'-end processing / 7alpha-hydroxysteroid dehydrogenase / 17-beta-hydroxysteroid dehydrogenase (NAD+) activity / cholate 7-alpha-dehydrogenase (NAD+) activity / C21-steroid hormone metabolic process / 3'-tRNA processing endoribonuclease activity / tRNA methyltransferase complex / tRNA 3'-end processing / 3-hydroxyacyl-CoA dehydrogenase / tRNA-specific ribonuclease activity / L-isoleucine catabolic process / 3alpha(17beta)-hydroxysteroid dehydrogenase (NAD+) / tRNA-derived small RNA (tsRNA or tRNA-related fragment, tRF) biogenesis / 3-hydroxyacyl-CoA dehydrogenase (NAD+) activity / tRNA decay / : / 3alpha(or 20beta)-hydroxysteroid dehydrogenase / androstan-3-alpha,17-beta-diol dehydrogenase (NAD+) activity / testosterone dehydrogenase (NAD+) activity / bile acid biosynthetic process / positive regulation of mitochondrial translation / 17beta-estradiol 17-dehydrogenase / estradiol 17-beta-dehydrogenase [NAD(P)+] activity / Branched-chain amino acid catabolism / tRNA processing in the nucleus / estrogen metabolic process / fatty acid beta-oxidation / mitochondrial nucleoid / androgen metabolic process / Mitochondrial protein degradation / RNA endonuclease activity / 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 / fatty acid metabolic process / mitochondrion organization / lipid metabolic process / mRNA processing / protein homotetramerization / tRNA binding / mitochondrial matrix / mitochondrion / RNA binding / nucleoplasm / metal ion binding / identical protein binding / nucleus / plasma membrane / 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: 3.2 Å | ||||||||||||||||||
![]() | Bhatta, A. / Yu, R.D. / Kuhle, B. / Hillen, H.S. | ||||||||||||||||||
資金援助 | ![]()
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![]() | ![]() タイトル: Molecular basis of human nuclear and mitochondrial tRNA 3' processing. 著者: Arjun Bhatta / Bernhard Kuhle / Ryan D Yu / Lucas Spanaus / Katja Ditter / Katherine E Bohnsack / Hauke S Hillen / ![]() 要旨: Eukaryotic transfer RNA (tRNA) precursors undergo sequential processing steps to become mature tRNAs. In humans, ELAC2 carries out 3' end processing of both nucleus-encoded (nu-tRNAs) and ...Eukaryotic transfer RNA (tRNA) precursors undergo sequential processing steps to become mature tRNAs. In humans, ELAC2 carries out 3' end processing of both nucleus-encoded (nu-tRNAs) and mitochondria-encoded (mt-tRNAs) tRNAs. ELAC2 is self-sufficient for processing of nu-tRNAs but requires TRMT10C and SDR5C1 to process most mt-tRNAs. Here we show that TRMT10C and SDR5C1 specifically facilitate processing of structurally degenerate mt-tRNAs lacking the canonical elbow. Structures of ELAC2 in complex with TRMT10C, SDR5C1 and two divergent mt-tRNA substrates reveal two distinct mechanisms of pre-tRNA recognition. While canonical nu-tRNAs and mt-tRNAs are recognized by direct ELAC2-RNA interactions, processing of noncanonical mt-tRNAs depends on protein-protein interactions between ELAC2 and TRMT10C. These results provide the molecular basis for tRNA 3' processing in both the nucleus and the mitochondria and explain the organelle-specific requirement for additional factors. Moreover, they suggest that TRMT10C-SDR5C1 evolved as a mitochondrial tRNA maturation platform to compensate for the structural erosion of mt-tRNAs in bilaterian animals. | ||||||||||||||||||
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構造の表示
構造ビューア | 分子: ![]() ![]() |
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ダウンロードとリンク
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ダウンロード
PDBx/mmCIF形式 | ![]() | 377.7 KB | 表示 | ![]() |
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PDB形式 | ![]() | 299.5 KB | 表示 | ![]() |
PDBx/mmJSON形式 | ![]() | ツリー表示 | ![]() | |
その他 | ![]() |
-検証レポート
アーカイブディレクトリ | ![]() ![]() | HTTPS FTP |
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-関連構造データ
関連構造データ | ![]() 19457MC ![]() 8rr1C ![]() 8rr3C M: このデータのモデリングに利用したマップデータ C: 同じ文献を引用 ( |
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類似構造データ | 類似検索 - 機能・相同性 ![]() |
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リンク
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集合体
登録構造単位 | ![]()
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要素
-タンパク質 , 3種, 6分子 ABCDEF
#1: タンパク質 | 分子量: 26947.021 Da / 分子数: 4 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() 遺伝子: HSD17B10, ERAB, HADH2, MRPP2, SCHAD, SDR5C1, XH98G2 発現宿主: ![]() ![]() 参照: UniProt: Q99714, 3-hydroxyacyl-CoA dehydrogenase, 17beta-estradiol 17-dehydrogenase, 3alpha(17beta)-hydroxysteroid dehydrogenase (NAD+), 3-hydroxy-2-methylbutyryl-CoA dehydrogenase, 3alpha(or ...参照: UniProt: Q99714, 3-hydroxyacyl-CoA dehydrogenase, 17beta-estradiol 17-dehydrogenase, 3alpha(17beta)-hydroxysteroid dehydrogenase (NAD+), 3-hydroxy-2-methylbutyryl-CoA dehydrogenase, 3alpha(or 20beta)-hydroxysteroid dehydrogenase, 7alpha-hydroxysteroid dehydrogenase #2: タンパク質 | | 分子量: 89169.336 Da / 分子数: 1 / Mutation: D550N / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() #3: タンパク質 | | 分子量: 37165.094 Da / 分子数: 1 / 由来タイプ: 組換発現 / 由来: (組換発現) ![]() ![]() ![]() 参照: UniProt: Q7L0Y3, 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, tRNA (adenine9-N1)-methyltransferase, tRNA (guanine9-N1)-methyltransferase |
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-RNA鎖 , 1種, 1分子 T
#4: RNA鎖 | 分子量: 29023.184 Da / 分子数: 1 / 由来タイプ: 合成 / 由来: (合成) ![]() |
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-非ポリマー , 2種, 3分子 


#5: 化合物 | #6: 化合物 | ChemComp-SAH / | |
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-詳細
研究の焦点であるリガンドがあるか | Y |
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Has protein modification | N |
-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 |
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試料調製
構成要素 | 名称: Human mitochondrial RNase Z complex with tRNA-Tyr precursor タイプ: COMPLEX / Entity ID: #1-#4 / 由来: RECOMBINANT | |||||||||||||||||||||||||
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分子量 |
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由来(天然) | 生物種: ![]() | |||||||||||||||||||||||||
由来(組換発現) | 生物種: ![]() ![]() | |||||||||||||||||||||||||
緩衝液 | pH: 7.5 | |||||||||||||||||||||||||
緩衝液成分 |
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試料 | 包埋: NO / シャドウイング: NO / 染色: NO / 凍結: YES | |||||||||||||||||||||||||
試料支持 | グリッドの材料: COPPER / グリッドのサイズ: 200 divisions/in. / グリッドのタイプ: Quantifoil R2/1 | |||||||||||||||||||||||||
急速凍結 | 装置: FEI VITROBOT MARK IV / 凍結剤: ETHANE / 湿度: 95 % / 凍結前の試料温度: 277 K |
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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: ![]() |
電子レンズ | モード: BRIGHT FIELD / 倍率(公称値): 105000 X / 最大 デフォーカス(公称値): 2500 nm / 最小 デフォーカス(公称値): 500 nm |
撮影 | 電子線照射量: 40 e/Å2 / フィルム・検出器のモデル: GATAN K3 (6k x 4k) |
画像スキャン | 横: 5760 / 縦: 4092 |
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解析
EMソフトウェア |
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CTF補正 | タイプ: PHASE FLIPPING AND AMPLITUDE CORRECTION | ||||||||||||||||||||||||||||||||||||||||||||||||
粒子像の選択 | 選択した粒子像数: 5987454 / 詳細: Particles picked by neural net based picker in Warp | ||||||||||||||||||||||||||||||||||||||||||||||||
3次元再構成 | 解像度: 3.2 Å / 解像度の算出法: FSC 0.143 CUT-OFF / 粒子像の数: 28023 / アルゴリズム: FOURIER SPACE / 対称性のタイプ: POINT |