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- EMDB-19457: Human mitochondrial RNase Z complex with ELAC2-D550N catalytic mu... -
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Open data
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Basic information
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Title | Human mitochondrial RNase Z complex with ELAC2-D550N catalytic mutant with ordered flexible arm and tRNA-Tyr precursor - (Composite model) | ||||||||||||||||||
![]() | Composite map of human mitochondrial RNase Z complex with tRNA-Tyr precursor - Class with ordered flexible arm | ||||||||||||||||||
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![]() | tRNA processing / RNase Z / endonuclease / mitochondrial / RNA BINDING PROTEIN | ||||||||||||||||||
Function / homology | ![]() 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 activity / tRNA decay / 3alpha(or 20beta)-hydroxysteroid dehydrogenase / androstan-3-alpha,17-beta-diol dehydrogenase (NAD+) activity / bile acid biosynthetic process / testosterone dehydrogenase (NAD+) activity / testosterone dehydrogenase [NAD(P)+] activity / 17beta-estradiol 17-dehydrogenase / Branched-chain amino acid catabolism / estradiol 17-beta-dehydrogenase [NAD(P)+] activity / positive regulation of mitochondrial translation / tRNA processing in the nucleus / estrogen metabolic process / fatty acid beta-oxidation / mitochondrial nucleoid / androgen metabolic process / Mitochondrial protein degradation / RNA endonuclease activity / Transferases; Transferring one-carbon groups; Methyltransferases / fatty acid metabolic process / mitochondrion organization / lipid metabolic process / mRNA processing / protein homotetramerization / tRNA binding / mitochondrial matrix / mitochondrion / RNA binding / nucleoplasm / identical protein binding / nucleus / metal ion binding / plasma membrane / cytosol / cytoplasm Similarity search - Function | ||||||||||||||||||
Biological species | ![]() | ||||||||||||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.2 Å | ||||||||||||||||||
![]() | Bhatta A / Yu RD / Kuhle B / Hillen HS | ||||||||||||||||||
Funding support | ![]()
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![]() | ![]() Title: Molecular basis of human nuclear and mitochondrial tRNA 3' processing. Authors: Arjun Bhatta / Bernhard Kuhle / Ryan D Yu / Lucas Spanaus / Katja Ditter / Katherine E Bohnsack / Hauke S Hillen / ![]() Abstract: 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. | ||||||||||||||||||
History |
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Structure visualization
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 90.7 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 35.6 KB 35.6 KB | Display Display | ![]() |
FSC (resolution estimation) | ![]() ![]() | 12 KB 12 KB | Display Display | ![]() |
Images | ![]() | 47.2 KB | ||
Masks | ![]() | 178 MB | ![]() | |
Filedesc metadata | ![]() | 8.5 KB | ||
Others | ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() | 88.5 MB 7 MB 89 MB 5 MB 164.9 MB 164.9 MB 165.1 MB 165 MB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Validation report
Summary document | ![]() | 1.1 MB | Display | ![]() |
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Full document | ![]() | 1.1 MB | Display | |
Data in XML | ![]() | 20.3 KB | Display | |
Data in CIF | ![]() | 25.7 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 8rr4MC ![]() 8rr1C ![]() 8rr3C C: citing same article ( M: atomic model generated by this map |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
EMDB pages | ![]() ![]() |
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Related items in Molecule of the Month |
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Map
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Annotation | Composite map of human mitochondrial RNase Z complex with tRNA-Tyr precursor - Class with ordered flexible arm | ||||||||||||||||||||||||||||||||||||
Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 0.834 Å | ||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Mask #1
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Projections & Slices |
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Density Histograms |
-Additional map: Focused refinement map centered on ELAC2 density
File | emd_19457_additional_1.map | ||||||||||||
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Annotation | Focused refinement map centered on ELAC2 density | ||||||||||||
Projections & Slices |
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Density Histograms |
-Additional map: Local resolution-filtered map for global consensus refinement
File | emd_19457_additional_2.map | ||||||||||||
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Annotation | Local resolution-filtered map for global consensus refinement | ||||||||||||
Projections & Slices |
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Density Histograms |
-Additional map: Consensus refinement map
File | emd_19457_additional_3.map | ||||||||||||
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Annotation | Consensus refinement map | ||||||||||||
Projections & Slices |
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Density Histograms |
-Additional map: Local resolution filtered map for focused refinement around...
File | emd_19457_additional_4.map | ||||||||||||
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Annotation | Local resolution filtered map for focused refinement around ELAC2 density | ||||||||||||
Projections & Slices |
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Density Histograms |
-Additional map: Half map 1 for focused refinement around ELAC2 density
File | emd_19457_additional_5.map | ||||||||||||
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Annotation | Half map 1 for focused refinement around ELAC2 density | ||||||||||||
Projections & Slices |
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Density Histograms |
-Additional map: Half map 2 for focused refinement around ELAC2 density
File | emd_19457_additional_6.map | ||||||||||||
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Annotation | Half map 2 for focused refinement around ELAC2 density | ||||||||||||
Projections & Slices |
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Density Histograms |
-Half map: Half map 2 for consensus refinement map
File | emd_19457_half_map_1.map | ||||||||||||
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Annotation | Half map 2 for consensus refinement map | ||||||||||||
Projections & Slices |
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Density Histograms |
-Half map: Half map 1 for consensus refinement map
File | emd_19457_half_map_2.map | ||||||||||||
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Annotation | Half map 1 for consensus refinement map | ||||||||||||
Projections & Slices |
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Density Histograms |
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Sample components
-Entire : Human mitochondrial RNase Z complex with tRNA-Tyr precursor
Entire | Name: Human mitochondrial RNase Z complex with tRNA-Tyr precursor |
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Components |
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-Supramolecule #1: Human mitochondrial RNase Z complex with tRNA-Tyr precursor
Supramolecule | Name: Human mitochondrial RNase Z complex with tRNA-Tyr precursor type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#4 |
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Source (natural) | Organism: ![]() |
-Macromolecule #1: 3-hydroxyacyl-CoA dehydrogenase type-2
Macromolecule | Name: 3-hydroxyacyl-CoA dehydrogenase type-2 / type: protein_or_peptide / ID: 1 / Number of copies: 4 / Enantiomer: LEVO / EC number: 3-hydroxyacyl-CoA dehydrogenase |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 26.947021 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: MAAACRSVKG LVAVITGGAS GLGLATAERL VGQGASAVLL DLPNSGGEAQ AKKLGNNCVF APADVTSEKD VQTALALAKG KFGRVDVAV NCAGIAVASK TYNLKKGQTH TLEDFQRVLD VNLMGTFNVI RLVAGEMGQN EPDQGGQRGV IINTASVAAF E GQVGQAAY ...String: MAAACRSVKG LVAVITGGAS GLGLATAERL VGQGASAVLL DLPNSGGEAQ AKKLGNNCVF APADVTSEKD VQTALALAKG KFGRVDVAV NCAGIAVASK TYNLKKGQTH TLEDFQRVLD VNLMGTFNVI RLVAGEMGQN EPDQGGQRGV IINTASVAAF E GQVGQAAY SASKGGIVGM TLPIARDLAP IGIRVMTIAP GLFGTPLLTS LPEKVCNFLA SQVPFPSRLG DPAEYAHLVQ AI IENPFLN GEVIRLDGAI RMQP UniProtKB: 3-hydroxyacyl-CoA dehydrogenase type-2 |
-Macromolecule #2: Zinc phosphodiesterase ELAC protein 2
Macromolecule | Name: Zinc phosphodiesterase ELAC protein 2 / type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO / EC number: tRNase Z |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 89.169336 KDa |
Recombinant expression | Organism: ![]() |
Sequence | String: SNAPRKDPLR HLRTREKRGP SGCSGGPNTV YLQVVAAGSR DSGAALYVFS EFNRYLFNCG EGVQRLMQEH KLKVARLDNI FLTRMHWSN VGGLSGMILT LKETGLPKCV LSGPPQLEKY LEAIKIFSGP LKGIELAVRP HSAPEYEDET MTVYQIPIHS E QRRGKHQP ...String: SNAPRKDPLR HLRTREKRGP SGCSGGPNTV YLQVVAAGSR DSGAALYVFS EFNRYLFNCG EGVQRLMQEH KLKVARLDNI FLTRMHWSN VGGLSGMILT LKETGLPKCV LSGPPQLEKY LEAIKIFSGP LKGIELAVRP HSAPEYEDET MTVYQIPIHS E QRRGKHQP WQSPERPLSR LSPERSSDSE SNENEPHLPH GVSQRRGVRD SSLVVAFICK LHLKRGNFLV LKAKEMGLPV GT AAIAPII AAVKDGKSIT HEGREILAEE LCTPPDPGAA FVVVECPDES FIQPICENAT FQRYQGKADA PVALVVHMAP ASV LVDSRY QQWMERFGPD TQHLVLNENC ASVHNLRSHK IQTQLNLIHP DIFPLLTSFR CKKEGPTLSV PMVQGECLLK YQLR PRREW QRDAIITCNP EEFIVEALQL PNFQQSVQEY RRSAQDGPAP AEKRSQYPEI IFLGTGSAIP MKIRNVSATL VNISP DTSL LLDCGEGTFG QLCRHYGDQV DRVLGTLAAV FVSHLHANHH TGLPSILLQR ERALASLGKP LHPLLVVAPN QLKAWL QQY HNQCQEVLHH ISMIPAKCLQ EGAEISSPAV ERLISSLLRT CDLEEFQTCL VRHCKHAFGC ALVHTSGWKV VYSGDTM PC EALVRMGKDA TLLIHEATLE DGLEEEAVEK THSTTSQAIS VGMRMNAEFI MLNHFSQRYA KVPLFSPNFS EKVGVAFD H MKVCFGDFPT MPKLIPPLKA LFAGDIEEME ERREKRELRQ VRAALLSREL AGGLEDGEPQ QKRAHTEEPQ AKKVRAQ UniProtKB: Zinc phosphodiesterase ELAC protein 2 |
-Macromolecule #3: tRNA methyltransferase 10 homolog C
Macromolecule | Name: tRNA methyltransferase 10 homolog C / type: protein_or_peptide / ID: 3 / Number of copies: 1 / Enantiomer: LEVO EC number: Transferases; Transferring one-carbon groups; Methyltransferases |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 37.165094 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: SNAAATREFI EMWRLLGREV PEHITEEELK TLMECVSNTA KKKYLKYLYT KEKVKKARQI KKEMKAAARE EAKNIKLLET TEEDKQKNF LFLRLWDRNM DIAMGWKGAQ AMQFGQPLVF DMAYENYMKR KELQNTVSQL LESEGWNRRN VDPFHIYFCN L KIDGALHR ...String: SNAAATREFI EMWRLLGREV PEHITEEELK TLMECVSNTA KKKYLKYLYT KEKVKKARQI KKEMKAAARE EAKNIKLLET TEEDKQKNF LFLRLWDRNM DIAMGWKGAQ AMQFGQPLVF DMAYENYMKR KELQNTVSQL LESEGWNRRN VDPFHIYFCN L KIDGALHR ELVKRYQEKW DKLLLTSTEK SHVDLFPKDS IIYLTADSPN VMTTFRHDKV YVIGSFVDKS MQPGTSLAKA KR LNLATEC LPLDKYLQWE IGNKNLTLDQ MIRILLCLKN NGNWQEALQF VPKRKHTGFL EISQHSQEFI NRLKKAKT UniProtKB: tRNA methyltransferase 10 homolog C |
-Macromolecule #4: Human mitochondria tRNA-Tyr precursor with 3' trailer
Macromolecule | Name: Human mitochondria tRNA-Tyr precursor with 3' trailer / type: rna / ID: 4 / Number of copies: 1 |
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Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 29.023184 KDa |
Sequence | String: GGUAAAAUGG CUGAGUGAAG CAUUGGACUG UAAAUCUAAA GACAGGGGUU AGGCCUCUUU UUACCAGCUC CGAGGUGAUU UUCAAGCUC G GENBANK: GENBANK: MK617242.1 |
-Macromolecule #5: ZINC ION
Macromolecule | Name: ZINC ION / type: ligand / ID: 5 / Number of copies: 2 / Formula: ZN |
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Molecular weight | Theoretical: 65.409 Da |
-Macromolecule #6: S-ADENOSYL-L-HOMOCYSTEINE
Macromolecule | Name: S-ADENOSYL-L-HOMOCYSTEINE / type: ligand / ID: 6 / Number of copies: 1 / Formula: SAH |
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Molecular weight | Theoretical: 384.411 Da |
Chemical component information | ![]() ChemComp-SAH: |
-Experimental details
-Structure determination
Method | cryo EM |
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![]() | single particle reconstruction |
Aggregation state | particle |
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Sample preparation
Buffer | pH: 7.5 Component:
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Grid | Model: Quantifoil R2/1 / Material: COPPER / Mesh: 200 / Support film - Material: CARBON / Support film - topology: HOLEY ARRAY / Pretreatment - Type: GLOW DISCHARGE | |||||||||||||||
Vitrification | Cryogen name: ETHANE / Chamber humidity: 95 % / Chamber temperature: 277 K / Instrument: FEI VITROBOT MARK IV |
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Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: GATAN K3 (6k x 4k) / Digitization - Dimensions - Width: 5760 pixel / Digitization - Dimensions - Height: 4092 pixel / Average electron dose: 40.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.5 µm / Nominal defocus min: 0.5 µm / Nominal magnification: 105000 |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |