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Yorodumi- PDB-9gch: Human mitochondrial RNase Z with tRNA-His-CCA, SDR5C1/TRMT10C focus -
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Open data
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Basic information
| Entry | Database: PDB / ID: 9gch | ||||||
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| Title | Human mitochondrial RNase Z with tRNA-His-CCA, SDR5C1/TRMT10C focus | ||||||
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Keywords | RNA BINDING PROTEIN / RNAseZ / ELAC2 / mitochondria / tRNA | ||||||
| Function / homology | Function and homology informationbrexanolone 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 ...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 / tRNA methyltransferase complex / 3-hydroxyacyl-CoA dehydrogenase / L-isoleucine catabolic process / 3alpha(17beta)-hydroxysteroid dehydrogenase (NAD+) / (3S)-3-hydroxyacyl-CoA dehydrogenase (NAD+) activity / : / 3alpha(or 20beta)-hydroxysteroid dehydrogenase / androstan-3-alpha,17-beta-diol dehydrogenase (NAD+) activity / bile acid biosynthetic process / testosterone dehydrogenase (NAD+) activity / positive regulation of mitochondrial translation / 17beta-estradiol 17-dehydrogenase / estradiol 17-beta-dehydrogenase [NAD(P)+] activity / Branched-chain amino acid catabolism / estrogen metabolic process / fatty acid beta-oxidation / androgen metabolic process / mitochondrial nucleoid / Mitochondrial protein degradation / Transferases; Transferring one-carbon groups; Methyltransferases / mitochondrion organization / fatty acid metabolic process / lipid metabolic process / mRNA processing / protein homotetramerization / tRNA binding / mitochondrial matrix / mitochondrion / RNA binding / nucleoplasm / identical protein binding / nucleus / plasma membrane / cytoplasm Similarity search - Function | ||||||
| Biological species | Homo sapiens (human) | ||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 1.9 Å | ||||||
Authors | Valentin Gese, G. / Hallberg, B.M. | ||||||
| Funding support | 1items
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Citation | Journal: EMBO J / Year: 2024Title: Structural basis of 3'-tRNA maturation by the human mitochondrial RNase Z complex. Authors: Genís Valentín Gesé / B Martin Hällberg / ![]() Abstract: Maturation of human mitochondrial tRNA is essential for cellular energy production, yet the underlying mechanisms remain only partially understood. Here, we present several cryo-EM structures of the ...Maturation of human mitochondrial tRNA is essential for cellular energy production, yet the underlying mechanisms remain only partially understood. Here, we present several cryo-EM structures of the mitochondrial RNase Z complex (ELAC2/SDR5C1/TRMT10C) bound to different maturation states of mitochondrial tRNA, showing the molecular basis for tRNA-substrate selection and catalysis. Our structural insights provide a molecular rationale for the 5'-to-3' tRNA processing order in mitochondria, the 3'-CCA antideterminant effect, and the basis for sequence-independent recognition of mitochondrial tRNA substrates. Furthermore, our study links mutations in ELAC2 to clinically relevant mitochondrial diseases, offering a deeper understanding of the molecular defects contributing to these conditions. | ||||||
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Structure visualization
| Structure viewer | Molecule: Molmil Jmol/JSmol |
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Downloads & links
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Download
| PDBx/mmCIF format | 9gch.cif.gz | 290 KB | Display | PDBx/mmCIF format |
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| PDB format | pdb9gch.ent.gz | 226 KB | Display | PDB format |
| PDBx/mmJSON format | 9gch.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Summary document | 9gch_validation.pdf.gz | 1.3 MB | Display | wwPDB validaton report |
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| Full document | 9gch_full_validation.pdf.gz | 1.3 MB | Display | |
| Data in XML | 9gch_validation.xml.gz | 60.6 KB | Display | |
| Data in CIF | 9gch_validation.cif.gz | 92.1 KB | Display | |
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/gc/9gch ftp://data.pdbj.org/pub/pdb/validation_reports/gc/9gch | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 51230MC ![]() 9ey0C ![]() 9ey1C ![]() 9ey2C C: citing same article ( M: map data used to model this data |
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| Similar structure data | Similarity search - Function & homology F&H Search |
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Links
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Assembly
| Deposited unit | ![]()
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| 1 |
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Components
-Protein , 2 types, 5 molecules ABCDF
| #1: Protein | Mass: 26947.021 Da / Num. of mol.: 4 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: HSD17B10, ERAB, HADH2, MRPP2, SCHAD, SDR5C1, XH98G2 / Production host: ![]() References: UniProt: Q99714, 3-hydroxyacyl-CoA dehydrogenase, 17beta-estradiol 17-dehydrogenase, 3alpha(17beta)-hydroxysteroid dehydrogenase (NAD+), 3-hydroxy-2-methylbutyryl-CoA dehydrogenase, ...References: 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: Protein | | Mass: 42055.281 Da / Num. of mol.: 1 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: TRMT10C, MRPP1, RG9MTD1 / Production host: ![]() References: UniProt: Q7L0Y3, Transferases; Transferring one-carbon groups; Methyltransferases, tRNA (adenine9-N1)-methyltransferase, tRNA (guanine9-N1)-methyltransferase |
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-RNA chain , 1 types, 1 molecules T
| #3: RNA chain | Mass: 22626.486 Da / Num. of mol.: 1 / Source method: obtained synthetically / Source: (synth.) Homo sapiens (human) / References: GenBank: 1896813685 |
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-Non-polymers , 4 types, 12 molecules 






| #4: Chemical | ChemComp-SAM / |
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| #5: Chemical | ChemComp-GTP / |
| #6: Chemical | ChemComp-MG / |
| #7: Water | ChemComp-HOH / |
-Details
| Has ligand of interest | Y |
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| Has protein modification | N |
-Experimental details
-Experiment
| Experiment | Method: ELECTRON MICROSCOPY |
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| EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
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Sample preparation
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| Molecular weight | Value: 0.25 MDa / Experimental value: NO | ||||||||||||||||||||||||
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| Source (recombinant) |
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| Buffer solution | pH: 7.5 | ||||||||||||||||||||||||
| Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES | ||||||||||||||||||||||||
| Vitrification | Cryogen name: ETHANE |
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Electron microscopy imaging
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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| Microscopy | Model: TFS KRIOS |
| Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: SPOT SCAN |
| Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 2000 nm / Nominal defocus min: 400 nm |
| Image recording | Electron dose: 48 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) |
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Processing
| EM software |
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| CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Particle selection | Num. of particles selected: 4773315 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 3D reconstruction | Resolution: 1.9 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 293773 / Symmetry type: POINT | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Atomic model building | Protocol: FLEXIBLE FIT / Space: REAL | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Atomic model building | PDB-ID: 7ONU Accession code: 7ONU / Source name: PDB / Type: experimental model | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Refinement | Resolution: 1.9→1.9 Å / Cor.coef. Fo:Fc: 0.801 / SU B: 3.126 / SU ML: 0.082 / ESU R: 0.072 Stereochemistry target values: MAXIMUM LIKELIHOOD WITH PHASES Details: HYDROGENS HAVE BEEN ADDED IN THE RIDING POSITIONS
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| Solvent computation | Solvent model: PARAMETERS FOR MASK CACLULATION | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Displacement parameters | Biso mean: 36.504 Å2 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Refinement step | Cycle: 1 / Total: 11231 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Refine LS restraints |
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