: / : / Ribosomal protein L55, mitochondrial / Mitochondrial ribosomal protein L55 superfamily / Mitochondrial ribosomal protein L55 / Mitochondrial ribosomal protein L48 / 39S ribosomal protein L40, mitochondrial / Ribosomal protein S30, mitochondrial / Ribosomal protein L53, mitochondrial / 39S ribosomal protein L53/MRP-L53 ...: / : / Ribosomal protein L55, mitochondrial / Mitochondrial ribosomal protein L55 superfamily / Mitochondrial ribosomal protein L55 / Mitochondrial ribosomal protein L48 / 39S ribosomal protein L40, mitochondrial / Ribosomal protein S30, mitochondrial / Ribosomal protein L53, mitochondrial / 39S ribosomal protein L53/MRP-L53 / 39S ribosomal protein L42, mitochondrial / Mitochondrial 28S ribosomal protein S32 / Ribosomal protein L37, mitochondrial / Ribosomal protein L28/L40, mitochondrial / Mitochondrial ribosomal protein L37 / Mitochondrial ribosomal protein L28 / Ribosomal protein 63, mitochondrial / Growth arrest/ DNA-damage-inducible protein-interacting protein 1 / Ribosomal protein L51, mitochondrial / Growth arrest and DNA-damage-inducible proteins-interacting protein 1 / Mitochondrial ribosomal subunit / Mitochondrial ribosome protein 63 / Ribosomal protein L37/S30 / Growth arrest and DNA damage-inducible proteins-interacting protein 1 domain superfamily / : / : / Mitochondrial 28S ribosomal protein S30 (PDCD9) / Ribosomal protein L35, mitochondrial / 39S ribosomal protein L52, mitochondrial / Mitoribosomal protein mL52 / : / MRPL44, double-stranded RNA binding domain / : / MRPL44 dsRNA-binding domain / Large ribosomal subunit protein mL44, endonuclease domain / : / Large ribosomal subunit protein bL9m C-terminal domain / Tim44-like domain / Tim44-like domain / Tim44 / Ribosomal protein L7/L12, oligomerisation / Ribosomal protein L7/L12, oligomerisation domain superfamily / Ribosomal protein L7/L12 dimerisation domain / Mitochondrial ribosomal protein L46 NUDIX / Ribosomal protein L7/L12 / Ribosomal protein L7/L12, C-terminal / : / Ribosomal protein L7/L12 C-terminal domain / : / Ribosomal protein L46, N-terminal / 39S mitochondrial ribosomal protein L46 / Ribosomal protein L50, mitochondria / Ribosomal subunit 39S / Ribosomal protein L49/IMG2 / Mitochondrial large subunit ribosomal protein (Img2) / Ribosomal protein L27/L41, mitochondrial / : / Mitochondrial ribosomal protein L27 / 39S ribosomal protein L46, mitochondrial / 39S ribosomal protein L43/54S ribosomal protein L51 / Ribosomal protein L47, mitochondrial / MRP-L47 superfamily, mitochondrial / Mitochondrial 39-S ribosomal protein L47 (MRP-L47) / Phosphatidylethanolamine-binding protein, eukaryotic / Phosphatidylethanolamine-binding protein / Phosphatidylethanolamine-binding protein / PEBP-like superfamily / Ribosomal protein L7/L12, C-terminal/adaptor protein ClpS-like / Threonyl/alanyl tRNA synthetase, class II-like, putative editing domain superfamily / TGS-like / TGS domain profile. / TGS / Peptide chain release factor class I / RF-1 domain / Ribonuclease III, endonuclease domain superfamily / Double stranded RNA-binding domain (dsRBD) profile. / Double-stranded RNA-binding domain / : / Mitochondrial ribosomal protein L51 / S25 / CI-B8 domain / Ribosomal protein/NADH dehydrogenase domain / Mitochondrial ribosomal protein L51 / S25 / CI-B8 domain / Beta-grasp domain superfamily / NTF2-like domain superfamily / NUDIX hydrolase-like domain superfamily / Ribosomal protein L11, bacterial-type / Ribosomal protein L10-like domain superfamily / Ribosomal protein L10P / Ribosomal protein L10 / Ribosomal protein L11, N-terminal / Ribosomal protein L11, N-terminal domain / Ribosomal protein L11/L12 / Ribosomal protein L11, C-terminal / Ribosomal protein L11, C-terminal domain superfamily / Ribosomal protein L11/L12, N-terminal domain superfamily / Ribosomal protein L11/L12 / Ribosomal protein L11, RNA binding domain / Ribosomal protein L28/L24 superfamily / Ribosomal protein L9, N-terminal domain superfamily / Ribosomal protein L9 / Ribosomal protein L9, N-terminal Similarity search - Domain/homology
Large ribosomal subunit protein mL52 / Mitochondrial ribosomal protein L18, isoform CRA_b / Large ribosomal subunit protein uL22m / Large ribosomal subunit protein bL33m / Large ribosomal subunit protein uL3m / Large ribosomal subunit protein bL19m / Large ribosomal subunit protein bL12m / Large ribosomal subunit protein bL28m / Large ribosomal subunit protein mL49 / Large ribosomal subunit protein mL62 ...Large ribosomal subunit protein mL52 / Mitochondrial ribosomal protein L18, isoform CRA_b / Large ribosomal subunit protein uL22m / Large ribosomal subunit protein bL33m / Large ribosomal subunit protein uL3m / Large ribosomal subunit protein bL19m / Large ribosomal subunit protein bL12m / Large ribosomal subunit protein bL28m / Large ribosomal subunit protein mL49 / Large ribosomal subunit protein mL62 / Large ribosomal subunit protein uL23m / Large ribosomal subunit protein mL51 / Large ribosomal subunit protein uL2m / Large ribosomal subunit protein mL54 / Large ribosomal subunit protein uL14m / Large ribosomal subunit protein bL21m / Large ribosomal subunit protein mL55 / Large ribosomal subunit protein uL10m / Large ribosomal subunit protein mL41 / Large ribosomal subunit protein mL50 / Large ribosomal subunit protein mL43 / Large ribosomal subunit protein mL64 / Large ribosomal subunit protein uL30m / Large ribosomal subunit protein uL24m / Large ribosomal subunit protein mL38 / Large ribosomal subunit protein mL53 / Large ribosomal subunit protein mL48 / Large ribosomal subunit protein bL34m / Large ribosomal subunit protein mL63 / Large ribosomal subunit protein mL45 / Large ribosomal subunit protein bL32m / Large ribosomal subunit protein bL20m / Large ribosomal subunit protein uL13m / Large ribosomal subunit protein bL9m / Large ribosomal subunit protein uL4m / Large ribosomal subunit protein mL37 / Large ribosomal subunit protein mL46 / Large ribosomal subunit protein mL44 / Large ribosomal subunit protein uL29m / Large ribosomal subunit protein mL65 / Large ribosomal subunit protein mL40 / Large ribosomal subunit protein bL17m / Large ribosomal subunit protein mL66 / Large ribosomal subunit protein uL16m / Large ribosomal subunit protein mL39 / Large ribosomal subunit protein bL35m / Large ribosomal subunit protein uL15m / Large ribosomal subunit protein bL36m / Large ribosomal subunit protein bL27m / Large ribosomal subunit protein uL11m / Large ribosomal subunit protein mL42 Similarity search - Component
Biological species
Homo sapiens (human)
Method
single particle reconstruction / cryo EM / Resolution: 2.62 Å
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)
R01 AI137270
United States
Citation
Journal: Nucleic Acids Res / Year: 2025 Title: Context-specific inhibition of mitochondrial ribosomes by phenicol and oxazolidinone antibiotics. Authors: Brianna Bibel / Tushar Raskar / Mary Couvillion / Muhoon Lee / Jordan I Kleinman / Nono Takeuchi-Tomita / L Stirling Churchman / James S Fraser / Danica Galonić Fujimori / Abstract: The antibiotics chloramphenicol (CHL) and oxazolidinones, including linezolid (LZD), are known to inhibit mitochondrial translation. This can result in serious, potentially deadly, side effects when ...The antibiotics chloramphenicol (CHL) and oxazolidinones, including linezolid (LZD), are known to inhibit mitochondrial translation. This can result in serious, potentially deadly, side effects when used therapeutically. Although the mechanism by which CHL and LZD inhibit bacterial ribosomes has been elucidated in detail, their mechanism of action against mitochondrial ribosomes has yet to be explored. CHL and oxazolidinones bind to the ribosomal peptidyl transfer center (PTC) of the bacterial ribosome and prevent incorporation of incoming amino acids under specific sequence contexts, causing ribosomes to stall only at certain sequences. Through mitoribosome profiling, we show that inhibition of mitochondrial ribosomes is similarly context-specific-CHL and LZD lead to mitoribosome stalling primarily when there is an alanine, serine, or threonine in the penultimate position of the nascent peptide chain. We further validate context-specific stalling through in vitro translation assays. A high-resolution cryo-electron microscopy structure of LZD bound to the PTC of the human mitoribosome shows extensive similarity to the mode of bacterial inhibition and also suggests potential avenues for altering selectivity. Our findings could help inform the rational development of future, less mitotoxic, antibiotics, which are critically needed in the current era of increasing antimicrobial resistance.
Macromolecule #44: cDNA FLJ76418, highly similar to Homo sapiens mitochondrial ribos...
Macromolecule
Name: cDNA FLJ76418, highly similar to Homo sapiens mitochondrial ribosomal protein L52 (MRPL52), transcript variant 1, mRNA type: protein_or_peptide / ID: 44 / Number of copies: 1 / Enantiomer: LEVO
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