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  • Tran, Huy CuongLund University,Lunds universitet,Molekylär cellbiologi,Biologiska institutionen,Naturvetenskapliga fakulteten,Molecular Cell Biology,Department of Biology,Faculty of Science (author)

An mTRAN-mRNA interaction mediates mitochondrial translation initiation in plants

  • Article/chapterEnglish2023

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  • 2023
  • electronicrdacarrier

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  • LIBRIS-ID:oai:lup.lub.lu.se:1e34af95-f1e4-4b7c-8a32-84212c54dd16
  • https://lup.lub.lu.se/record/1e34af95-f1e4-4b7c-8a32-84212c54dd16URI

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  • Language:English
  • Summary in:English

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  • Subject category:art swepub-publicationtype
  • Subject category:ref swepub-contenttype

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  • Plant mitochondria represent the largest group of respiring organelles on the planet. Plant mitochondrial messenger RNAs (mRNAs) lack Shine-Dalgarno-like ribosome-binding sites, so it is unknown how plant mitoribosomes recognize mRNA. We show that “mitochondrial translation factors” mTRAN1 and mTRAN2 are land plant–specific proteins, required for normal mitochondrial respiration chain biogenesis. Our studies suggest that mTRANs are noncanonical pentatricopeptide repeat (PPR)–like RNA binding proteins of the mitoribosomal “small” subunit. We identified conserved Adenosine (A)/Uridine (U)-rich motifs in the 5′ regions of plant mitochondrial mRNAs. mTRAN1 binds this motif, suggesting that it is a mitoribosome homing factor to identify mRNAs. We demonstrate that mTRANs are likely required for translation of all plant mitochondrial mRNAs. Plant mitochondrial translation initiation thus appears to use a protein-mRNA interaction that is divergent from bacteria or mammalian mitochondria.

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  • Schmitt, VivianLund University,Lunds universitet,Molekylär cellbiologi,Biologiska institutionen,Naturvetenskapliga fakulteten,Molecular Cell Biology,Department of Biology,Faculty of Science(Swepub:lu)vi8332sc (author)
  • Lama, SbatieLund University,Lunds universitet,Molekylär cellbiologi,Biologiska institutionen,Naturvetenskapliga fakulteten,Molecular Cell Biology,Department of Biology,Faculty of Science(Swepub:lu)sb4400la (author)
  • Wang, ChuandeUniversity of Paris-Saclay (author)
  • Launay-Avon, AlexandraUniversity of Paris-Saclay (author)
  • Bernfur, KatjaLund University,Lunds universitet,Biokemi och Strukturbiologi,Centrum för Molekylär Proteinvetenskap,Kemiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Biochemistry and Structural Biology,Center for Molecular Protein Science,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)biok-kbe (author)
  • Sultan, KristinLund University,Lunds universitet,Institutionen för immunteknologi,Institutioner vid LTH,Lunds Tekniska Högskola,Department of Immunotechnology,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)kr2274ho (author)
  • Khan, KasimLund University,Lunds universitet,Molekylär cellbiologi,Biologiska institutionen,Naturvetenskapliga fakulteten,Växtbiologi,Forskargrupper vid Lunds universitet,Molecular Cell Biology,Department of Biology,Faculty of Science,Plant Biology,Lund University Research Groups(Swepub:lu)ka5632kh (author)
  • Brunaud, VeroniqueUniversity of Paris-Saclay (author)
  • Liehrmann, ArnaudUniversity of Paris-Saclay (author)
  • Castandet, BenoitUniversity of Paris-Saclay (author)
  • Levander, FredrikLund University,Lunds universitet,Institutionen för immunteknologi,Institutioner vid LTH,Lunds Tekniska Högskola,Department of Immunotechnology,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)tmb-fle (author)
  • Rasmusson, AllanLund University,Lunds universitet,Molekylär cellbiologi,Biologiska institutionen,Naturvetenskapliga fakulteten,Växtbiologi,Forskargrupper vid Lunds universitet,Molecular Cell Biology,Department of Biology,Faculty of Science,Plant Biology,Lund University Research Groups(Swepub:lu)fysb-ara (author)
  • Mireau, HakimUniversity of Paris-Saclay (author)
  • Delannoy, EtienneUniversity of Paris-Saclay (author)
  • Van Aken, OlivierLund University,Lunds universitet,Molekylär cellbiologi,Biologiska institutionen,Naturvetenskapliga fakulteten,Växtbiologi,Forskargrupper vid Lunds universitet,Molecular Cell Biology,Department of Biology,Faculty of Science,Plant Biology,Lund University Research Groups(Swepub:lu)ol4538va (author)
  • Molekylär cellbiologiBiologiska institutionen (creator_code:org_t)

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