ArticleInternational journal of molecular sciences2017
Analysis of the Roles of the Arabidopsis nMAT2 and PMH2 Proteins Provided with New Insights into the Regulation of Group II Intron Splicing in Land-Plant Mitochondria.
Article in International journal of molecular sciences, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.
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21 citing papers in PubMed, 40 citations in OpenAlex.
- Plant mitochondrial PORR proteins facilitate group II intron splicing by binding to distinct regions within their target introns.Nucleic acids research · 2025Article
- Mitochondrial RNA Helicases: Key Players in the Regulation of Plant Organellar RNA Splicing and Gene Expression.International journal of molecular sciences · 2024Review
- Review
- Mitochondrial RNA maturation.RNA biology · 2024Review
- Review
- Article
- ZmnMAT1, a nuclear-encoded type I maturase, is required for the splicing of mitochondrialFrontiers in plant science · 2022Article
- Article
- A RanBP2-type zinc finger protein functions in intron splicing in Arabidopsis mitochondria and is involved in the biogenesis of respiratory complex I.Nucleic acids research · 2021Article
- EMP32 is required for theRNA biology · 2021Article
- Regulator of Chromosome Condensation 1-Domain Protein DEK47 Functions on the Intron Splicing of MitochondrialFrontiers in plant science · 2021Article
- Mitochondrial Pentatricopeptide Repeat Protein, EMB2794, Plays a Pivotal Role in NADH Dehydrogenase Subunit nad2 mRNA Maturation in Arabidopsis thaliana.Plant & cell physiology · 2020Article
- Two Pentatricopeptide Repeat Proteins Are Required for the Splicing ofFrontiers in plant science · 2020Article
- PPR-SMR1 is required for the splicing of multiple mitochondrial introns, interacts with Zm-mCSF1, and is essential for seed development in maize.Journal of experimental botany · 2019Article
- The mitochondrial pentatricopeptide repeat protein EMP12 is involved in the splicing of three nad2 introns and seed development in maize.Journal of experimental botany · 2019Article
- Editorial for Special Issue "Plant Mitochondria".International journal of molecular sciences · 2018Article
- Three new pentatricopeptide repeat proteins facilitate the splicing of mitochondrial transcripts and complex I biogenesis in Arabidopsis.Journal of experimental botany · 2018Article
- The Complexity of Mitochondrial Complex IV: An Update of Cytochrome c Oxidase Biogenesis in Plants.International journal of molecular sciences · 2018Review
- Ectopic Transplastomic Expression of a Synthetic MatK Gene Leads to Cotyledon-Specific Leaf Variegation.Frontiers in plant science · 2018Article
- Control of organelle gene expression by the mitochondrial transcription termination factor mTERF22 in Arabidopsis thaliana plants.PloS one · 2018Article
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Authors and funding
5 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Plant mitochondria are remarkable with respect to the presence of numerous group II introns which reside in many essential genes. The removal of the organellar introns from the coding genes they interrupt is essential for respiratory functions, and is facilitated by different enzymes that belong to a diverse set of protein families. These include maturases and RNA helicases related proteins that function in group II intron splicing in different organisms. Previous studies indicate a role for the nMAT2 maturase and the RNA helicase PMH2 in the maturation of different pre-RNAs in Arabidopsis mitochondria. However, the specific roles of these proteins in the splicing activity still need to be resolved. Using transcriptome analyses of Arabidopsis mitochondria, we show that nMAT2 and PMH2 function in the splicing of similar subsets of group II introns. Fractionation of native organellar extracts and pulldown experiments indicate that nMAT2 and PMH2 are associated together with their intron-RNA targets in large ribonucleoprotein particle in vivo. Moreover, the splicing efficiencies of the joint intron targets of nMAT2 and PMH2 are more strongly affected in a double
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