ArticleScientific reports2016
A tRNA methyltransferase paralog is important for ribosome stability and cell division in Trypanosoma brucei.
Article in Scientific reports, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed, 9 citations in OpenAlex.
- The life and times of a tRNA.RNA (New York, N.Y.) · 2023Review
- Dissecting Trypanosoma brucei RRP44 function in the maturation of segmented ribosomal RNA using a regulated genetic complementation system.Nucleic acids research · 2023Article
- Trypanosoma brucei RRP44 is involved in an early stage of large ribosomal subunit RNA maturation.RNA biology · 2019Article
- Multi-Substrate Specificity and the Evolutionary Basis for Interdependence in tRNA Editing and Methylation Enzymes.Frontiers in genetics · 2019Review
- TbUTP10, a protein involved in early stages of pre-18S rRNA processing in Trypanosoma brucei.Molecular and biochemical parasitology · 2018Article
- Binding synergy as an essential step for tRNA editing and modification enzyme codependence inRNA (New York, N.Y.) · 2018Article
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Authors and funding
7 authors at 2 institutions in 1 country.
Funding
Abstract
Most eukaryotic ribosomes contain 26/28S, 5S, and 5.8S large subunit ribosomal RNAs (LSU rRNAs) in addition to the 18S rRNA of the small subunit (SSU rRNA). However, in kinetoplastids, a group of organisms that include medically important members of the genus Trypanosoma and Leishmania, the 26/28S large subunit ribosomal RNA is uniquely composed of 6 rRNA fragments. In addition, recent studies have shown the presence of expansion segments in the large ribosomal subunit (60S) of Trypanosoma brucei. Given these differences in structure, processing and assembly, T. brucei ribosomes may require biogenesis factors not found in other organisms. Here, we show that one of two putative 3-methylcytidine methyltransferases, TbMTase37 (a homolog of human methyltransferase-like 6, METTL6), is important for ribosome stability in T. brucei. TbMTase37 localizes to the nucleolus and depletion of the protein results in accumulation of ribosomal particles lacking srRNA 4 and reduced levels of polysome associated ribosomes. We also find that TbMTase37 plays a role in cytokinesis, as loss of the protein leads to multi-flagellated and multi-nucleated cells.
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