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Dieci G, et al.  (2009) Positive modulation of RNA polymerase III transcription by ribosomal proteins. Biochem Biophys Res Commun 379(2):489-93

Abstract: A yeast nuclear fraction of unknown composition, named TFIIIE, was reported previously to enhance transcription of tRNA and 5S rRNA genes in vitro. We show that TFIIIE activity co-purifies with a specific subset of ribosomal proteins (RPs) which, as revealed by chromatin immunoprecipitation analysis, generally interact with tRNA and 5S rRNA genes, but not with a Pol II-specific promoter. Only Rpl6Ap and Rpl6Bp, among the tested RPs, were found associated to a TATA-containing tRNA(Ile)(TAT) gene. The RPL6A gene also emerged as a strong multicopy suppressor of a conditional mutation in the basal transcription factor TFIIIC, while RPL26A and RPL14A behaved as weak suppressors. The data delineate a novel extra-ribosomal role for one or a few RPs which, by influencing 5S rRNA and tRNA synthesis, could play a key role in the coordinate regulation of the different sub-pathways required for ribosome biogenesis and functionality.

Status: Published Type: Journal Article PubMed ID: 19116144

Topics addressed in this paper

Number of different genes curated to this paper: 61

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Topics Genes linked to topics (#1 - 10 )
RDN5-1 RDN5-2 RDN5-3 RDN5-4 RDN5-5 RDN5-6 RET1 RPB10 RPB5 RPB8
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Topics Genes linked to topics (#11 - 20 )
RPC10 RPC11 RPC17 RPC19 RPC25 RPC31 RPC34 RPC37 RPC40 RPC53
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Topics Genes linked to topics (#21 - 30 )
RPC82 RPL13A RPL13B RPL14A RPL14B RPL26A RPL26B RPL36A RPL6A RPL6B
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Topics Genes linked to topics (#31 - 40 )
RPL7A RPL7B RPO26 RPO31 RPS24A RPS24B RPS25A RPS25B RPS4A RPS4B
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Topics Genes linked to topics (#41 - 50 )
RPS5 RPS8A RPS8B RPS9A RPS9B SNR78 TFC3 tK(CUU)C tK(CUU)D1 tK(CUU)D2
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Topics Genes linked to topics (#51 - 60 )
tK(CUU)E1 tK(CUU)E2 tK(CUU)F tK(CUU)G1 tK(CUU)G2 tK(CUU)G3 tK(CUU)I tK(CUU)J tK(CUU)K tK(CUU)M
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Topics Genes linked to topics (#61 )
tK(CUU)P
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