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| RNA Polymerase I - DNA-Directed RNA Polymerase I Abbreviation: RNA Pol I, Pol I, RNAPI Type: Nuclear DNA-dependent RNA polymerase / ribosomal RNA transcription complex Function: RNA polymerase I transcribes the 47S precursor ribosomal RNA, which is processed to generate 18S, 5.8S, and 28S rRNAs. Pol I activity is concentrated in the nucleolus and is a major regulator of ribosome biogenesis, protein-synthesis capacity, cell growth, and proliferation. Cancer: ↑ Frequently hyperactivated in cancer. Increased Pol I-dependent rRNA transcription supports elevated ribosome biogenesis and protein synthesis required for rapid tumor-cell growth. Oncogenic pathways including MYC can stimulate Pol I transcription, while tumor suppressors including TP53 and RB normally restrain ribosome biogenesis. Pharmacological inhibition of Pol I can induce nucleolar stress and suppress tumor growth. |
Query results interpretion may depend on "conditions" listed in the research papers. Such Conditions may include : -low or high Dose -format for product, such as nano of lipid formations -different cell line effects -synergies with other products -if effect was for normal or cancerous cells
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