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Translational regulation in prokaryotes ensures efficient protein synthesis by controlling ribosome access to mRNA. This regulation is mediated by secondary RNA structures, including translational riboswitches, RNA thermometers, and small RNAs (sRNAs), which respond to intracellular and environmental signals to modulate gene expression.Translational RiboswitchesRiboswitches in the leader region of mRNAs can regulate translation by altering the accessibility of the Shine-Dalgarno (SD) sequence,...
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Deacetylation Assays to Unravel the Interplay between Sirtuins SIRT2 and Specific Protein-substrates
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SIRT7 an emerging sirtuin: deciphering newer roles.

W Kim1, J E Kim

  • 1Department of Pharmacology and Department of Biomedical Science, School of Medicine, Kyung Hee University, Seoul, Republic of Korea. jekim@khu.ac.kr.

Journal of Physiology and Pharmacology : an Official Journal of the Polish Physiological Society
|December 6, 2013
PubMed
Summary

Sirtuin7 (SIRT7) is a protein deacetylase with known roles in rDNA transcription. Recent findings reveal SIRT7 has novel functions critical to cellular processes, expanding our understanding of this sirtuin family member.

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Area of Science:

  • Biochemistry
  • Molecular Biology
  • Genetics

Background:

  • Sirtuin7 (SIRT7) is a NAD(+)-dependent protein deacetylase within the sirtuin family.
  • While sirtuins are well-studied, knowledge regarding SIRT7's specific functions remains limited.
  • SIRT7 is known to be involved in rDNA transcription within the nucleolus.

Purpose of the Study:

  • To comprehensively review existing research on Sirtuin7 (SIRT7).
  • To highlight the newly discovered and critical roles of SIRT7 in various cellular functions.
  • To consolidate current understanding and identify future research directions for SIRT7.

Main Methods:

  • Literature review of published studies on Sirtuin7 (SIRT7).
  • Analysis of experimental data and findings related to SIRT7's enzymatic activity and cellular localization.
  • Synthesis of information regarding SIRT7's involvement in gene expression and cellular regulation.

Main Results:

  • SIRT7 plays a documented role in rDNA transcription and nucleolar function.
  • Emerging evidence indicates SIRT7 possesses additional, previously unrecognized functions.
  • These novel roles of SIRT7 are critical for maintaining essential cellular processes.

Conclusions:

  • Sirtuin7 (SIRT7) is a multifunctional protein with significant implications for cellular health.
  • Further investigation into SIRT7's novel functions is warranted to fully elucidate its biological importance.
  • Understanding SIRT7's roles can provide insights into therapeutic strategies for diseases involving sirtuin dysregulation.