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Related Concept Videos

Regulation of the Unfolded Protein Response01:31

Regulation of the Unfolded Protein Response

Inositol-requiring kinase one or IRE1 is the most conserved eukaryotic unfolded protein response (UPR) receptor. It is a type I transmembrane protein kinase receptor with a distinctive site-specific RNase activity. As the binding mechanics of the misfolded proteins with the N-terminal domain of IRE-1 are unclear, three binding models — direct, indirect, and allosteric -- are proposed for receptor activation. Nevertheless, it is known that once a misfolded protein associates with IRE1, it...
Translational Regulation01:29

Translational Regulation

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,...
Regulated Protein Degradation02:58

Regulated Protein Degradation

It is vital to regulate the activity of enzymatic as well as non-enzymatic proteins inside the cell. This can be achieved either through creating a balance between their rate of synthesis and degradation or regulating the intrinsic activity of the protein. Both these regulation mechanisms play an essential role in the normal functioning of cells.
Protein degradation plays two important roles in the cells. It helps to protect cells from misfolded or damaged proteins before they lead to a...
Regulated Protein Degradation02:58

Regulated Protein Degradation

It is vital to regulate the activity of enzymatic as well as non-enzymatic proteins inside the cell. This can be achieved either through creating a balance between their rate of synthesis and degradation or regulating the intrinsic activity of the protein. Both these regulation mechanisms play an essential role in the normal functioning of cells.
Protein degradation plays two important roles in the cells. It helps to protect cells from misfolded or damaged proteins before they lead to a...
Negative Regulator Molecules01:23

Negative Regulator Molecules

Positive regulators allow a cell to advance through cell cycle checkpoints. Negative regulators have an equally important role as they terminate a cell’s progression through the cell cycle—or pause it—until the cell meets specific criteria.
Regulation of Nuclear Protein Sorting01:45

Regulation of Nuclear Protein Sorting

Nuclear protein sorting regulates nucleus composition and gene expression, crucial for determining the fate of a eukaryotic cell. Hence, the entry and exit of molecules across the nuclear envelope is a tightly controlled process. Nuclear protein sorting can be inhibited by one of the following ways: 1) masking cargo signal sequences, 2) modifying the nuclear receptor's affinity for cargo, 3) controlling the nuclear pore size, 4) retaining the cargo during its transit to the cytosol or the...

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Related Experiment Video

Updated: Jul 2, 2026

Deacetylation Assays to Unravel the Interplay between Sirtuins (SIRT2) and Specific Protein-substrates
14:32

Deacetylation Assays to Unravel the Interplay between Sirtuins (SIRT2) and Specific Protein-substrates

Published on: February 27, 2016

SIRTUIN 1: regulating the regulator.

Barbara Zschoernig1, Ulrich Mahlknecht

  • 1Saarland University Medical Center, Department of Internal Medicine, Division of Immunotherapy and Gene Therapy, José Carreras Center for Immunotherapy and Gene Therapy, Kirrberger Strasse, Building 40, D-66421 Homburg/Saar, Germany.

Biochemical and Biophysical Research Communications
|September 9, 2008
PubMed
Summary
This summary is machine-generated.

This review explores the regulation of SIRT1, a sirtuin histone deacetylase crucial for metabolic homeostasis and disease treatment. Understanding SIRT1 regulation is key to developing specific therapies for cancer and neurodegenerative disorders.

Related Experiment Videos

Last Updated: Jul 2, 2026

Deacetylation Assays to Unravel the Interplay between Sirtuins (SIRT2) and Specific Protein-substrates
14:32

Deacetylation Assays to Unravel the Interplay between Sirtuins (SIRT2) and Specific Protein-substrates

Published on: February 27, 2016

Area of Science:

  • Biochemistry
  • Molecular Biology
  • Cell Biology

Background:

  • Sirtuin family, including SIRT1, are histone deacetylases involved in metabolic homeostasis, differentiation, apoptosis, and cell survival.
  • While SIRT1's targets and functions are known, its own regulation remains poorly understood.
  • SIRT1 is a significant target for innovative treatments in cancer, neurodegenerative diseases, and metabolic disorders.

Purpose of the Study:

  • To review recent research advances on the regulation of SIRT1.
  • To highlight the importance of understanding SIRT1 regulation for developing targeted therapies.

Main Methods:

  • Literature review of recent research on SIRT1 regulation.
  • Analysis of SIRT1's unique catalytic activity compared to other HDACs.

Main Results:

  • SIRT1 and other sirtuins are insensitive to classical class I and II HDAC inhibitors.
  • Recent research has shed light on the regulatory mechanisms of SIRT1.

Conclusions:

  • Understanding SIRT1 regulation is essential for developing novel therapeutic inhibitors with improved specificity.
  • Targeting SIRT1 offers potential for new treatment strategies in various diseases.