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Related Concept Videos

Targets for Drug Action: Overview01:26

Targets for Drug Action: Overview

Drugs target macromolecules to modify ongoing cellular processes. Primary drug targets include receptors, ion channels, transporters, and enzymes.
Receptors are either membrane-spanning or intracellular proteins, which upon binding a ligand, get activated and transmit the signal downstream to elicit a response. Drugs bind receptors, either mimicking the action of endogenous ligands or blocking the receptor activity to bring about a modified response. Nearly 35% of approved drugs target the G...
Covalently Linked Protein Regulators02:04

Covalently Linked Protein Regulators

Proteins can undergo many types of post-translational modifications, often in response to changes in their environment. These modifications play an important role in the function and stability of these proteins. Covalently linked molecules include functional groups, such as methyl, acetyl, and phosphate groups, and also small proteins, such as ubiquitin. There are around 200 different types of covalent regulators that have been identified.
These groups modify specific amino acids in a protein.
Electron Transport Chain: Complex I and II01:46

Electron Transport Chain: Complex I and II

The mitochondrial electron transport chain (ETC) is the main energy generation system in the eukaryotic cells. However, mitochondria also produce cytotoxic reactive oxygen species (ROS) due to the large electron flow during oxidative phosphorylation. While Complex I is one of the primary sources of superoxide radicals, ROS production by Complex II is uncommon and may only be observed in cancer cells with mutated complexes.
ROS generation is regulated and maintained at moderate levels necessary...
Pharmacogenetics of Drug Targets: β₂-Adrenergic Receptors, Apo E, Thymidylate Synthase01:11

Pharmacogenetics of Drug Targets: β₂-Adrenergic Receptors, Apo E, Thymidylate Synthase

Genetic polymorphisms in drug targets have emerged as critical determinants of interindividual variability in drug response and toxicity. Pharmacogenomic investigations increasingly focus on identifying these variations to personalize and optimize therapeutic interventions. A drug target may be a receptor, enzyme, or signaling protein involved in pharmacologic responses or disease-related pathways. While early pharmacogenetic studies focused primarily on drug metabolism, current research...
Pharmacogenomics: Identification of New Drug Targets01:29

Pharmacogenomics: Identification of New Drug Targets

Advances in genomics have profoundly influenced drug discovery by increasing both the speed and accuracy of pharmaceutical development. Pharmacogenomics, which examines how genetic variation influences drug response, facilitates the identification of novel therapeutic targets and enables patient stratification for personalized treatment. These strategies contribute to improved drug efficacy, minimized adverse effects, and more efficient clinical trial design.Mapping genetic differences...
Transducer Mechanism: Enzyme-Linked Receptors01:27

Transducer Mechanism: Enzyme-Linked Receptors

Enzyme-linked receptors are cell-surface receptors acting as an enzyme or associating with an enzyme intracellularly. They make excellent drug targets. Drugs can bind to the extracellular ligand-binding domain or directly affect their enzymatic domain and alter their activity.
Major types that are helpful drug targets include:

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Related Experiment Video

Updated: May 28, 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

Sirtuins: multifaceted drug targets.

S P Chakrabarty1, H Balaram, S Chandrasekaran

  • 1Aurigene Discovery Technologies Ltd, Electronic City, Bangalore 560100, India.

Current Molecular Medicine
|October 18, 2011
PubMed
Summary

Sirtuin proteins (Sir2) regulate key cellular processes like aging and cancer. Researchers use genetics and medicinal chemistry to discover Sir2 modulators for pharmacological and chemical genetic studies.

Area of Science:

  • Biochemistry
  • Molecular Biology
  • Genetics

Background:

  • Sirtuin (Sir2) proteins are crucial regulators of cellular processes.
  • Sir2s are implicated in aging, cancer, and neurological disorders.

Purpose of the Study:

  • To investigate the diverse functions of Sirtuin proteins.
  • To explore the pharmacological potential of Sir2 modulators.

Main Methods:

  • Genetic studies
  • Molecular biology techniques
  • Biochemical assays
  • Structural biology
  • Medicinal chemistry approaches

Main Results:

  • Significant insights into diverse Sir2 functions have been gained.

Related Experiment Videos

Last Updated: May 28, 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

  • Small molecule activators and inhibitors of Sir2 have been discovered.

    • Conclusions:

    • Sir2 modulators have pharmacological significance.
    • Chemical genetics can be used to understand Sir2's role in cellular processes.