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Related Concept Videos

Cofactors and Coenzymes01:24

Cofactors and Coenzymes

Enzymes are proteins made of amino acids. The functional group of each constituent amino acid catalyzes a wide variety of chemical reactions via ionic interactions or acid-base reactions. However, amino acids cannot catalyze oxidation-reduction and group transfer reactions and need to be aided by non-protein components called cofactors. Cofactors are also referred to as the chemical teeth of an enzyme.
Cofactors can be metallic ions or organic molecules called coenzymes. These types of helper...
Cofactors and Coenzymes01:27

Cofactors and Coenzymes

Enzymes require additional components for proper function. There are two such classes of molecules: cofactors and coenzymes. Cofactors are metallic ions and coenzymes are non-protein organic molecules. Both of these types of helper molecule can be tightly bound to the enzyme or bound only when the substrate binds.
Cofactors and Coenzymes01:27

Cofactors and Coenzymes

Enzymes require additional components for proper function. There are two such classes of molecules: cofactors and coenzymes. Cofactors are metallic ions and coenzymes are non-protein organic molecules. Both of these types of helper molecule can be tightly bound to the enzyme or bound only when the substrate binds.
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...
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Pharmacogenetics and pharmacogenomics examine how genetic factors influence an individual's response to drugs. While pharmacogenetics focuses on the impact of specific genetic variants on drug effects, pharmacogenomics takes a broader approach, studying how genetic variation across populations contributes to differences in drug responses. These fields aim to explain why individuals may experience varying levels of efficacy or adverse reactions to the same medication.Variability in drug...
Drug Discovery: Overview01:26

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Drug discovery is a multifaceted process involving extensive screening, testing, and optimization of lead compounds to identify potential new drugs for therapeutic use. It combines several approaches, including screening large numbers of natural products, chemical modification of known active molecules, identification of new drug targets, and rational design based on biological mechanisms and drug-receptor structure. These approaches are carried out in both academic research laboratories and...

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Sequence-specific Labeling of Nucleic Acids and Proteins with Methyltransferases and Cofactor Analogues
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Published on: November 22, 2014

Cofactor chemogenomics.

Ratna Singh1, Andrea Mozzarelli

  • 1Department of Biochemistry and Molecular Biology, University of Parma, Parma, Italy.

Methods in Molecular Biology (Clifton, N.J.)
|September 4, 2009
PubMed
Summary
This summary is machine-generated.

Chemogenomics uses cofactor mimics to inhibit enzymes. Tailoring scaffolds with substrate features enhances specificity, enabling targeted enzyme inhibition across various cofactor classes.

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Area of Science:

  • Biochemistry
  • Enzymology
  • Chemogenomics

Background:

  • Cofactors are essential organic molecules, often vitamin-derived, that enable enzyme catalysis.
  • Chemogenomics offers a strategy to inhibit enzymes by designing molecules that mimic cofactors.
  • Current methods primarily target NAD(P)(+)-dependent enzymes.

Purpose of the Study:

  • To explore the broader applicability of cofactor-based chemogenomics beyond NAD(P)(+)-dependent enzymes.
  • To develop compound scaffolds that mimic cofactors and induce enzyme loss of function.
  • To enhance the specificity of enzyme inhibition by incorporating substrate-mimicking features.

Main Methods:

  • Designing cofactor-mimicking compound scaffolds.
  • Exploiting cofactor-binding domains for targeted enzyme inhibition.
  • Expanding scaffolds with substrate-binding site features to increase specificity.

Main Results:

  • Demonstrated a loss of enzyme function through cofactor mimicry.
  • Showcased increased specificity by incorporating substrate-derived chemical features.
  • Identified potential challenges with tightly bound or covalently attached cofactors.

Conclusions:

  • Cofactor-based chemogenomics is a versatile approach applicable to various enzyme classes.
  • Scaffold design, including substrate-mimicking elements, is crucial for specificity and efficacy.
  • Further research is needed to address challenges with specific cofactor types, such as covalently bound ones.