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Ligand Binding and Linkage00:49

Ligand Binding and Linkage

Allosteric proteins have more than one ligand binding site; the binding of a ligand to any of these sites influences the binding of ligands to the other sites. When a protein is allosteric, its binding sites are called coupled or linked.  In the case of enzymes, the site that binds to the substrate is known as the active site and the other site is known as the regulatory site. When a ligand binds to the regulatory site, this leads to conformational changes in the protein that can influence the...
Ligand Binding and Linkage00:49

Ligand Binding and Linkage

Allosteric proteins have more than one ligand binding site; the binding of a ligand to any of these sites influences the binding of ligands to the other sites. When a protein is allosteric, its binding sites are called coupled or linked.  In the case of enzymes, the site that binds to the substrate is known as the active site and the other site is known as the regulatory site. When a ligand binds to the regulatory site, this leads to conformational changes in the protein that can influence the...
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Biosynthesis in bacteria is a fundamental anabolic process that generates essential macromolecules, including proteins, nucleic acids, lipids, and polysaccharides. These macromolecules are critical for cellular growth, replication, and function. The process is tightly regulated and energetically linked to catabolic pathways to ensure optimal resource utilization.Biosynthetic pathways begin with precursor metabolites such as pyruvate, acetyl-CoA, and glucose-6-phosphate derived from glycolysis,...
Cooperative Allosteric Transitions01:58

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Cooperative allosteric transitions can occur in multimeric proteins, where each subunit of the protein has its own ligand-binding site. When a ligand binds to any of these subunits, it triggers a conformational change that affects the binding sites in the other subunits; this can change the affinity of the other sites for their respective ligands. The ability of the protein to change the shape of its binding site is attributed to the presence of a mix of flexible and stable segments in the...
Cooperative Allosteric Transitions01:58

Cooperative Allosteric Transitions

Cooperative allosteric transitions can occur in multimeric proteins, where each subunit of the protein has its own ligand-binding site. When a ligand binds to any of these subunits, it triggers a conformational change that affects the binding sites in the other subunits; this can change the affinity of the other sites for their respective ligands. The ability of the protein to change the shape of its binding site is attributed to the presence of a mix of flexible and stable segments in the...
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Amino acid biosynthesis is essential for cell growth, protein synthesis, and metabolic regulation. Cells generate essential and non-essential amino acids from metabolic intermediates to sustain vital biological functions. These intermediates originate from key metabolic pathways: glycolysis, the tricarboxylic acid (TCA) cycle, and the pentose phosphate pathway. Important precursors include α-ketoglutarate, pyruvate, oxaloacetate, phosphoenolpyruvate, and erythrose-4-phosphate, which provide...

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A High-Yield Streptomyces Transcription-Translation Toolkit for Synthetic Biology and Natural Product Applications
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Translating Nature's Library: The Bryostatins and Function-Oriented Synthesis.

Paul A Wender1, Brian A Loy, Adam J Schrier

  • 1Department of Chemistry Department of Chemical and Systems Biology Stanford University Stanford, CA 94305, USA.

Israel Journal of Chemistry
|June 5, 2012
PubMed
Summary
This summary is machine-generated.

Researchers developed novel compounds targeting protein kinase C (PKC) isozymes, leading to potential treatments for cancer, Alzheimer's disease, and HIV/AIDS. This work also advanced synthetic chemistry methods for function-oriented design.

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Area of Science:

  • Medicinal Chemistry
  • Drug Discovery
  • Synthetic Organic Chemistry

Background:

  • Protein kinase C (PKC) isozymes are implicated in various diseases.
  • Targeting specific isozymes offers therapeutic potential.
  • Developing novel compounds with defined biological functions is a key challenge.

Purpose of the Study:

  • To review computational, design, synthesis, and biological studies of a novel compound class.
  • To highlight the therapeutic potential of these compounds in oncology, neurodegenerative diseases, and infectious diseases.
  • To showcase advancements in synthesis-informed design for achieving specific biological functions.

Main Methods:

  • Computational modeling and in silico design of novel chemical entities.
  • Chemical synthesis of designed compounds and their analogs.
  • In vitro and in vivo biological evaluation of compound efficacy and mechanism of action.
  • Exploration of protein kinase C (PKC) isozyme inhibition.

Main Results:

  • Identification of preclinical candidates for cancer treatment.
  • Development of a first-in-class therapeutic approach for Alzheimer's disease.
  • Establishment of a promising strategy for HIV/AIDS eradication.
  • Demonstration of broad therapeutic potential beyond initial indications due to PKC isozyme targeting.

Conclusions:

  • The studied compounds represent a significant advancement in medicinal chemistry.
  • Function-oriented synthesis is a powerful strategy for drug discovery.
  • Targeting PKC isozymes holds promise for treating a range of challenging diseases.