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Biosynthesis of Nucleic Acids01:28

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Nucleic acid biosynthesis is a fundamental biochemical process that produces the purine and pyrimidine nucleotides essential for DNA and RNA synthesis. This pathway maintains a balanced nucleotide pool, preventing imbalances that could jeopardize genetic integrity and cellular function. Given the crucial role of nucleotides, their synthesis is tightly regulated to ensure proper cellular homeostasis.Purine BiosynthesisThe biosynthesis of purine nucleotides begins with ribose-5-phosphate, a...
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DNA Methyltransferases: From Evolution to Clinical Applications.

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DNA methylation, catalyzed by DNA methyltransferases (DNMTs), is a crucial epigenetic process conserved across life. This review explores DNMTs biology, functions, and novel inhibition strategies for research and clinical applications.

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5-methylcytosineDNA methylationDNA methyltransferasesDNMTs isoformscancer biologyepigenetics

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Area of Science:

  • Epigenetics
  • Molecular Biology
  • Biochemistry

Background:

  • DNA methylation is a fundamental epigenetic mechanism essential for cellular processes from development to disease.
  • DNA methyltransferases (DNMTs) are enzymes that catalyze DNA methylation, a conserved process across all kingdoms of life.
  • DNMTs play critical roles in genomic stability, gene regulation, and are implicated in various pathologies.

Purpose of the Study:

  • To provide a comprehensive overview of DNA methyltransferases (DNMTs).
  • To explore the diverse biological functions and evolutionary conservation of DNMTs.
  • To discuss emerging strategies for inhibiting DNMT activity in biological and clinical research.

Main Methods:

  • Literature review of DNA methyltransferases (DNMTs) and their roles.
  • Analysis of conserved evolutionary aspects of DNA methylation.
  • Examination of current and novel approaches for DNMT inhibition.

Main Results:

  • DNMTs are a conserved enzyme family (DNMT1, DNMT2, DNMT3) vital across life's kingdoms.
  • DNMTs regulate crucial cellular functions, with dysregulation linked to disease.
  • Novel inhibition strategies, including non-coding RNAs and chemical compounds, are emerging.

Conclusions:

  • DNA methyltransferases are central to epigenetic regulation and genomic stability.
  • Understanding DNMTs' biology is key to addressing pathologies linked to transcription deregulation.
  • Inhibitory mechanisms targeting DNMTs hold significant promise for biological, clinical, and industrial research.