Minireview: protein arginine methylation of nonhistone proteins in transcriptional regulation

Young-Ho Lee1, Michael R Stallcup

  • 1Department of Biochemistry and Molecular Biology, Norris Comprehensive Cancer Center, Los Angeles, California 90089-9176, USA.

Insights

Protein arginine methylation, a key posttranslational modification, regulates gene transcription by affecting nonhistone proteins. This process is vital for cellular signaling and various physiological functions.

Area of Science:

  • Molecular Biology
  • Epigenetics
  • Biochemistry

Background:

  • Endocrine regulation involves gene transcription, often mediated by signal transduction pathways using protein posttranslational modifications.
  • While phosphorylation is well-studied, protein arginine methylation is emerging as a critical regulatory mechanism.
  • Protein arginine methyltransferases (PRMTs) modify numerous substrates, including histones and nonhistone proteins.

Purpose of the Study:

  • To review recent advancements in understanding the role of nonhistone protein methylation in transcriptional regulation.
  • To highlight the diverse functions of protein arginine methylation beyond histone modification.

Main Methods:

  • Literature review focusing on recent research in protein arginine methylation and transcription.
  • Analysis of studies investigating PRMTs and their nonhistone substrates.

Main Results:

  • Protein arginine methylation impacts nonhistone proteins like coactivators, transcription factors, and signal transducers.
  • Methylation influences protein interactions, DNA/RNA binding, stability, localization, and enzymatic activity.
  • PRMTs play a significant role in modulating gene transcription through nonhistone substrates.

Conclusions:

  • Protein arginine methylation is a critical regulator of transcription.
  • This modification is essential for various physiological and pathological processes.
  • Further research into nonhistone protein methylation will uncover new therapeutic targets.

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