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Covalent Modifications of RUNX Proteins: Structure Affects Function.

Ezra Blumenthal1, Sarah Greenblatt1, Guang Huang2

  • 1Sylvester Comprehensive Cancer Center, Miami, FL, 33136, USA.

Advances in Experimental Medicine and Biology
|March 17, 2017
PubMed
Summary

Post-translational modifications (PTMs) are crucial for RUNX transcription factor function, impacting DNA binding, activity, and stability. Dysregulation of RUNX PTMs contributes to various diseases, particularly hematopoietic malignancies.

Keywords:
AcetylationAcute Myeloid LeukemiaCBFβCleidocranial DysplasiaFPD/AMLMethylationPhosphorylationPost-Translational ModificationsRUNX1RUNX2RUNX3Transcriptional ActivationTranscriptional RepressionUbiquitylation

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Area of Science:

  • Molecular Biology
  • Gene Regulation
  • Cancer Biology

Background:

  • RUNX transcription factors are key regulators of tissue-specific gene expression.
  • Their functions are modulated by various post-translational modifications (PTMs).

Purpose of the Study:

  • To review how PTMs influence RUNX protein properties.
  • To discuss the role of PTMs in disease pathogenesis.
  • To highlight RUNX1's involvement in hematopoietic malignancies.

Main Methods:

  • Literature review of PTMs affecting RUNX factors.
  • Analysis of RUNX1 alterations in cancer.
  • Review of enzymes catalyzing RUNX PTMs.

Main Results:

  • PTMs critically regulate RUNX DNA binding, transcriptional activity, protein stability, localization, and interactions.
  • Disruption of these PTMs can lead to disease states.
  • Altered RUNX1 and its modifying enzymes are implicated in hematopoietic malignancies.

Conclusions:

  • PTMs are essential for normal RUNX function.
  • Aberrant PTMs of RUNX proteins are linked to disease, especially blood cancers.
  • Targeting RUNX PTMs may offer therapeutic strategies.