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Updated: May 30, 2026

Identification of Novel CK2 Kinase Substrates Using a Versatile Biochemical Approach
11:11

Identification of Novel CK2 Kinase Substrates Using a Versatile Biochemical Approach

Published on: February 21, 2019

Structure-function analysis of the beta regulatory subunit of protein kinase CK2 by targeting embryonic stem cell

Léa Ziercher1, Odile Filhol, Béatrice Laudet

  • 1INSERM, U873, CEA, iRTSV/LTS, 17, Av. des Martyrs, 38054 Grenoble, France.

Molecular and Cellular Biochemistry
|August 24, 2011
PubMed

Insights

Protein kinase CK2 beta subunit (CK2β) is vital for embryonic stem cell (ES cell) survival. Specific domains of CK2β are crucial for maintaining ES cell homeostasis and pluripotency.

Area of Science:

  • Stem cell biology
  • Molecular and cell biology
  • Biochemistry

Background:

  • Stem cell maintenance and pluripotency rely on both external signals and internal regulators.
  • Protein kinase CK2 beta subunit (CK2β) plays a role in cellular processes.

Purpose of the Study:

  • To investigate the role of specific domains of CK2β in embryonic stem cell (ES cell) homeostasis.
  • To understand the structural determinants governing CK2β's function in ES cells.

Main Methods:

  • Utilized an in vitro genetic conditional approach.
  • Analyzed the impact of CK2β depletion on ES cell viability.
  • Investigated CK2β function in neural stem/progenitor cells (NSCs).

Main Results:

  • Depletion of CK2β gene in ES cells resulted in a viability defect.
  • CK2β was identified as a positive regulator of neural stem/progenitor cell (NSC) proliferation and multipotency.
  • Specific domains of CK2β, crucial for regulating catalytic subunits, were identified as key for ES cell homeostasis.

Conclusions:

  • CK2β is essential for maintaining ES cell homeostasis.
  • The regulatory domains of CK2β are critical structural determinants for its function in ES cells.
  • CK2β's role extends to regulating neural stem cell proliferation and multipotency.

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