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Published on: March 27, 2020
HIPK2: a versatile switchboard regulating the transcription machinery and cell death
Marco A Calzado1, Florian Renner, Ana Roscic
1Institute of Biochemistry, Medical Faculty, Justus-Liebig-University, Giessen, Germany.
Abstract:
Homeodomain interacting protein kinase 2 (HIPK2) is an evolutionary conserved serine/threonine kinase that regulates gene expression by phosphorylation of transcription factors and accessory components of the transcription machinery. HIPK2 is activated in response to DNA-damaging agents or morphogenic signals and accordingly HIPK2-guided gene expression programs trigger differentiation and development or alternatively apoptosis. The kinase contributes to the regulation of remarkably diverse pathways such as p53 activation or Wnt signaling. Here we discuss recent findings from biochemical and functional experiments that allow a deeper understanding of the pleiotropic effects mediated by HIPK2.
Insights
Homeodomain interacting protein kinase 2 (HIPK2) regulates gene expression and cellular fate, including differentiation, development, and apoptosis. Recent studies reveal its diverse roles in pathways like p53 and Wnt signaling.
Area of Science:
- Molecular Biology
- Cell Signaling
- Gene Regulation
Background:
- Homeodomain interacting protein kinase 2 (HIPK2) is a conserved kinase.
- HIPK2 regulates gene expression through phosphorylation.
- It is activated by DNA damage and morphogenic signals.
Purpose of the Study:
- To review recent biochemical and functional findings on HIPK2.
- To deepen the understanding of HIPK2's diverse biological effects.
Main Methods:
- Biochemical experiments
- Functional assays
- Literature review of recent findings
Main Results:
- HIPK2 modulates gene expression programs.
- HIPK2 influences cell differentiation, development, and apoptosis.
- HIPK2 is involved in p53 and Wnt signaling pathways.
Conclusions:
- HIPK2 plays a pleiotropic role in cellular processes.
- Understanding HIPK2's mechanisms is crucial for comprehending diverse signaling pathways.
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