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Updated: Jul 5, 2025

Identification of Cyclin-dependent Kinase 1 Specific Phosphorylation Sites by an In Vitro Kinase Assay
Published on: May 3, 2018
Druggable cavities and allosteric modulators of the cell division cycle 7 (CDC7) kinase
Elisa Rojas-Prats1, Loreto Martinez-Gonzalez1,2, Carmen Gil1
1Centro de Investigaciones Biológicas -Margarita Salas-CSIC, Madrid, Spain.
Abstract:
Cell division cycle 7 kinase (CDC7) has been found overexpressed in many cancer cell lines being also one of the kinases involved in the nuclear protein TDP-43 phosphorylation in vivo. Thus, inhibitors of CDC7 are emerging drug candidates for the treatment of oncological and neurodegenerative unmet diseases. All the known CDC7 inhibitors are ATP-competitives, lacking of selectivity enough for success in clinical trials. As allosteric sites are less conserved among kinase proteins, discovery of allosteric modulators of CDC7 is a great challenge and opportunity in this field.Using different computational approaches, we have here identified new druggable cavities on the human CDC7 structure and subsequently selective CDC7 inhibitors with allosteric modulation mainly targeting the pockets where the interaction between this kinase and its activator DBF4 takes place.
Insights
Researchers identified novel allosteric inhibitors for cell division cycle 7 kinase (CDC7), a target for cancer and neurodegenerative diseases. These selective CDC7 modulators offer a promising new therapeutic avenue beyond traditional ATP-competitive drugs.
Area of Science:
- Biochemistry
- Medicinal Chemistry
- Drug Discovery
Background:
- Cell division cycle 7 kinase (CDC7) is overexpressed in cancers and implicated in TDP-43 phosphorylation, a hallmark of neurodegenerative diseases.
- Existing CDC7 inhibitors are ATP-competitive, limiting their clinical efficacy due to insufficient selectivity.
- Allosteric modulation of CDC7 presents a significant opportunity for developing more selective and effective therapeutics.
Purpose of the Study:
- To identify novel druggable allosteric sites on human CDC7.
- To discover selective CDC7 inhibitors that modulate its activity through allosteric mechanisms.
- To explore new therapeutic strategies for oncological and neurodegenerative disorders targeting CDC7.
Main Methods:
- Utilized computational approaches to analyze the human CDC7 structure.
- Identified and characterized new druggable cavities within the CDC7 protein.
- Designed and proposed allosteric modulators targeting specific interaction pockets.
Main Results:
- Discovered novel allosteric binding sites on the human CDC7 kinase.
- Identified potential selective CDC7 inhibitors with allosteric modulation capabilities.
- Targeted pockets involved in the interaction between CDC7 and its activator DBF4.
Conclusions:
- Computational methods can effectively identify allosteric sites and inhibitors for CDC7.
- Allosteric CDC7 inhibitors offer a promising alternative to ATP-competitive drugs.
- This research paves the way for developing novel treatments for cancer and neurodegenerative diseases.
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