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Updated: Jun 17, 2026

Studying RNA Interactors of Protein Kinase RNA-Activated during the Mammalian Cell Cycle
Published on: March 5, 2019
An emerging role for p21-activated kinases (Paks) in viral infections
Celine Van den Broeke1, Maria Radu, Jonathan Chernoff
1Department of Virology, Parasitology and Immunology, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820 Merelbeke, Belgium.
Abstract:
p21-activated protein kinases (Paks) are cytosolic serine/threonine protein kinases that act as effectors for small (p21) GTPases of the Cdc42 and Rac families. It has long been established that Paks play a major role in a host of vital cellular functions such as proliferation, survival and motility, and abnormal Pak function is associated with a number of human diseases. Here, we discuss emerging evidence that these enzymes also play a major role in the entry, replication and spread of many important pathogenic human viruses, including HIV. Careful assessment of the potential role of Paks in antiviral immunity will be pivotal to evaluate thoroughly the potential of agents that inhibit Pak as a new class of anti-viral therapeutics.
Insights
p21-activated protein kinases (Paks) are crucial for cell functions and viral infections. Inhibiting Paks may offer a new strategy for developing antiviral therapies against viruses like HIV.
Area of Science:
- Cell Biology
- Virology
- Biochemistry
Background:
- p21-activated protein kinases (Paks) are serine/threonine kinases involved in cellular processes like proliferation, survival, and motility.
- Abnormal Pak function is linked to various human diseases.
- Paks are effectors for Cdc42 and Rac GTPases.
Purpose of the Study:
- To discuss the emerging role of Paks in viral pathogenesis.
- To explore the potential of Pak inhibitors as antiviral therapeutics.
Main Methods:
- Literature review and synthesis of existing research on Paks and viral infections.
Main Results:
- Paks play a significant role in the entry, replication, and spread of numerous human pathogenic viruses, including HIV.
- Evidence suggests Paks are involved in antiviral immunity.
Conclusions:
- Paks are critical in viral infection cycles.
- Targeting Paks presents a promising avenue for novel antiviral drug development.
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