Histone H2B monoubiquitination drives sexual commitment in malaria parasites.
Histone H2B monoubiquitination by Rad6B-Tex1 complex is essential for sexual conversion in Plasmodium parasites, influencing transmission to mosquitoes.
- Why it matters: Understanding the molecular mechanisms behind malaria parasite sexual differentiation is crucial for developing interventions to block transmission and control the disease.
- What they did: Using CRISPR-Cas9 mutagenesis, researchers identified Rad6B and Tex1 enzymes as key regulators of gametocyte formation, demonstrating their role in catalyzing histone H2B monoubiquitination and subsequent epigenetic modifications.
- The result: Disruption of Rad6B or Tex1 impairs gametocyte production and transmission, highlighting the Rad6B-Tex1 complex as a potential target for transmission-blocking strategies.