Protein Kinase A Regulatory Subunit Interacts with P-Type ATPases in Trypanosoma cruzi

Yi Bao Department of Pathology and Department of Medicine, Albert Einstein College of Medicine, Bronx, New York; Department of Molecular and Cellular Parasitology, Juntendo University School of Medicine, Tokyo, Japan

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Louis M. Weiss Department of Pathology and Department of Medicine, Albert Einstein College of Medicine, Bronx, New York; Department of Molecular and Cellular Parasitology, Juntendo University School of Medicine, Tokyo, Japan

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Muneaki Hashimoto Department of Pathology and Department of Medicine, Albert Einstein College of Medicine, Bronx, New York; Department of Molecular and Cellular Parasitology, Juntendo University School of Medicine, Tokyo, Japan

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Takeshi Nara Department of Pathology and Department of Medicine, Albert Einstein College of Medicine, Bronx, New York; Department of Molecular and Cellular Parasitology, Juntendo University School of Medicine, Tokyo, Japan

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Huan Huang Department of Pathology and Department of Medicine, Albert Einstein College of Medicine, Bronx, New York; Department of Molecular and Cellular Parasitology, Juntendo University School of Medicine, Tokyo, Japan

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Cyclic AMP–protein kinase A (PKA) signaling is important for the growth and differentiation of Trypanosoma cruzi. Immunofluorescence suggests that PKA can associate with the plasma membrane of trypomastigotes. We found that the PKA regulatory subunit interacts with several P-type ATPases. These P-type ATPases may play a role in anchoring PKA to the plasma membrane in T. cruzi.

Author Notes

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