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Go protein subunit Goα and the secretory process of the natriuretic peptide hormones ANF and BNP.

J Mol Endocrinol

June 2015

Cardiovascular Endocrinology LaboratoryUniversity of Ottawa Heart Institute, 40 Ruskin Street, Ottawa, Ontario, Canada K1Y 4W7Department of Pathology and Laboratory MedicineFaculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada K1H 8M5Experimental Therapeutics and MetabolismMcGill University Health Centre-Research Institute, and Departments of Medicine, Physiology and Human Genetics, McGill University, Montreal, Quebec, CanadaToronto General Hospital200 Elizabeth Street, Toronto, Ontario, Canada M5G 2C4 Cardiovascular Endocrinology LaboratoryUniversity of Ottawa Heart Institute, 40 Ruskin Street, Ottawa, Ontario, Canada K1Y 4W7Department of Pathology and Laboratory MedicineFaculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada K1H 8M5Experimental Therapeutics and MetabolismMcGill University Health Centre-Research Institute, and Departments of Medicine, Physiology and Human Genetics, McGill University, Montreal, Quebec, CanadaToronto General Hospital200 Elizabeth Street, Toronto, Ontario, Canada M5G 2C4

Expression of the G protein subunit Goα has been shown to be prominent in the atria of the rat heart and to be significantly associated with atrial natriuretic factor (ANF)-containing atrial-specific secretory granules by immunocytochemistry. In addition, differential expression profile analysis using oligonucleotide arrays has shown that the Goα isoform 1 (Goα1) is 2.3-fold more abundant in the atria than it is in the ventricles.

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