The cGMP-dependent protein kinase (cGKI) is important for the regulation of the smooth muscle tone and the platelet activity. In this work, the localisation of IRAG, a cGKI substrate, and the cGKI isoforms (Ialpha and Ibeta)was investigated in smooth muscle tissues. These proteins were detected in both vascular and visceral smooth muscle cells. Aditionally, IRAG was strongly expressed in the Plexus myentericus. A specific interaction between cGKIbeta and IRAG was found by a yeast two hybrid analysis and was confirmed with co-precipiation.
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The cGMP-dependent protein kinase (cGKI) is important for the regulation of the smooth muscle tone and the platelet activity. In this work, the localisation of IRAG, a cGKI substrate, and the cGKI isoforms (Ialpha and Ibeta)was investigated in smooth muscle tissues. These proteins were detected in both vascular and visceral smooth muscle cells. Aditionally, IRAG was strongly expressed in the Plexus myentericus. A specific interaction between cGKIbeta and IRAG was found by a yeast two hybrid anal...
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