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cGK2/PRKG2, also known as cGMP-dependent protein kinase 2, is 762 amino acids long and approximately 87kDa. cGK2/PRKG2 is a protein kinase that is highly expressed in the brain, intestine and lung. Current research surrounding cGK2/PRKG2 has shown a potential link with several disorders and diseases including cystic fibrosis, gout, malaria, lung cancer, alcoholism, diarrhea, and hyperphenylalaninemia. cGK2/PRKG2 may also interact with PTS, LASP1, YWHAB, MYLK, and PLCB3 in pathways such as cGMP signaling, platelet homeostasis, EDNRB signaling, signaling in gap junctions, nitric oxide metabolism, and eNOS activation and regulation.