FUNCTION: Inhibitor of protein-phosphatase 1. This protein may be important in hormonal control of glycogen metabolism. Hormones that elevate intracellular cAMP increase I-1 activity in many tissues. I-1 activation may impose cAMP control over proteins that are not directly phosphorylated by PKA. Fo...
FUNCTION: Inhibitor of protein-phosphatase 1. This protein may be important in hormonal control of glycogen metabolism. Hormones that elevate intracellular cAMP increase I-1 activity in many tissues. I-1 activation may impose cAMP control over proteins that are not directly phosphorylated by PKA. Following a rise in intracellular calcium, I-1 is inactivated by calcineurin (or PP2B). Does not inhibit type-2 phosphatases.
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GO - Biological processes (BP):
glycogen metabolic process [GO:0005977]; intracellular signal transduction [GO:0035556]...
glycogen metabolic process [GO:0005977]; intracellular signal transduction [GO:0035556]
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GO - Molecular function (MF):
protein serine/threonine phosphatase inhibitor activity [GO:0004865]...
protein serine/threonine phosphatase inhibitor activity [GO:0004865]
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GO - Cellular component (CC):
cytoplasm [GO:0005737]...
cytoplasm [GO:0005737]
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