Caldesmon-phosphatase
Definition:
EC Tree > 3 Hydrolases > 3.1 Acting on ester bonds > 3.1.3 Phosphoric-monoester hydrolases > 3.1.3.55 caldesmon-phosphatase
Caldesmon-phosphatase is a smooth-muscle regulatory phosphatase that dephosphorylates phosphorylated caldesmon into unphosphorylated caldesmon and inorganic phosphate; dephosphorylation activates the calmodulin- and actin-binding ability of caldesmon, thereby fine-tuning thin-filament regulation during smooth-muscle contraction. It appears in viruses and cellular organisms and belongs to the PPP family of Ser/Thr phosphatases.
Caldesmon-phosphatase is a smooth-muscle regulatory phosphatase that dephosphorylates phosphorylated caldesmon into unphosphorylated caldesmon and inorganic phosphate; dephosphorylation activates the calmodulin- and actin-binding ability of caldesmon, thereby fine-tuning thin-filament regulation during smooth-muscle contraction. It appears in viruses and cellular organisms and belongs to the PPP family of Ser/Thr phosphatases.
References:
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