Caldesmon-phosphatase
In enzymology, a caldesmon-phosphatase (EC 3.1.3.55) is an enzyme that catalyzes the chemical reaction
- caldesmon phosphate + H2O caldesmon + phosphate
| caldesmon-phosphatase | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Identifiers | |||||||||
| EC number | 3.1.3.55 | ||||||||
| CAS number | 93229-71-1 | ||||||||
| Databases | |||||||||
| IntEnz | IntEnz view | ||||||||
| BRENDA | BRENDA entry | ||||||||
| ExPASy | NiceZyme view | ||||||||
| KEGG | KEGG entry | ||||||||
| MetaCyc | metabolic pathway | ||||||||
| PRIAM | profile | ||||||||
| PDB structures | RCSB PDB PDBe PDBsum | ||||||||
| Gene Ontology | AmiGO / QuickGO | ||||||||
| |||||||||
Thus, the two substrates of this enzyme are caldesmon phosphate and H2O, whereas its two products are caldesmon and phosphate.
This enzyme belongs to the family of hydrolases, specifically those acting on phosphoric monoester bonds. The systematic name of this enzyme class is caldesmon-phosphate phosphohydrolase. Other names in common use include SMP-I, and smooth muscle caldesmon phosphatase.
References
- Ngai PK, Walsh MP (1984). "Inhibition of smooth muscle actin-activated myosin Mg2+-ATPase activity by caldesmon". J. Biol. Chem. 259 (22): 13656–9. PMID 6150036.
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