The name of this superfamily has been modified since the most recent official CATH+ release (v4_2_0). At the point of the last release, this superfamily was named:

"
PPM-type phosphatase domain
".

Functional Families

Overview of the Structural Clusters (SC) and Functional Families within this CATH Superfamily. Clusters with a representative structure are represented by a filled circle.
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FunFam 11505: Protein serine/threonine phosphatase 2C

There are 3 EC terms in this cluster

Please note: EC annotations are assigned to the full protein sequence rather than individual protein domains. Since a given protein can contain multiple domains, it is possible that some of the annotations below come from additional domains that occur in the same protein, but have been classified elsewhere in CATH.

Note: The search results have been sorted with the annotations that are found most frequently at the top of the list. The results can be filtered by typing text into the search box at the top of the table.

EC Term Annotations Evidence
Protein-serine/threonine phosphatase. [EC: 3.1.3.16]
[a protein]-serine/threonine phosphate + H(2)O = [a protein]- serine/threonine + phosphate.
  • A group of enzymes removing the serine- or threonine-bound phosphate group from a wide range of phosphoproteins, including a number of enzymes which have been phosphorylated under the action of a kinase (cf. EC 3.1.3.48).
  • The spleen enzyme also acts on phenolic phosphates and phosphamides (cf. EC 3.9.1.1).
48 A0A0D3GSI2 A0A0D9ZY08 A0A0E0HDB3 A0A0E0IDY2 A0A0E0NBX1 A0A0E0PLB4 A0A178UR20 A0A178UYC5 A0A178VD51 A0A178VLG1
(38 more...)
CAMP-dependent protein kinase. [EC: 2.7.11.11]
ATP + a protein = ADP + a phosphoprotein.
  • cAMP is required to activate this enzyme.
  • The inactive holoenzyme of cAMP-dependent protein kinase is a tetramer composed of two regulatory (R) and two catalytic (C) subunits.
  • cAMP causes the dissociation of the inactive holoenzyme into a dimer of regulatory subunits bound to four cAMP molecules and two free monomeric catalytic subunits (i.e. R(2)C(2) + 4 cAMP = R(2)(cAMP)(4) + 2 C).
  • Formerly EC 2.7.1.37.
3 A0A0B2PZZ1 A0A0B2SL62 K7LEU8
CGMP-dependent protein kinase. [EC: 2.7.11.12]
ATP + a protein = ADP + a phosphoprotein.
  • cGMP is required to activate this enzyme.
  • The enzyme occurs as a dimer in higher eukaryotes.
  • The C-terminal region of each polypeptide chain contains the catalytic domain that includes the ATP and protein substrate binding sites.
  • This domain catalyzes the phosphorylation by ATP to specific serine or threonine residues in protein substrates.
  • The enzyme also has two allosteric cGMP-binding sites (sites A and B).
  • Binding of cGMP causes a conformational change that is associated with activation of the kinase.
  • Formerly EC 2.7.1.37.
1 B9RKK9