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:

"
Transferase(Phosphotransferase) domain 1
".

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 78985: Mitogen-activated protein kinase kinase

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
Mitogen-activated protein kinase kinase. [EC: 2.7.12.2]
ATP + a protein = ADP + a phosphoprotein.
  • A dual-specific protein kinase and requires mitogen-activated protein kinase kinase kinase (MAPKKK) for activation.
  • It is required for activation of EC 2.7.11.24.
  • Phosphorylation of MEK1 by Raf involves phosphorylation of two serine residues.
  • Mitogen-activated protein kinase (MAPK) signal transduction pathways are among the most widespread mechanisms of cellular regulation.
  • Mammalian MAPK pathways can be recruited by a wide variety of stimuli including hormones (e.g. insulin and growth hormone), mitogens (e.g. epidermal growth factor and platelet-derived growth factor), vasoactive peptides (e.g. angiotensin-II and endothelin), inflammatory cytokines of the tumor necrosis factor (TNF) family and environmental stresses such as osmotic shock, ionizing radiation and ischemeic injury.
330 A0A024R5Y2 A0A024R5Y2 A0A096NU44 A0A096NU44 A0A096P364 A0A096P364 A0A0B2P7F0 A0A0B2P7F0 A0A0B2PGE1 A0A0B2PGE1
(320 more...)
Protein kinase C. [EC: 2.7.11.13]
ATP + a protein = ADP + a phosphoprotein.
  • A family of serine- and threonine-specific protein kinases that depend on lipids for activity.
  • They can be activated by calcium but have a requirement for the second messenger diacylglycerol.
  • Members of this group of enzymes phosphorylate a wide variety of protein targets and are known to be involved in diverse cell- signaling pathways.
  • Members of the protein kinase C family also serve as major receptors for phorbol esters, a class of tumor promoters.
  • Formerly EC 2.7.1.37.
16 B4IGM0 B4IGM0 B4NUD3 B4NUD3 M9PEF9 M9PEF9 M9PH06 M9PH06 O61444 O61444
(6 more...)
DNA-directed RNA polymerase. [EC: 2.7.7.6]
Nucleoside triphosphate + RNA(n) = diphosphate + RNA(n+1).
  • Catalyzes DNA-template-directed extension of the 3'-end of an RNA strand by one nucleotide at a time.
  • Can initiate a chain de novo.
  • In eukaryotes three forms of the enzyme have been distinguished on the basis of sensitivity of alpha-amanitin, and the type of RNA synthesized.
  • See also EC 2.7.7.19 and EC 2.7.7.48.
2 A0A183CDM6 A0A183CDM6