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CATH Superfamily 1.25.40.10

Tetratricopeptide repeat domain

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: waiting to be named.

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 55564: Protein kinase at 92B, isoform B

There are 2 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 kinase. [EC: 2.7.11.25]
ATP + a protein = ADP + a phosphoprotein.
  • This enzyme phosphorylates and activates its downstream protein kinase, EC 2.7.12.2, but requires MAPKKKK for activation.
  • Some members of this family can be activated by p21-activated kinases (PAK/STE20) or Ras.
  • While c-Raf and c-Mos activate the classical MAPK/ERK pathway, MEKK1 and MEKK2 preferentially activate the c-Jun N-terminal protein kinase(JNK)/stress-activated protein kinase (SAPK) pathway.
  • 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.
  • Formerly EC 2.7.1.37.
 1 Q7KSB7
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.
 1 Q7KSB7