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CATH Superfamily 3.30.70.260

ACT 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 21277: Serine/threonine-protein kinase HT1

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
Non-specific serine/threonine protein kinase. [EC: 2.7.11.1]
ATP + a protein = ADP + a phosphoprotein.
  • This is a heterogeneous group of serine/threonine protein kinases that do not have an activating compound and are either non-specific or their specificity has not been analyzed to date.
  • Formerly EC 2.7.1.37 and EC 2.7.1.70.
 9 A0A0B2PVF1 A0A0B2RKW1 A0A0B2RSI0 A0A0B2RUR1 A0A0B2SAV1 F4JTP5 I1LI74 O22558 Q8RWL6
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.
 3 A0A0B2SI89 A0A151TCQ4 A0A151TQA9
Non-specific protein-tyrosine kinase. [EC: 2.7.10.2]
ATP + a [protein]-L-tyrosine = ADP + a [protein]-L-tyrosine phosphate.
  • Unlike EC 2.7.10.1, this protein-tyrosine kinase does not have a transmembrane domain.
  • In the human genome, 32 non-specific protein-tyrosine kinases have been identified and these can be divided into 10 families.
  • Formerly EC 2.7.1.112.
 2 B9R8H0 B9S5G6