cd05571: STKc_PKB (this model, PSSM-Id:173662 is obsolete and has been replaced by 270723)
Catalytic domain of the Protein Serine/Threonine Kinase, Protein Kinase B
Serine/Threonine Kinases (STKs), Protein Kinase B (PKB) or Akt subfamily, catalytic (c) domain. STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. The PKB subfamily is part of a larger superfamily that includes the catalytic domains of other protein STKs, protein tyrosine kinases, RIO kinases, aminoglycoside phosphotransferase, choline kinase, and phosphoinositide 3-kinase (PI3K). There are three PKB isoforms from different genes, PKB-alpha (or Akt1), PKB-beta (or Akt2), and PKB-gamma (or Akt3). PKB contains an N-terminal pleckstrin homology (PH) domain and a C-terminal catalytic domain. It is activated downstream of PI3K and plays important roles in diverse cellular functions including cell survival, growth, proliferation, angiogenesis, motility, and migration. PKB also has a central role in a variety of human cancers, having been implicated in tumor initiation, progression, and metastasis.
Jiyao W et al.(2023). "The conserved domain database in 2023.",