cd05592: STKc_nPKC_theta_delta (this model, PSSM-Id:173683 is obsolete and has been replaced by 270744)
Catalytic domain of the Protein Serine/Threonine Kinases, Novel Protein Kinase C theta and delta
Serine/Threonine Kinases (STKs), Novel Protein Kinase C (nPKC), theta and delta-like isoforms, catalytic (c) domain. STKs catalyze the transfer of the gamma-phosphoryl group from ATP to serine/threonine residues on protein substrates. The nPKC 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. PKCs are classified into three groups (classical, atypical, and novel) depending on their mode of activation and the structural characteristics of their regulatory domain. nPKCs are calcium-independent, but require DAG (1,2-diacylglycerol) and phosphatidylserine (PS) for activity. There are four nPKC isoforms, delta, epsilon, eta, and theta. PKC-theta is selectively expressed in T-cells and plays an important and non-redundant role in several aspects of T-cell biology. PKC-delta plays a role in cell cycle regulation and programmed cell death in many cell types.
Lu S et al.(2020). "CDD/SPARCLE: the conserved domain database in 2020.",