a member of the MAPKAPK family of protein kinases. Activated by growth inducers and stress stimulation of cells. In vitro studies demonstrated that ERK, p38 MAP kinase and Jun N-terminal kinase were all able to phosphorylate and activate this kinase, which suggested the role of this kinase as an integrative element of signaling in both mitogen and stress responses. This kinase was reported to interact with, phosphorylate and repress the activity of E47, which is a basic helix-loop-helix transcription factor known to be involved in the regulation of tissue-specific gene expression and cell differentiation. Note: This description may include information from UniProtKB.
Protein type: Protein kinase, CAMK; Protein kinase, Ser/Thr (non-receptor); Kinase, protein; EC 184.108.40.206; CAMK group; MAPKAPK family; MAPKAPK subfamily
SS: The number of records in which this modification site was determined using site-specific methods. SS methods include amino acid sequencing, site-directed mutagenesis, modification site-specific antibodies, specific MS strategies, etc.