a protein kinase of the STE20 family. Expressed primarily in hematopoietic organs, including bone marrow, spleen and thymus. Also expressed at very low levels in lung, kidney, mammary glands and small intestine. May play a role in hematopoietic lineage decisions and growth regulation. Positively regulated by PGE2 and a negative regulator of PGE2-induced FOS gene transcription. Note: This description may include information from UniProtKB.
Protein type: EC 188.8.131.52; Protein kinase, Ser/Thr (non-receptor); Protein kinase, STE; Kinase, protein; STE group; STE20 family; KHS subfamily
Cellular Component: membrane
Molecular Function: protein serine/threonine kinase activity; protein binding; MAP kinase kinase kinase kinase activity; ATP binding; small GTPase regulator activity; protein kinase activity
Biological Process: cell proliferation; peptidyl-serine phosphorylation; protein amino acid autophosphorylation; activation of MAPKKK activity; response to stress; protein amino acid phosphorylation; activation of JNK activity
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.