has_participant has participant positive regulation of protein kinase activity regulation of protein serine/threonine kinase activity positive regulation of protein serine/threonine kinase activity GO:0071902 mah biological_process Any process that increases the rate, frequency, or extent of protein serine/threonine kinase activity. 2010-09-15T03:09:57Z macrophage colony-stimulating factor 1 receptor (human) calmodulin-1 (human) proto-oncogene tyrosine-protein kinase Src (human) dual specificity mitogen-activated protein kinase kinase 2 (human) dual specificity mitogen-activated protein kinase kinase 1 (human)