has_participant has participant regulation of protein phosphorylation positive regulation of protein phosphorylation positive regulation of peptidyl-tyrosine phosphorylation up regulation of peptidyl-tyrosine phosphorylation GO:0050731 Any process that activates or increases the frequency, rate or extent of the phosphorylation of peptidyl-tyrosine. upregulation of peptidyl-tyrosine phosphorylation up-regulation of peptidyl-tyrosine phosphorylation biological_process activation of peptidyl-tyrosine phosphorylation stimulation of peptidyl-tyrosine phosphorylation tyrosine-protein kinase ABL1 (human) intercellular adhesion molecule 1 (human) tyrosine-protein kinase Yes (human) interleukin-6 receptor subunit alpha (human) proto-oncogene tyrosine-protein kinase Src (human) 5-hydroxytryptamine receptor 2A (human) serine/threonine-protein kinase mTOR (human)