GO_term: GO:0004707   

GO:0004707	Definition	Catalysis of the phosphorylation of proteins. Mitogen-activated protein kinase; a family of protein kinases that perform a crucial step in relaying signals from the plasma membrane to the nucleus. They are activated by a wide range of proliferation- or differentiation-inducing signals; activation is strong with agonists such as polypeptide growth factors and tumor-promoting phorbol esters, but weak (in most cell backgrounds) by stress stimuli.
	Term	MAP kinase activity
	Type	Molecular_function
	Child	Instance	GO:0008338
			GO:0016908
			GO:0016909
	Parent	Instance_of	GO:0004702
	Attributes_of (4)

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