tokens: The dual specificity kinases mitogen activated protein kinase ( MAPK ) kinase ( MKK ) 7 and MKK4 are the only molecules known to directly activate the stress kinases stress activated protein kinases ( SAPKs ) / c-Jun N-terminal kinases ( JNKs ) in response to environmental or mitogenic stimuli .
folded_tokens: the dual specificity kinase mitogen activate protein kinase ( mapk ) kinase ( mkk ) 7 and mkk4 be the only molecule know to directly activate the stress kinase stress activate protein kinase ( sapk ) / c-jun n-terminal kinase ( jnk ) in response to environmental or mitogenic stimulus .