passages.id: split_4_test_504_passage
passages.type: progene_text
passages.text: Consistent with action in a common pathway , mom-4 and lit-1 exhibit similar mutant phenotypes and encode components of the mitogen - activated protein kinase ( MAPK ) pathway that are homologous to vertebrate transforming - growth - factor-beta-activated kinase ( TAK1 ) and NEMO - like kinase ( NLK ) , respectively .