passages.id: split_8_test_3527_passage
passages.type: progene_text
passages.text: The presence of dual pathways for chemotactic signal transduction is consistent with the residual signaling observed in previous studies of cheW mutants ( D. W. Hanlon , L. MÃ?Â¡rques - MagaÃ?Â±a , P. B. Carpenter , M. J. Chamberlin , and G. W. Ordal , J. Biol. Chem. 267 : 12055 - 12060 , 1992 ) .