overlaps expresses ct adult adult specialized Malpighian tubule cell adult Malpighian tubule principal cell adult Malpighian tubule primary cell FBbt:00005735 It can be distinguished from other tubule cells by its high expression of cut, but stem cells also express a low level of cut (Wang and Spradling, 2020). Type I (principal) cell of the adult Malpighian tubule. These are found throughout the tubule and outnumber other cell types overall (Singh et al., 2007). They transport cations and organic solutes (Singh et al., 2007). fly_anatomy.ontology adult Malpighian tubule Type I cell adult PC Malpighian tubule Type I cell