passages.id: split_8_test_26_passage
passages.type: progene_text
passages.text: The presence of carbohydrates in the aqueous phase led to a dose - dependent block of ion transport through the channel , similar to that found for LamB ( maltoporin ) of E. coli and Salmonella typhimurium , which means that BglH is a porin specific for the uptake of carbohydrates .