The loss of proliferation in response to the Leb-glycoconjugate and the tumor mucin sample was reversed by deletion of babA, which also resulted in a decrease in formation of aggregates (Figs 4 and 5A,C,E: an image of the aggregates formed after culture of J99 with the tumor mucin has been published ref. 21). Here, MUC5AC is linked to neoplasm.