MUC5AC and neoplasm: Bacterial genera with the most interactions in tumor samples with a mixed mucin phenotype were Alloprevotella, Fusobacterium, Sediminibacterium, Neisseria, Veillonella, Reyranella, Rothia, Streptococcus, Haemophilus, Parvimonas, Prevotella, and Helicobacter (Fig. 5C; Table S5), whereas Rothia, Prevotella, and Helicobacter contributed more in samples with a null mucin phenotype (Fig. 5D; Table S5).