Previous studies have also reported that genus Mucispirillum showed the an association with chemical-induced or Citrobacter rodentium-induced colitis in mice (Loy et al., 2017) and Sutterella species were associated with low secretory IgA levels due to their ability to degrade of both IgA and IgA-associated peptides (Levy et al., 2017). The gene discussed is CD79A; the disease is colitis.