In particular, zebrafish mutations in the MYO5B homolog goosepimples (gsp) in zebrafish show microvillus atrophy, microvillus inclusions, and subapical accumulation of secretory vesicles as is seen in MVID patients and mammalian models (Sidhaye et al., 2016). The gene discussed is MYO5B; the disease is microvillus inclusion disease.