Mooren's Ulcer, also known as mooren ulcer, is related to keratitis, hereditary and keratoconjunctivitis. An important gene associated with Mooren's Ulcer is S100A12 (S100 Calcium Binding Protein A12), and among its related pathways/superpathways are Innate Immune System and Cytokine Signaling in Immune system. Affiliated tissues include eye and bone marrow, and related phenotypes are immune system and hematopoietic system