Sideroblastic Anemia with B-Cell Immunodeficiency, Periodic Fevers, and Developmental Delay, also known as congenital sideroblastic anemia-b-cell immunodeficiency-periodic fever-developmental delay syndrome, is related to microcytic anemia and sideroblastic anemia, and has symptoms including recurrent fevers An important gene associated with Sideroblastic Anemia with B-Cell Immunodeficiency, Periodic Fevers, and Developmental Delay is TRNT1 (TRNA Nucleotidyl Transferase 1), and among its related pathways/superpathways are tRNA processing and Mitochondrial iron-sulfur cluster biogenesis. Affiliated tissues include b cells and bone marrow, and related phenotypes are growth delay and brittle hair