Hypobetalipoproteinemia, Familial, 1, also known as hypobetalipoproteinemia, is related to chylomicron retention disease and abetalipoproteinemia, and has symptoms including ataxia An important gene associated with Hypobetalipoproteinemia, Familial, 1 is APOB (Apolipoprotein B), and among its related pathways/superpathways are Metabolism and Transport of inorganic cations/anions and amino acids/oligopeptides. The drugs DL-alpha-Tocopherol and Tocopherol have been mentioned in the context of this disorder. Affiliated tissues include liver and breast, and related phenotypes are steatorrhea and acanthocytosis