Peroxisome Biogenesis Disorder 5a, also known as pbd5a, is related to peroxisome biogenesis disorder 5b and breast cancer, and has symptoms including icterus and seizures. An important gene associated with Peroxisome Biogenesis Disorder 5a is PEX2 (Peroxisomal Biogenesis Factor 2). Affiliated tissues include liver and eye, and related phenotypes are high forehead and hypotonia