Peroxisome Biogenesis Disorder 3a, also known as pbd3a, is related to peroxisome biogenesis disorder 3b and chudley-mccullough syndrome, and has symptoms including seizures An important gene associated with Peroxisome Biogenesis Disorder 3a is PEX12 (Peroxisomal Biogenesis Factor 12). Affiliated tissues include liver and eye, and related phenotypes are seizure and hypotonia