Peroxisome Biogenesis Disorder 2b, also known as pbd2b, is related to peroxisome biogenesis disorder 1a and rhizomelic chondrodysplasia punctata, type 1. An important gene associated with Peroxisome Biogenesis Disorder 2b is PEX5 (Peroxisomal Biogenesis Factor 5), and among its related pathways/superpathways is Peroxisomal lipid metabolism. Affiliated tissues include liver and brain, and related phenotypes are intellectual disability and seizure