description | Protein which, if defective, causes peroxisome biogenesis disorder, a group of peroxisomal disorders arising from a failure of protein import into the peroxisomal membrane or matrix. The PBD group is comprised of four disorders: Zellweger syndrome (ZWS), neonatal adrenoleukodystrophy (NALD), infantile Refsum disease (IRD), and classical rhizomelic chondrodysplasia punctata type 1 (RCDP1). ZWS, NALD and IRD are distinct from RCDP1 and constitute a clinical continuum of overlapping phenotypes known as Zellweger spectrum. The PBD group is genetically heterogeneous with at least 12 distinct genetic groups as concluded from complementation studies |