Peroxisome biogenesis disorder 4B (DOID:0081433)
Alliance: disease page
Alt IDs: OMIM:614863
Definition: A peroxisomal biogenesis disorder that is characterized by the overlapping phenotypes of neonatal adrenoleukodystrophy and infantile Refsum disease and that has_material_basis_in homozygous or compound heterozygous mutation in the PEX6 gene on chromosome 6p21.1, or overexpression of a heterozygous mutation in PEX6 due to allelic expression imbalance resulting from a polymorphism on the mutant allele in the PEX6 3-prime UTR.