<prompt> All are disorders due to peroxisomal abnormalities except?Pfeiffer syndromeZellweger syndromeHyperoxaluria type 1Acatalasemia  <response>: Peroxisome is an organelle involved in the metabolism of many molecules including fatty acids, purines and amino acids. It is bounded by a single membrane and contains more than 50 enzymes. Pfeiffer syndrome is due to mutations in the gene encoding fibroblast growth factor receptor 1 FGR1. It is a craniosynostosis syndrome. 