the intracellular site of synthesis of two peroxisomal enzymes of rat liver , uricase ( urate : oxygen oxidoreductase , ec 1.7.3.3 ) and catalase ( hydrogen peroxide : hydrogen peroxide oxidoreductase , ec 1.11.1.6 ) , has been localized on free ribosomes and not membrane-bound ribosomes .
C0041931
uricase
C0030016
oxidoreductase