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. 1976 Nov 15;160(2):237-41.
doi: 10.1042/bj1600237.

Subcellular localization of oestrogen-induced uterine peroxidase

C R Lyttle, P H Jellinck

Subcellular localization of oestrogen-induced uterine peroxidase

C R Lyttle et al. Biochem J. .

Abstract

The distribution of oestrogen-induced peroxidase in the resuspended 8000g pellet of rat uterine homogenates was examined by centrifugation in a sucrose density gradient. Within 10h of treatment with oestradiol, peroxidase activity was found in a region devoid of catalase or urate oxidase (peroxisomal markers) which did not overlap the fractions containing succinate dehydrogenase (mitochondrial marker) or acid phosphatase (lysosomal marker). The induced uterine enzyme was localized in reticular membrane-bound vesicles with isopycnic density of 1.28g/ml from which it could be released by treatment with detergent.

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