γ-glutamyl transpeptidase and related enzyme activities in the reproductive system of the male rat
Phospholipid Transfer Proteins
The γ-glutamyl transpeptidase activity of the epididymis is much higher than that of the several other organs of the reproductive system of the male rat. The epididymal caput has much more activity than the epididymal cauda. Relatively low activity was found in spermatozoa. The enzyme is present in the epididymal fluid in a particulate form suggesting that it originates from membranes of epididymal epithelial cells. The epididymal caput exhibits high γ-glutamylcysteine synthetase activity indicating an active γ-glutamyl ycle in this tissue, which plays an important role in transport phenomena. © 1977.
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