Alpha-tocopheryl acetate hydrolase in chicken liver. Characterisation and properties.
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Date
1979-06
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Abstract
An enzyme catalysing the hydrolysis of a-tocopheryl acetate was
characterised in chicken liver. The enzyme was localised in the microsomes, had
an optimum pH 8·6 and a Km value of 0·5 mM. The enzyme did not hydrolyse
retinyl acetate, cholesteryl acetate and ethyl acetate, thus indicating a high degree
of specificity. a-Tocopheryl acetate hydrolase required bile salts as a specific cofactor.
The results suggested a role for this enzyme in the absorption of vitamin E.
Description
Keywords
Alpha-tocopheryl acetate hydrolase, chicken liver, bile salts
Citation
Kartha V N R, Bai N Jayanthi, George Thomas, Krishnamurthy S. Alpha-tocopheryl acetate hydrolase in chicken liver. Characterisation and properties. Journal of Biosciences. 1979 Jun; 1(2): 159-168.