Alpha-tocopheryl acetate hydrolase in chicken liver. Characterisation and properties |
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Authors: | V. N. R. Kartha N. Jayanthi Bai Thomas George S. Krishnamurthy |
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Affiliation: | (1) Department of Biochemistry, T.D. Medical College, 688 005 Alleppey |
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Abstract: | An enzyme catalysing the hydrolysis ofa-tocopheryl acetate was characterised in chicken liver. The enzyme was localised in the microsomes, had an optimum pH 8.6 and aK m 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 co-factor. The results suggested a role for this enzyme in the absorption of vitamin E. |
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Keywords: | Alpha-tocopheryl acetate hydrolase chicken liver bile salts |
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