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Arrhenius plot characteristics of membrane-bound 3-hydroxy-3-methylglutaryl coenzyme a reductase from the latex of hevea brasiliensis


Citation

Sipat, Abdullah B. (1982) Arrhenius plot characteristics of membrane-bound 3-hydroxy-3-methylglutaryl coenzyme a reductase from the latex of hevea brasiliensis. Biochimica et Biophysica Acta (BBA) - Protein Structure and Molecular Enzymology, 705 (2). pp. 284-287. ISSN 0167-4838

Abstract

The enzyme 3-hydroxy-3-methylglutaryl-CoA reductase (mevalonate:NADP+ oxidoreductase (CoA-acylating), EC 1.1.1.34) from the latex of regularly tapped trees of Hevea brasiliensis is membrane-bound. The effect of temperature on this enzyme was studied over the range of 8-40°C and the Arrhenius plot of activity showed a discontinuity at 14°C with an activation energy of 55.6 kJ/mol (13.3 kcal/mol) and 2.5 kJ/mol (0.6 kcal/mol) respectively above and below this temperature break. The result obtained is consistent with the known lack of fluidity of the membranes of the particles which the enzyme is associated with in the latex.


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Additional Metadata

Item Type: Article
Divisions: Faculty of Science and Environmental Studies
DOI Number: https://doi.org/10.1016/0167-4838(82)90190-X
Publisher: Elsevier BV
Keywords: (Hexea brasiliensis); Arrhenius plot; Hydroxymethylglutaryl-CoA reductase; Latex
Depositing User: Ms. Nuraida Ibrahim
Date Deposited: 21 Feb 2025 02:50
Last Modified: 21 Feb 2025 02:50
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.1016/0167-4838(82)90190-X
URI: http://psasir.upm.edu.my/id/eprint/115121
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