UPM Institutional Repository

Chemical modification of lipases


Leow, Adam Thean Chor and Raja Abdul Rahman, Raja Noor Zaliha and Cheong, Kok Whye and Tejo, Bimo Ario and Salleh, Abu Bakar and Basri, Mahiran (2013) Chemical modification of lipases. In: Molecular and Structural Biology of New Lipases and Proteases. Nova Science Publishers, New York, pp. 107-132. ISBN 9781626186453


Since the industrial uses of lipase is expanding, research and development on this enzyme is strategically focusing on modifying its chemical, physical and biological properties. Surface residuse of enzymes are reactive chemically and thus a potential target for chemical modification. We have carried out chemical modification via reductive alkylation on lysine residuse of T1 and Candida rugosa lipase (CRL)using propionaldehyde. Through molecular dynamics (MD) and circular dichroism (CD), intrinsic and extrinsic fluorescence studies, the altered properties of T1 lipase were examined. Reductive alkylation using propionaldehyde caused the unfolding of enzymes as observed in chemically modified Candida rugosa and T1 lipase. As the effect of reductive alkylation is not localized at the modified site, the formation of molten globule could be observed in modified T1 lipase.

Download File

PDF (Abstract)

Download (162kB) | Preview

Additional Metadata

Item Type: Book Section
Call Number: QP609 L5M718
Divisions: Faculty of Biotechnology and Biomolecular Sciences
Publisher: Nova Science Publishers
Keywords: Lipases; Enzymes
Depositing User: Umikalthom Abdullah
Date Deposited: 17 Aug 2015 08:40
Last Modified: 27 Sep 2016 02:59
URI: http://psasir.upm.edu.my/id/eprint/31047
Statistic Details: View Download Statistic

Actions (login required)

View Item View Item