Abstract
Reverse micelles system is suggested as a direct tool to study the influence of membrane matrix composition on the activity and structure of membrane-associated enzymes with the use of acid phosphatase (AP) as an example. In reverse micelles the functioning of the monomeric and dimeric forms of AP could be separately observed by variation of the size of the micelles. We found that including the lipids into the micellar system can dramatically affect the enzyme functioning even at low lipid content (2% w/w), and this effect depends on the lipid nature. Structural studies using CD spectroscopy and DLS methods have shown that the influence of lipid composition on the enzyme properties might be caused by the interaction of lipids with the enzyme as well as by the influence of lipids on structure and properties of the micellar matrix.
Original language | English |
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Pages (from-to) | 490-497 |
Number of pages | 8 |
Journal | Journal of Colloid and Interface Science |
Volume | 353 |
Issue number | 2 |
DOIs | |
State | Published - 15 Jan 2011 |
Bibliographical note
Funding Information:This work was partially supported by Israeli Government.
Keywords
- Acid phosphatase
- Circular dichroism
- DLS
- Membrane lipids
- Reverse micelles