Proteins that bind to and disrupt cell membranes may target specific phospholipids. Here we describe a protocol to identify the lipid targets of proteins and biomolecules. First, we describe a screen to identify lipids in membranes that are specifically bound by the biomolecule of interest. Second, we describe a method for determining if the presence of these lipids within membranes is necessary for membrane disruption. The methods described here were used to determine that the malaria vaccine candidate CelTOS disrupts cell membranes by specifically targeting phosphatidic acid (Jimah ., 2016). This protocol has a companion protocol: 'Liposome disruption assay to examine lytic properties of biomolecules' which can be applied to examine the ability of the biomolecule to disrupt membranes composed of the lipid target identified by following this protocol (Jimah , 2017).
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5602571 | PMC |
| http://dx.doi.org/10.21769/BioProtoc.2427 | DOI Listing |
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