Lipid-peptide interactions between fragments of the transit peptide of ribulose-1,5-bisphosphate carboxylase/oxygenase and chloroplast membrane lipids |
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| Authors: | R van 't Hof R A Demel K Keegstra B de Kruijff |
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| Affiliation: | Centre for Biomembranes and Lipid Enzymology, State University of Utrecht, The Netherlands. |
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| Abstract: | The interactions of fragments of the transit peptide of ribulose-1,5-bisphosphate carboxylase/oxygenase with lipid monolayers was studied in order to investigate the possible involvement of the membrane lipids in the protein import process. The fragments are surface active and have a differential ability to insert in lipid monolayers. The fragments have a preference for the chloroplast galacto- and sulpholipids and phosphatidylglycerol and interact with envelope membrane lipid extracts. These results suggest that probably transit peptide-lipid interactions are involved in the chloroplast protein import process. |
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