The role of the lipid matrix in the biosynthesis of dolichyl-linked oligosaccharides |
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Authors: | John S Schutzbach |
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Affiliation: | (1) The University of Alabama at Birmingham, Departments of Microbiology and of Biochemistry and Molecular Genetics, University Station Birmingham, AL 35294-0019, USA |
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Abstract: | The enzymes in the dolichol pathway are membrane-proteins that utilize a combination of hydrophilic and extremely hydrophobic substrates. The enzymes in this pathway that have been purified and characterized to any extent have either been shown to be stabilized by mixed phospholipid/detergent micelles, or else require a lipid matrix for catalytic activity. Further understanding of the mechanisms of these essential enzymes may require developing methods for the reconstitution of the glycosyltransferases and their hydrophobic substrates in appropriate lipid matrices. Abbreviations: CHO, Chinese hamster ovary; Dol, dolichol; DAG, diacylglycerol; DOPC, dioleolylphosphatidylcholine; DOPE, dioleolyphosphatidylethanolamine; ER, endoplasmic reticulum; PC, phosphatidylcholine; PE, phosphatidylethanolamine; PG, phosphatidylglycerol; PI, phosphatidylinositol This revised version was published online in November 2006 with corrections to the Cover Date. |
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Keywords: | dolichol glycosyltransferases hexagonal phase membranes phospholipids |
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