Lipid-protein interactions in biomembranes studied through the phospholipid specificity of D-beta-hydroxybutyrate dehydrogenase.
Since the biological membranes are fundamental units in the living cells, the studies of lipid-protein interactions are crucial for the understanding of their structure, functions and properties. Beside hydrophobic interactions between fatty acids chain of phospholipids and intrinsic membrane proteins, the interactions between charged groups of the protein with the polar heads of phospholipids generally confer the specificity which may be absolute or preferential. This paper reports essential results obtained these last few years with D-beta-hydroxybutyrate dehydrogenase (BDH) from inner mitochondrial membrane, one of the most interesting and best documented examples of a lipid-requiring enzyme. This is a review of the molecular basis--knowledge and strategy of study--of the lipid specificity for membrane protein functions.
D001665:Binding Sites; D055598:Chemical Phenomena; D002621:Chemistry; D003067:Coenzymes / Q000378:metabolism; D004563:Electrochemistry; D004789:Enzyme Activation; D004793:Enzyme Reactivators; D006884:Hydroxybutyrate Dehydrogenase / Q000378:metabolism*; D007158:Immunologic Techniques; D007425:Intracellular Membranes / Q000201:enzymology; D008051:Lipid Bilayers / Q000378:metabolism; D046911:Macromolecular Substances; D008560:Membrane Fluidity; D008563:Membrane Lipids / Q000378:metabolism*; D008565:Membrane Proteins / Q000378:metabolism*; D008928:Mitochondria / Q000201:enzymology; D010447:Peptide Hydrolases / Q000378:metabolism; D010713:Phosphatidylcholines / Q000378:metabolism; D010743:Phospholipids / Q000378:metabolism*; D011487:Protein Conformation; D013379:Substrate Specificity
D003067:Coenzymes; D004793:Enzyme Reactivators; D008051:Lipid Bilayers; D046911:Macromolecular Substances; D008563:Membrane Lipids; D008565:Membrane Proteins; D010713:Phosphatidylcholines; D010743:Phospholipids; D006884:Hydroxybutyrate Dehydrogenase; D010447:Peptide Hydrolases