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Dep. of Chemistry & Biochemistry Prof. Indig. Chemistry 501 Handout 10 Lipids Chapter 10. Lehninger. Principles of Biochemistry. by Nelson and Cox, 5 th Edition; W.H. Freeman and Company. Two conventions for naming fatty acids. Fatty Acids. Stearic acid. Oleic acid.
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Dep. of Chemistry & Biochemistry Prof. Indig Chemistry 501 Handout 10LipidsChapter 10 Lehninger. Principles of Biochemistry. by Nelson and Cox, 5th Edition; W.H. Freeman and Company
Fatty Acids Stearic acid Oleic acid
The packing of fatty acids into stable aggregates
Triacylglycerols provide stored energy and insulation Fatty stores in cells Guinea pig adipocytes Cotyledon cell from a seed of Arabidopsis
Many foods contain triacylglycerols Fatty acid composition of three food fats
Waxes serve as energy stores and water repellents Triacontanoylpalmitate The major component of beeswax
Glycerophospholipids The backbone of phospholipids
Galactolipids and sulfolipids Three glycolipids of chloroplast membranes
Sphingolipids at cell surfaces are sites of biological recognition Glycosphingolipids as determinants of blood groups
Phospholipids and sphingolipids are degraded in lysosomes The specificities of phospholipases
Inherited human diseases resulting from abnormal accumulations of membrane lipids Abnormal ganglioside deposits in lysosomes (brain cell) Tay-Sachs
Sterols have four fused carbon rings Cholesterol
Vitamin D3 production and metabolism a hormone that regulates Ca+2 uptake in the intestines and calcium levels in kidney and bones Rickets
Gene SLC24A5 Two variants Difference: just one amino acid
Vitamin A1 and its precursor and derivatives Isoprene structural unit
fibrinogen fibrin Some other biologically active isoprenoid compounds involved in the formation of active prothrombin
inhibits the formation of active prothrombin Wisconsin Alumni Research Foundation +arin
Determination of the structure of a fatty acid by mass spectrometry