BIOC 3110 Lecture Notes - Lecture 29: Membrane Protein, Acetoacetyl-Coa, Oligosaccharide
3 Nov 2016
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What are the features that are common to or unique to the generation of storage, membrane, or signaling lipids: storage lipid-triacylglycerol. Made from adding 3 fatty acids to glycerol-3-p backbone, hydrophobic. Harvested from adipose tissue, and carried in blood by albumin: membrane lipid- have polar head group attached. Made from adding 2 fatty acid chains to glycerol -3-p, hydrophobic. A hydrophilic portion is added, in order to make bilayer. What are the main classes of membrane lipids: 1. Glycerolphospholipids-glycerol backbone with 2 fas and a phosphate-alcohol. Common head groups: choline, ethanolamine, glycerol, serine, and inositol (hydroxyl group, polar head) 2 fas attached to sphingosine backbone (has serine reside- Fa always has 1 palmatate + 1 other linked to nitrogen. Contain carbohydrates (called cerebroside)-positioned on outer membrane, since carbohydrates serve as receptors (note: this is what identifies blood type, and helps viral/bacterial binding) Oligosaccharide containing sialic acid to terminal glucose (called ganglioside: 3.
