Complex Lipid Metabolism Flashcards
Triacylglycerol
3 carbon-acyl groups with 3 fatty acid groups (one per a carbon)
Phospholipids
2 FA groups, 3 carbons, 1 phosphate group with a polar head group
What is unique about cardiolipin?
Has 2 phosphate groups with 4 FA groups (total, 2 per a P)
Plasmalogens
Synthesized in peroxisomes. Have alkenyl alcohol attached via ether linkage
Sphingomyelin
Sphingosine + acyl-CoA+PC
Sphingosine
Singaling molecule. Only the anime plus a saturated FA
Glycoshingolipid composition
shingosine, FA in amide linkage, 1 or more carb derived structures
2 sources of glycerol-3-phosphate
Liver (glycerol) and adipose tissue (dihydroxyacetone phosphate)
Where is glycerol kinase primarily expressed?
Liver and intestine
TAGS from liver fate
packaged/secreted as VLDL
TAGS from adipose fate
stored in lipid droplets of adipocytes
TAGs from intestine fate
Packaged as chylomircons for circulation
What tissue does not synthesize phsopholipids?
RBCs
From what are all glycerophospholipids derived from?
phosphatidic acid
What type of synthesis is DAG used for?
PC and PE