The primary constituents of blue crab yolk are lipovitellin and lipid droplets.
Also, in Emerita, lipids from lipovitellin and droplets are hydrolyzed by lipases (Subramoniam 1991).
Lipovitellin from the crustacean, Artemia salina: biochemical analysis of lipovitellin complex from the yolk granules.
Effect of reproductive toxicants on lipovitellin in female blue crabs, Callinectes sapidus.
Embryo lipoproteins and yolk lipovitellin consumption during embryogenesis in Macrobrachium borellii (Crustacea: Palaemonidae).
Purification of vitellin from grass shrimp Palaemonetes pugio generation of monoclonal antibodies, and validation for the detection of lipovitellin in crustacean.
N-Terminal domain of apolipoprotein B has structural homology to lipovitellin
and microsomal triglyceride transfer protein: a "lipid pocket" model for self-assembly of apoB-containing lipoprotein particles.
Boisynthesis of lipovitellin by the crustacean ovary: II.
The incorporation of labeled amino acid into the purified lipovitellin of the crab Pachygrapsus crassipes.
It seems unlikely that LpI is formed directly from lipovitellin (LpII), since the two lipoproteins are biochemically quite dissimilar.
We speculate that during embryogenesis of the blue crab, proteases and lipases in vitellophages hydrolyze lipovitellin to amino acids and fatty acids, which the cuboidal cells then use to assemble LpI.
There are also important differences in the major yolk protein, vitellin, of insects compared with the major yolk protein, lipovitellin (LpII), of crabs.