Oleosins are the proteinaceous components of plants' lipid storage bodies called oil bodies . Oil bodies are small droplets (0.2 to 1.5 µm in diameter) containing mostly triacylglycerol that are surrounded by a phospholipid/oleosin annulus. Oleosins may have a structural role in stabilizing the lipid body during desiccation of the seed. They may also provide recognition signals for specific lipase anchorage in lipolysis during seedling growth.
Family-defining Pfam domains (at least one of these domains is present in each family member):
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