Proteinlagringsvakuoler
Proteinlagring, literally “protein storage,” refers to the processes by which cells, tissues, and organisms store and mobilize proteins for use in growth, repair, and metabolism. In many organisms, specific proteins are stored in granules or vesicles. For example, in plant seeds protein storage vacuoles accumulate large amounts of globulin and albumin that provide nutritional value for seed germination. In animals, skeletal and cardiac muscle contain myofibrillar proteins such as actin and myosin, which can be used for contraction and maintenance. Liver cells store metabolic enzymes and storage proteins like albumin that function in transport and fluid balance.
At the cellular level, storage proteins are often synthesized as precursors and processed within endoplasmic reticulum
In biotechnology, engineered organisms can be used for large‑scale protein production, where engineered strains store recombinant
The study of proteinlagring intersects molecular biology, cell biology, physiology, and bioengineering. It has practical implications