Read about Proteasomes and protein recycling

Protein breakdown is just as essential to the cell as protein synthesis.Four uses of the proteasomeThere are two major structures in cells which break down and recycle damaged or unneeded proteins.They are lysosomes and proteasomesLysosomes deal primarily with extracellular proteins, proteins that come from outside the cell.e.g. proteins, that are taken into the cell by endocytosis.

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