proteosome

proteosome
A cluster of genes that encode components of the cell cytosolic proteolytic complex, a set of proteins thought to be involved in cellular processing and transport of peptides in the formation of the major histocompatibility complex class I molecules. [proteo- + G. soma, body]

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pro·te·o·some (proґte-ə-sōm) proteasome.

Medical dictionary. 2011.

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