proteasome

(redirected from 26s proteosome)
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pro·te·a·some

 (prō′tē-ə-sōm′)
n.
A cellular protein complex consisting of proteolytic enzymes that degrade endogenous proteins, especially those that are damaged, pathogenic, or no longer of use.

[Alteration of earlier prosome (influenced by protease) : pro(grammed), from the earlier belief that proteasomes played a role in regulating messenger RNA translation + -some.]