Equivalent mutations in the eight subunits of the chaperonin CCT produce dramatically different cellular and gene expression phenotypes.

Abstract excerpt

The eukaryotic cytoplasmic chaperonin-containing TCP-1 (CCT) is a complex formed by two back-to-back stacked hetero-octameric rings that assists the folding of actins, tubulins, and other proteins in an ATP-dependent manner. Here, we tested the significance of the hetero-oligomeric nature of CCT in its function by introducing, in each of the eight subunits in turn, an identical mutation at a position that is...

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