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Chaperonin containing TCP1, subunit 6B
Cctz-2, CCTzeta-2, TSA303
This gene encodes a molecular chaperone that is a member of the chaperonin containing TCP1 complex (CCT), also known as the TCP1 ring complex (TRiC). This complex consists of two identical stacked rings, each containing eight different proteins. Unfolded polypeptides enter the central cavity of the complex and are folded in an ATP-dependent manner. The complex folds various proteins, including actin and tubulin. Alternate transcriptional splice variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2010] (from
We have cloned seven CCT subunit genes, Cctb, Cctd, Ccte, Cctz-1, Cctz-2 (testis specific), Ccth and Cctq, from mouse genomic DNA libraries, in addition to the Ccta and Cctg genes reported previously, and the entire nucleotide sequences of these DNA clones were determined.
The first of these genes, designated TSA303, encodes a novel protein homologous to TCP20, one of the subunits of the human TRiC chaperonin complex that can bind newly synthesized or unstable folding intermediates of polypeptides and assist substrate proteins in folding, assembly, and transport.