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Chaperonin containing TCP1 subunit 8 like 2 (CCT8L2)

Target
CCT8L2
Molecular classification
Other (Molecular chaperone; component of the chaperonin-containing TCP1 complex, also called CCT)
01

Overview

Chaperonin containing TCP1 subunit 8 like 2 (CCT8L2) is a protein-coding gene that produces a subunit of the chaperonin-containing TCP1 complex (CCT), a large cytosolic molecular chaperone complex essential for ATP-dependent protein folding. The CCT complex consists of eight different subunit species, each with substrate-specific roles in folding in vivo[7]. CCT8L2 is closely related to the “theta” subunit (CCT8) and is predicted to assist folding of actin, tubulin, and potentially other cytosolic proteins. It is primarily involved in general proteostasis and cellular function via protein folding, and may contribute to spermatogenesis as part of CCT complex function[2][3][4][5][7][6]. No therapeutic drugs are known to act on CCT8L2, and disease associations derive mainly from the general significance of the chaperonin system, rather than this specific subunit. CCT8L2 is not currently considered a direct therapeutic target.

Other names
Chaperonin containing TCP1 subunit 8 like 2CCT8L2CESK1Chaperonin containing T-complex polypeptide 1 subunit 8-like 2Chaperonin containing TCP1, subunit 8 (theta)-like 2T-complex protein 1 subunit theta-like 2Putative T-complex protein 1 subunit theta-like 2
02

Mechanism of action

None currently applicable, as no drugs are known to target CCT8L2.

03

Biological functions

Protein folding (facilitating correct folding of newly synthesized polypeptides, including actin and tubulin)Maintenance of cellular proteostasis (by assisting folding of many cytosolic proteins, potentially up to 15% of the proteome via the CCT complex)Spermatogenesis (contributing to sperm protein folding and morphogenesis as part of CCT complex, though specific subunit knockout characterized for CCT6B)
04

Disease associations

Other (Not directly implicated or recognized as a driver in any major human disease, though CCT complex subunits broadly associated with proteostasis; indirect links may exist with neurodevelopmental and spermatogenic processes based on complex as a whole)Potential involvement in Down syndrome fetal cortex (expression patterns), schizophrenia risk (SNP in CCT1 gene, not CCT8L2 specifically)
05

Safety considerations

None documented, as CCT8L2 is not a therapeutic targetGeneral challenges with chaperonin system modulation (protein-folding disturbance) may apply to CCT complex overall, but not CCT8L2 specifically.
06

Interacting drugs

None identified
07

Biomarkers

None recognized for patient selection or efficacy monitoring

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