P50991: T-complex protein 1 subunit delta (CCT4)

T-complex protein 1 subunit delta (CCT4) is a 539-residue protein from Homo sapiens. This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: P50991.

Gene
CCT4
Organism
Homo sapiens
Length
539 residues
Mean pLDDT
89.7
Model
AF-P50991-F1 v6
Model created
1 Aug 2025
PDB structures
65

Explore in 3D Color by confidence AlphaFold DB UniProt

Model confidence (pLDDT)

The mean pLDDT of this model is 89.7 (confident overall). pLDDT is AlphaFold's per-residue confidence score from 0 to 100. In MolViewer, choose the B-factor color scheme to color the model by pLDDT, because AlphaFold stores it in the B-factor column.

pLDDT bandMeaningShare of residues
Above 90Very high: backbone and side chains are usually accurate76%
70 to 90Confident: backbone generally right18%
50 to 70Low: treat with caution1%
Below 50Very low: often disordered regions5%

What pLDDT means and how to read it

Function

Component of the chaperonin-containing T-complex (TRiC), a molecular chaperone complex that assists the folding of actin, tubulin and other proteins upon ATP hydrolysis (PubMed:25467444, PubMed:36493755, PubMed:35449234, PubMed:37193829). The TRiC complex mediates the folding of WRAP53/TCAB1, thereby regulating telomere maintenance (PubMed:25467444). As part of the TRiC complex may play a role in the assembly of BBSome, a complex involved in ciliogenesis regulating transports vesicles to the cilia (PubMed:20080638)

Subunit structure

Component of the chaperonin-containing T-complex (TRiC), a hexadecamer composed of two identical back-to-back stacked rings enclosing a protein folding chamber (PubMed:20080638, PubMed:25467444, PubMed:36493755, PubMed:35449234, PubMed:37193829). Each ring is made up of eight different subunits: TCP1/CCT1, CCT2, CCT3, CCT4, CCT5, CCT6A/CCT6, CCT7, CCT8 (PubMed:36493755, PubMed:35449234,…

Subcellular location

Cytoplasm, Melanosome, Cytoplasm, cytoskeleton, microtubule organizing center, centrosome, Cytoplasm, cytoskeleton, cilium basal body

Experimental structures in the PDB

Compare the prediction with experimentally determined structures of the same protein:

PDB IDMethodResolutionChains and residues
7NVLEM2.5 ÅD/d=1-539
8SH9EM2.7 ÅD/d=19-538
8SHEEM2.8 ÅD/d=19-538
8SHGEM2.8 ÅD/d=19-538
8SHNEM2.8 ÅD/d=19-538
7TTTEM2.9 ÅF=1-539
8SG9EM2.9 ÅD/d=19-538
8SGCEM2.9 ÅD/d=19-538
8SGLEM2.9 ÅD/d=19-538
8SHDEM2.9 ÅD/d=19-538
8SHQEM2.9 ÅD/d=19-538
9NOQEM2.9 ÅD/d=1-539
9NRHEM2.9 ÅD/d=1-539
7NVNEM3.0 ÅD/d=1-539
7TRGEM3.0 ÅF=1-539
8SG8EM3.0 ÅD/d=19-538
8SHAEM3.0 ÅD/d=19-538
8SHFEM3.0 ÅD/d=19-538
8SHLEM3.0 ÅD/d=19-538
8SHOEM3.0 ÅD/d=19-538

Showing 20 of 65 experimental structures (best resolution first).

More AlphaFold highlights

About this viewer

MolViewer loads the AlphaFold model straight from AlphaFold DB into your browser. Show it as a cartoon, color by pLDDT, measure distances and angles, and load a PDB structure next to it to compare.