Q8N3Y1: F-box/WD repeat-containing protein 8 (FBXW8)

F-box/WD repeat-containing protein 8 (FBXW8) is a 598-residue protein from Homo sapiens. This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: Q8N3Y1.

Gene
FBXW8
Organism
Homo sapiens
Length
598 residues
Mean pLDDT
76.8
Model
AF-Q8N3Y1-F1 v6
Model created
1 Aug 2025
PDB structures
1

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Model confidence (pLDDT)

The mean pLDDT of this model is 76.8 (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 accurate49%
70 to 90Confident: backbone generally right22%
50 to 70Low: treat with caution10%
Below 50Very low: often disordered regions19%

What pLDDT means and how to read it

Function

Substrate-recognition component of the Cul7-RING(FBXW8) ubiquitin ligase complex, which mediates the ubiquitination and subsequent proteasomal degradation of target proteins (PubMed:17205132, PubMed:18498745, PubMed:21572988, PubMed:24362026, PubMed:35982156). The Cul7-RING(FBXW8) complex mediates ubiquitination and consequent degradation of GORASP1, acting as a component of the ubiquitin ligase pathway that regulates Golgi morphogenesis and dendrite patterning in brain (PubMed:21572988). Mediates ubiquitination and degradation of IRS1 in a mTOR-dependent manner: the Cul7-RING(FBXW8) complex recognizes and binds IRS1 previously phosphorylated by S6 kinase (RPS6KB1 or RPS6KB2)…

Subunit structure

Component of the Cul7-RING(FBXW8) complex consisting of CUL7, RBX1, SKP1 and FBXW8; within the complex interacts with CUL7 and SKP1 (PubMed:12904573, PubMed:17205132, PubMed:17332328, PubMed:21572988, PubMed:24362026, PubMed:35982156). Interacts with GLMN isoform 1 (PubMed:12904573). Interacts with OBSL1, CUL1, CUL2, CCT6B, PFDN5, CCT2, CCT3, CCT6A, CCT7, VBP1, CCDC8, ARF1, TRIP13, PDCD5 and…

Subcellular location

Cytoplasm, perinuclear region, Golgi apparatus, Cytoplasm

Experimental structures in the PDB

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

PDB IDMethodResolutionChains and residues
7Z8BEM2.8 ÅF=1-598

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