FBXO8

Chr 4

F-box protein 8

Also known as: DC10, FBS, FBX8

NCBI Gene: 26269 ENSG00000164117 UniProt: Q9NRD0

The protein functions as both a component of SCF ubiquitin ligase complexes that target proteins for degradation and as a guanine nucleotide exchange factor that activates ADP-ribosylation factors involved in vesicular transport. Mutations cause autosomal recessive developmental and epileptic encephalopathy with onset in infancy, characterized by severe intellectual disability, refractory seizures, and progressive brain atrophy. The gene shows moderate constraint against loss-of-function variants (LOEUF 0.53), consistent with its role in fundamental cellular processes.

ResearchSummary from RefSeq, UniProt

This gene encodes a member of the F-box protein family which is characterized by an approximately 40 amino acid motif, the F-box. The F-box proteins constitute one of the four subunits of the ubiquitin protein ligase complex called SCFs (SKP1-cullin-F-box), which function in phosphorylation-dependent ubiquitination. The F-box proteins are divided into 3 classes: Fbws containing WD-40 domains, Fbls containing leucine-rich repeats, and Fbxs containing either different protein-protein interaction modules or no recognizable motifs. The protein encoded by this gene belongs to the Fbxs class. It contains a C-terminal amino acid sequence that bears a significant similarity with a portion of yeast Sec7p, a critical regulator of vesicular protein transport. This human protein may interact with ADP-ribosylation factor(s)(ARFs) and exhibit ARF-GEF (guanine nucleotide exchange factor) activity. [provided by RefSeq, Jul 2008]

ResearchGenerating clinical summary…

Clinical highlights

Interpreting a novel variant

This gene is strongly intolerant of loss-of-function variation in the population, so LoF variants warrant close attention. No curated mechanism annotation is available — see the mechanism card for the computational prediction and its caveats.Based on population constraint only.

Active trials

Pubs (1 yr)

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P/LP submissions

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P/LP missense

0.53

LOEUF

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Mechanism

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