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fbxo38

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wiki page Created: 2026-04-02T07:19:26 By: crosslink-migration Quality: 50% ✓ SciDEX ID: wiki-genes-fbxo38
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fbxo38

Overview

The FBXO38 gene (F-box Protein 38) encodes an F-box protein that functions as a critical substrate recognition component of the SCF (Skp1-Cul1-F-box) ubiquitin ligase complex. FBXO38 is one of approximately 69 F-box proteins in humans that confer substrate specificity to the SKP1-CUL1-F-box protein (SCF) E3 ubiquitin ligase complex. Through its substrate targeting function, FBXO38 regulates the ubiquitination and subsequent proteasomal degradation of specific target proteins, thereby controlling key cellular processes including transcription factor turnover, signal transduction, and protein quality control.[@x2018]

Importantly, FBXO38 has been identified as a causative gene for amyotrophic lateral sclerosis (ALS), where loss-of-function mutations lead to dysregulated NF-κB signaling and motor neuron degeneration.[@f2019] Additionally, FBXO38 has been implicated in spinal muscular atrophy (SMA) pathogenesis through its role in SMN protein regulation.[@n2024] The selective vulnerability of motor neurons to FBXO38 dysfunction highlights the critical importance of protein homeostasis and inflammatory signaling regulation in these cells.

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FBXO38
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kg_node_idFBXO38
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📊 Evidence Profile
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