Fbxo4 F-box protein 4 [Mus musculus (house mouse)] - Gene

Summary

Official Symbol: Fbxo4provided by MGI
Official Full Name: F-box protein 4provided by MGI
Primary source: MGI:MGI:2146220
See related: Ensembl:ENSMUSG00000022184 AllianceGenome:MGI:2146220
Gene type: protein coding
RefSeq status: VALIDATED
Organism: Mus musculus
Lineage: Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Glires; Rodentia; Myomorpha; Muroidea; Muridae; Murinae; Mus; Mus
Also known as: Fbx4; 1700096C12Rik
Summary: Enables ubiquitin protein ligase activity and ubiquitin-like ligase-substrate adaptor activity. Acts upstream of or within several processes, including common myeloid progenitor cell proliferation; protein destabilization; and regulation of DNA damage checkpoint. Part of SCF ubiquitin ligase complex. Is expressed in several structures, including craniocervical region bone; esophagus; lung; pituitary gland; and sensory organ. Orthologous to human FBXO4 (F-box protein 4). [provided by Alliance of Genome Resources, Dec 2024]
Expression: Ubiquitous expression in genital fat pad adult (RPKM 4.2), bladder adult (RPKM 3.8) and 28 other tissues See more
Orthologs: human all
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Genomic context

Location:: 15 A1; 15 1.84 cM

Exon count:: 7

Annotation release	Status	Assembly	Chr	Location
RS_2024_02	current	GRCm39 (GCF_000001635.27)	15	NC_000081.7 (3993046..4009055, complement)
108.20200622	previous assembly	GRCm38.p6 (GCF_000001635.26)	15	NC_000081.6 (3963564..3979573, complement)

Chromosome 15 - NC_000081.7 Genomic Context describing neighboring genes

Genomic regions, transcripts, and products

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Genomic Sequence:

Go to nucleotide: Graphics FASTA GenBank

Bibliography

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GeneRIFs: Gene References Into Functions

What's a GeneRIF?

These findings suggest a role of Hsp20 in mediating adipocyte function by linking beta-adrenergic signaling to PPARgamma activity.
Title: An Hsp20-FBXO4 Axis Regulates Adipocyte Function through Modulating PPARγ Ubiquitination.
Collectively, our data support a role for FBXO4 as a suppressor of esophageal tumorigenesis
Title: FBXO4 loss facilitates carcinogen induced papilloma development in mice.
This study demonstrates that Fbxo4 deficiency induces Braf-driven melanoma and that this phenotype depends on cyclin D1 accumulation in mice, underscoring the importance of this ubiquitin ligase in tumor suppression.
Title: The FBXO4 tumor suppressor functions as a barrier to BRAFV600E-dependent metastatic melanoma.
Fbx4 expression is essential for cell homeostasis in somatic cells. Fbx4 ablation predisposes mice to multiple tumor phenotypes, with concomitant cyclin D1 deregulation and nuclear accumulation
Title: The Fbx4 tumor suppressor regulates cyclin D1 accumulation and prevents neoplastic transformation.
Lysine 269 is essential for cyclin D1 ubiquitylation by the SCF(Fbx4/alphaB-crystallin) ligase.
Title: Lysine 269 is essential for cyclin D1 ubiquitylation by the SCF(Fbx4/alphaB-crystallin) ligase and subsequent proteasome-dependent degradation.
SCF(FBX4-alphaB crystallin) is an E3 ubiquitin ligase that promotes ubiquitin-dependent degradation of Thr286-phosphorylated cyclin D1.
Title: Phosphorylation-dependent ubiquitination of cyclin D1 by the SCF(FBX4-alphaB crystallin) complex.

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Variation

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Alleles

Alleles of this type are documented at Mouse Genome Informatics (MGI)

Endonuclease-mediated (1)
Targeted (2) 1 citation

Interactions

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Products	Interactant	Other Gene	Complex	Source	Pubs	Description

General gene information

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Gene Ontology Provided by MGI

Function	Evidence Code	Pubs
enables protein binding	IPI Inferred from Physical Interaction more info	PubMed
enables protein homodimerization activity	IEA Inferred from Electronic Annotation more info
enables protein homodimerization activity	ISO Inferred from Sequence Orthology more info
enables ubiquitin protein ligase activity	IDA Inferred from Direct Assay more info	PubMed
enables ubiquitin-like ligase-substrate adaptor activity	IDA Inferred from Direct Assay more info	PubMed
enables ubiquitin-like ligase-substrate adaptor activity	ISO Inferred from Sequence Orthology more info
enables ubiquitin-protein transferase activity	ISO Inferred from Sequence Orthology more info

Process	Evidence Code	Pubs
involved_in SCF-dependent proteasomal ubiquitin-dependent protein catabolic process	IBA Inferred from Biological aspect of Ancestor more info
involved_in SCF-dependent proteasomal ubiquitin-dependent protein catabolic process	ISO Inferred from Sequence Orthology more info
involved_in SCF-dependent proteasomal ubiquitin-dependent protein catabolic process	ISS Inferred from Sequence or Structural Similarity more info
acts_upstream_of_or_within cellular homeostasis	IMP Inferred from Mutant Phenotype more info	PubMed
acts_upstream_of_or_within cellular response to ionizing radiation	IDA Inferred from Direct Assay more info	PubMed
acts_upstream_of_or_within cellular senescence	IMP Inferred from Mutant Phenotype more info	PubMed
acts_upstream_of_or_within common myeloid progenitor cell proliferation	IMP Inferred from Mutant Phenotype more info	PubMed
acts_upstream_of_or_within negative regulation of fibroblast proliferation	IMP Inferred from Mutant Phenotype more info	PubMed
acts_upstream_of_or_within negative regulation of protein localization to nucleus	IMP Inferred from Mutant Phenotype more info	PubMed
acts_upstream_of_or_within positive regulation of protein polyubiquitination	IMP Inferred from Mutant Phenotype more info	PubMed
involved_in positive regulation of protein ubiquitination	ISO Inferred from Sequence Orthology more info
involved_in positive regulation of protein ubiquitination	ISS Inferred from Sequence or Structural Similarity more info
involved_in positive regulation of telomere maintenance via telomerase	IEA Inferred from Electronic Annotation more info
involved_in positive regulation of telomere maintenance via telomerase	ISO Inferred from Sequence Orthology more info
acts_upstream_of_or_within post-transcriptional regulation of gene expression	IMP Inferred from Mutant Phenotype more info	PubMed
acts_upstream_of_or_within protein destabilization	IMP Inferred from Mutant Phenotype more info	PubMed
involved_in protein polyubiquitination	IBA Inferred from Biological aspect of Ancestor more info
involved_in protein polyubiquitination	ISO Inferred from Sequence Orthology more info
involved_in protein polyubiquitination	ISS Inferred from Sequence or Structural Similarity more info
involved_in protein ubiquitination	ISO Inferred from Sequence Orthology more info
acts_upstream_of_or_within regulation of DNA damage checkpoint	IMP Inferred from Mutant Phenotype more info	PubMed
involved_in regulation of protein stability	ISO Inferred from Sequence Orthology more info
involved_in telomere maintenance	ISO Inferred from Sequence Orthology more info
involved_in telomere maintenance	ISS Inferred from Sequence or Structural Similarity more info
involved_in ubiquitin-dependent protein catabolic process	ISO Inferred from Sequence Orthology more info
involved_in ubiquitin-dependent protein catabolic process	ISS Inferred from Sequence or Structural Similarity more info

Component	Evidence Code	Pubs
part_of SCF ubiquitin ligase complex	IBA Inferred from Biological aspect of Ancestor more info
part_of SCF ubiquitin ligase complex	IDA Inferred from Direct Assay more info	PubMed
part_of SCF ubiquitin ligase complex	ISO Inferred from Sequence Orthology more info
part_of SCF ubiquitin ligase complex	ISS Inferred from Sequence or Structural Similarity more info
located_in cytoplasm	IEA Inferred from Electronic Annotation more info
located_in cytoplasm	ISO Inferred from Sequence Orthology more info
part_of ubiquitin ligase complex	ISO Inferred from Sequence Orthology more info

General protein information

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Preferred Names: F-box only protein 4

NCBI Reference Sequences (RefSeq)

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RefSeqs maintained independently of Annotated Genomes

These reference sequences exist independently of genome builds. Explain

These reference sequences are curated independently of the genome annotation cycle, so their versions may not match the RefSeq versions in the current genome build. Identify version mismatches by comparing the version of the RefSeq in this section to the one reported in Genomic regions, transcripts, and products above.