Seroatlas · Human Serome Atlas

RBFOX3

RNA binding protein fox-1 homolog 3

Also known as: FOX-3, HRNBP3, NeuN, RFOX3_HUMAN

Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene

Protein identityUniProt · HPA

UniProt accession
A6NFN3
Gene
RBFOX3
Ensembl
ENSG00000167281
Chromosome
17
Canonical length
312 aa
Protein class
Predicted intracellular proteins
Subcellular location
Nucleoplasm

OverviewNCBI Gene

This gene encodes a member of the RNA-binding FOX protein family which is involved in the regulation of alternative splicing of pre-mRNA. The protein has an N-terminal proline-rich region, an RNA recognition motif (RRM) domain, and a C-terminal alanine-rich region. This gene produces the neuronal nuclei (NeuN) antigen that has been widely used as a marker for post-mitotic neurons. This gene has its highest expression in the central nervous system and plays a prominent role in neural tissue development and regulation of adult brain function. Mutations in this gene have been associated with numerous neurological disorders. Alternative splicing of this gene results in multiple transcript variants encoding distinct isoforms. [provided by RefSeq, May 2017]

Canonical amino-acid sequenceUniProt

312 residues, UniProt reviewed canonical sequence.

>A6NFN3|RBFOX3
     1  MAQPYPPAQY PPPPQNGIPA EYAPPPPHPT QDYSGQTPVP TEHGMTLYTP AQTHPEQPGS
    61  EASTQPIAGT QTVPQTDEAA QTDSQPLHPS DPTEKQQPKR LHVSNIPFRF RDPDLRQMFG
   121  QFGKILDVEI IFNERGSKGF GFVTFETSSD ADRAREKLNG TIVEGRKIEV NNATARVMTN
   181  KKTGNPYTNG WKLNPVVGAV YGPEFYAVTG FPYPTTGTAV AYRGAHLRGR GRAVYNTFRA
   241  APPPPPIPTY GAVVYQDGFY GAEIYGGYAA YRYAQPAAAA AAYSDSYGRV YAAADPYHHT
   301  IGPAATYSIG TM

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against RBFOX3 can act on the native protein depends on physical access: surface and secreted proteins are reachable by circulating antibodies, intracellular proteins usually are not.

Antibody reachability
Intracellular
Secreted
No
Transmembrane segments
0
Mean surface accessibility (rSASA)
0.62
Highest tissue expression
274 nTPM

Expression across tissuesHPA

Tissue

  • cerebellum: 274 nTPM
  • cerebral cortex: 101 nTPM
  • colon: 82 nTPM
  • urinary bladder: 79 nTPM
  • amygdala: 50 nTPM
  • basal ganglia: 46 nTPM

Single-cell type

  • brain excitatory neurons: 538 nCPM
  • somatotrophs: 516 nCPM
  • retinal ganglion cells: 498 nCPM
  • lactotrophs: 411 nCPM
  • smooth muscle cells: 392 nCPM
  • corticotrophs: 360 nCPM

Immune cell

  • gdT-cell: 0.1 nTPM
  • naive CD8 T-cell: 0.1 nTPM
  • basophil: 0 nTPM
  • classical monocyte: 0 nTPM
  • eosinophil: 0 nTPM
  • intermediate monocyte: 0 nTPM

Brain region

  • cerebellum: 572 nTPM
  • cerebral cortex: 357 nTPM
  • white matter: 207 nTPM
  • hippocampal formation: 158 nTPM
  • pons: 156 nTPM
  • basal ganglia: 145 nTPM

DiseaseUniProt · ClinVar · IEDB · PubMed

Four sources answering four different questions about RBFOX3.

Disease | GeneticClinVar

1 pathogenic / likely-pathogenic of 340 ClinVar records.

Conditions with pathogenic or likely-pathogenic variants.

Genetic constraint and essentialitygnomAD · DepMap

Does the body need this protein intact? Low LOEUF or a strong DepMap dependency means loss or blockade of the protein is likely to be felt.

gnomAD LOEUF (loss-of-function intolerance)
0.17
gnomAD pLI
1
gnomAD missense Z
2.13
DepMap mean gene effect
0.03
DepMap dependency class
none

Cancer expressionTCGA

Across TCGA tumor cohorts, this protein is over-expressed in roughly 3% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).

OntologyGO

Biological processes

Molecular functions

Cellular components

Protein domainsUniProt · Pfam · InterPro

KeywordsUniProt

Antibody and autoantibody relevanceSeroatlas analysis

Seroatlas reads RBFOX3 as an antibody target. Whether an autoantibody or antibody against RBFOX3 could matter depends on whether native RBFOX3 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.

RBFOX3 is annotated as predominantly intracellular. Intracellular proteins are common autoantibody markers, becoming visible to the immune system after cell injury or altered processing, but are usually markers of disease rather than direct drivers.

Annotation status

The present source text does not explicitly label RBFOX3 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.

Canonical record: https://seroatlas.com/gene/RBFOX3. Study-independent annotations aggregated from UniProt, Human Protein Atlas, PubMed, IEDB, Pfam, InterPro, Gene Ontology, AlphaFold, gnomAD, DepMap, ClinVar, TCGA. Catalog release seroatlas-reviewed-human-uniprot-20260313.

Seroatlas is the reference for exploring autoantibody and antibody serology at the human-protein level: the autoreactome and human serome, multiplex serology (HuProt, HuScan, VirScan, PhIP-Seq).

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