BEX3

protein-coding

brain expressed X-linked 3, the group of Brain expressed X-linked family

Gene summary

Enables identical protein binding activity. Predicted to be involved in negative regulation of protein ubiquitination and signal transduction. Predicted to act upstream of or within extrinsic apoptotic signaling pathway via death domain receptors. Located in cytosol. [provided by Alliance of Genome Resources, Jul 2025]

Previous symbols:
  • NGFRAP1

MANE transcript

NM_206917.3

Inheritance

—

ClinVar variants

U:2B:1

Top phenotype

—

gnomAD constraint

pLI —, LoF o/e 0

Max pathogenic AF

—

Genomic locus

chrX:103,376,395-103,378,164

External References & Databases

Transcript & Mutation Effects

hg38 • Region Span ~1.8 kb
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GenCC Phenotypes & Disease Associations

Curated gene-disease validity assertions and inheritance patterns

No GenCC data available for this gene.

ClinVar Associated Diseases & Phenotypes

Reported disease conditions connected to BEX3 variants in ClinVar

1 Conditions Cataloged
not providedTotal: 1

ClinVar Variants & Pathogenicity by Type

Statistics based on transcript NM_206917.3. Only rare variants are included.

We include only reliable ClinVar variants with their consequences to MANE Select, MANE Plus Clinical transcripts, or transcripts with TSL equal to 1. Click a count to filter the variants table below.

Slight differences between displayed counts and ClinVar may occur due to a different transcript/consequence chosen by our variant effect predictor, or because we classify Benign/Likely benign as Likely benign and Pathogenic/Likely pathogenic as Likely pathogenic.

EffectPLPVUSLBBSum
synonymous
1
clinvar
1
clinvar
2
missense
0
nonsense
1
clinvar
1
start loss
0
frameshift
0
splice donor/acceptor (+/-2bp)
0
Total002103
Loading ClinVar variants...

Transcript Catalog

Annotated transcript isoforms across RefSeq and Ensembl databases

Showing 4 of 44 transcripts
Transcript IDSourceProtein IDCoding ExonsMANE Status
NM_206917.3RefSeqNP_996800.11MANE Select
ENST00000361298.9EnsemblENSP00000354843.41MANE Select
NM_001282674.1RefSeqNP_001269603.12Standard
NM_014380.3RefSeqNP_055195.11Standard

Gene Ontology (GO) Annotations & Pathways

Biological processes, molecular functions, cellular components and pathways

Pathways ConsensusPathDB

  • Neurotrophin signaling pathway - Homo sapiens (human)
  • Apoptosis-related network due to altered Notch3 in ovarian cancer
  • Signal Transduction
  • NADE modulates death signalling
  • Death Receptor Signalling

Biological Process

  • activation of cysteine-type endopeptidase activity involved in apoptotic process
  • multicellular organism development
  • extrinsic apoptotic signaling pathway via death domain receptors
  • negative regulation of cysteine-type endopeptidase activity involved in apoptotic process
  • regulation of cysteine-type endopeptidase activity involved in apoptotic process

Molecular Function

  • nerve growth factor receptor binding
  • protein binding
  • cysteine-type endopeptidase activator activity involved in apoptotic process
  • identical protein binding
  • metal ion binding

Cellular Component

  • nucleus
  • cytosol

gnomAD Constraint

Source: gnomAD

Gene type
protein_coding
Transcript type
protein_coding
Transcript
ENST00000372645
Coding exons
1
Length
1738
Individuals with no LoFs
0
Homozygous LoFs
0
Heterozygous LoFs
0
Defined
0
p
0.00
Z-ScoreObservedExpectedObserved/ExpectedMutation RateTotal Possible
Missense0.9952847.20.5930.00000352748
Missense (PolyPhen)311.0830.27067223
Synonymous-0.7571713.51.268.64e-7197
Loss of Function1.6303.090.002.78e-737

Population LoF Frequency

PopulationCAFp-valueStatus
African00.0absent
Latino/Admixed American00.0absent
Ashkenazi Jewish00.0absent
East Asian00.0absent
Finnish00.0absent
European (Non-Finnish)00.0absent
South Asian00.0absent
Other00.0absent

dbNSFP Gene Annotations

Source: dbNSFP

Function
FUNCTION: May be a signaling adapter molecule involved in p75NTR- mediated apoptosis induced by NGF. Plays a role in zinc-triggered neuronal death (By similarity). May play an important role in the pathogenesis of neurogenetic diseases. {ECO:0000250}.;

Intolerance Scores

RVIS EVS
-0.01
RVIS percentile EVS
52.85

Essentials

Essential (gene trap)
N
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