FOXA3

protein-coding

forkhead box A3, the group of Forkhead boxes

Gene summary

This gene encodes a member of the forkhead class of DNA-binding proteins. These hepatocyte nuclear factors are transcriptional activators for liver-specific transcripts such as albumin and transthyretin, and they also interact with chromatin. Similar family members in mice have roles in the regulation of metabolism and in the differentiation of the pancreas and liver. The crystal structure of a similar protein in rat has been resolved. [provided by RefSeq, Jul 2008]

Previous symbols:
  • HNF3G

MANE transcript

NM_004497.3

Inheritance

—

ClinVar variants

U:45B:5

Top phenotype

FOXA3-related disorder

gnomAD constraint

pLI —, LoF o/e 0.12

Max pathogenic AF

—

Genomic locus

chr19:45,863,989-45,873,797

External References & Databases

Transcript & Mutation Effects

hg38 • Region Span ~9.8 kb
Loading mutation effect viewer...

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 FOXA3 variants in ClinVar

2 Conditions Cataloged
not specifiedTotal: 44
FOXA3-related disorderTotal: 4

ClinVar Variants & Pathogenicity by Type

Statistics based on transcript NM_004497.3. 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
2
clinvar
1
clinvar
3
missense
45
clinvar
2
clinvar
47
nonsense
0
start loss
0
frameshift
0
splice donor/acceptor (+/-2bp)
0
Total00454150
Loading ClinVar variants...

Transcript Catalog

Annotated transcript isoforms across RefSeq and Ensembl databases

Showing 4 of 10 transcripts
Transcript IDSourceProtein IDCoding ExonsMANE Status
NM_004497.3RefSeqNP_004488.22MANE Select
ENST00000302177.3EnsemblENSP00000304004.12MANE Select
ENST00000594297.1EnsemblENSP00000470816.11Standard
ENST00000876764.1EnsemblENSP00000546823.12Standard

Model Organisms & Knockout Phenotypes

Observed phenotypic effects in mouse and zebrafish models

Gene / ModelOrganismObserved Phenotype
foxa3Danio rerio

Structure: goblet cell

Quality: disrupted

abnormal

Gene Ontology (GO) Annotations & Pathways

Biological processes, molecular functions, cellular components and pathways

Pathways ConsensusPathDB

  • Maturity onset diabetes of the young - Homo sapiens (human)
  • FOXA1 transcription factor network
  • FOXA2 and FOXA3 transcription factor networks

Biological Process

  • cellular glucose homeostasis
  • chromatin organization
  • regulation of transcription by RNA polymerase II
  • multicellular organism development
  • spermatogenesis

Molecular Function

  • DNA-binding transcription factor activity, RNA polymerase II-specific
  • DNA-binding transcription factor activity
  • transcription factor binding
  • protein domain specific binding
  • sequence-specific DNA binding

Cellular Component

  • nucleus
  • nucleoplasm
  • actin cytoskeleton

gnomAD Constraint

Source: gnomAD

Gene type
protein_coding
Transcript type
protein_coding
Transcript
ENST00000302177
Coding exons
2
Length
9809
Individuals with no LoFs
125735
Homozygous LoFs
0
Heterozygous LoFs
13
Defined
125748
p
0.0000517
Z-ScoreObservedExpectedObserved/ExpectedMutation RateTotal Possible
Missense0.2432072170.9540.00001362209
Missense (PolyPhen)3353.510.61671515
Synonymous-0.75110797.61.100.00000658774
Loss of Function2.4218.680.1153.71e-7116

Population LoF Frequency

PopulationCAFp-valueStatus
African00.0absent
Latino/Admixed American0.0000290.000029rare
Ashkenazi Jewish00.0absent
East Asian00.0absent
Finnish0.0000470.000046rare
European (Non-Finnish)0.0000740.000070rare
South Asian0.0000990.000098rare
Other00.0absent

dbNSFP Gene Annotations

Source: dbNSFP

Function
FUNCTION: Transcription factor that is thought to act as a 'pioneer' factor opening the compacted chromatin for other proteins through interactions with nucleosomal core histones and thereby replacing linker histones at target enhancer and/or promoter sites (By similarity). Originally described as a transcription activator for a number of liver genes such as AFP, albumin, tyrosine aminotransferase, PEPCK, etc. Interacts with the cis-acting regulatory regions of these genes. Involved in glucose homeostasis; binds to and activates transcription from the G6PC promoter. Binds to the CYP3A4 promoter and activates its transcription in cooperation with CEBPA. Binds to the CYP3A7 promoter together with members of the CTF/NF-I family. Involved in regulation of neuronal-specific transcription. May be involved in regulation of spermatogenesis. {ECO:0000250, ECO:0000269|PubMed:12695546}.;

Recessive Scores

pRec
0.245

Intolerance Scores

LoFtool
0.0307
RVIS EVS
-0.49
RVIS percentile EVS
22.09

Essentials

Essential (CRISPR)
N
Essential (CRISPR2)
S
Essential (gene trap)
N
Indispensability pred.
E
Indispensability score
0.919

Gene Damage Prediction

AllRecessiveDominant
MendelianMediumMediumMedium
Primary ImmunodeficiencyMediumMediumMedium
CancerMediumMediumMedium
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