ENST00000316099:c.-106_-103delAAGG

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 1P and 1B. PM2_SupportingBP4

This summary comes from the ClinGen Evidence Repository: The c.50-4791_50-4788del variant in the hepatocyte nuclear factor 4-alpha gene, HNF4A, is a 4-nucleotide-deletion within intron 1 of NM_175914.5. The computational splicing predictor SpliceAI gives a score of 0.00 for donor and acceptor loss, suggesting that the variant has no impact on splicing (BP4). This variant is absent from gnomAD v2.1.1 (PM2_Supporting). In summary, c.50-4791_50-4788del meets the criteria to be classified as VUS for monogenic diabetes. ACMG/AMP criteria applied, as specified by the ClinGen MDEP (specification version 2.0.0, approved 10/11/2023): BP4, PM2_Supporting. LINK:https://erepo.genome.network/evrepo/ui/classification/CA10643872/MONDO:0015967/085

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 31)
Exomes 𝑓: 0.0000056 ( 0 hom. )

Consequence

HNF4A
ENST00000316099 5_prime_UTR

Scores

Not classified

Clinical Significance

Uncertain significance reviewed by expert panel U:3B:1

Conservation

PhyloP100: 4.59
Variant links:
Genes affected
HNF4A (HGNC:5024): (hepatocyte nuclear factor 4 alpha) The protein encoded by this gene is a nuclear transcription factor which binds DNA as a homodimer. The encoded protein controls the expression of several genes, including hepatocyte nuclear factor 1 alpha, a transcription factor which regulates the expression of several hepatic genes. This gene may play a role in development of the liver, kidney, and intestines. Mutations in this gene have been associated with monogenic autosomal dominant non-insulin-dependent diabetes mellitus type I. Alternative splicing of this gene results in multiple transcript variants encoding several different isoforms. [provided by RefSeq, Apr 2012]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2
For more information check the summary or visit ClinGen Evidence Repository.
BP4
For more information check the summary or visit ClinGen Evidence Repository.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
HNF4ANM_175914.5 linkc.50-4791_50-4788delAAGG intron_variant Intron 1 of 9 ENST00000316673.9 NP_787110.2 P41235-5F1D8T0

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
HNF4AENST00000316673.9 linkc.50-4791_50-4788delAAGG intron_variant Intron 1 of 9 1 NM_175914.5 ENSP00000315180.4 P41235-5

Frequencies

GnomAD3 genomes
AF:
0.00000658
AC:
1
AN:
151980
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.00000558
AC:
8
AN:
1433744
Hom.:
0
AF XY:
0.00000562
AC XY:
4
AN XY:
711662
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00000726
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000658
AC:
1
AN:
151980
Hom.:
0
Cov.:
31
AF XY:
0.00
AC XY:
0
AN XY:
74234
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000113

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:3Benign:1
Revision: reviewed by expert panel
LINK: link

Submissions by phenotype

Maturity onset diabetes mellitus in young Uncertain:1Benign:1
Jun 14, 2016
Illumina Laboratory Services, Illumina
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

-
Clinical Genomics, Uppaluri K&H Personalized Medicine Clinic
Significance: Benign
Review Status: criteria provided, single submitter
Collection Method: research

Potent mutations in HNF4A are associated with poor insulin secretion in response to hyperglycemia. Associated with MODY1. Patients initially respond well to sulfonylureas but eventually become insulin dependent. However, more evidence is required to ascertain the role of this particular variant rs886056679 in MODY, yet. -

Monogenic diabetes Uncertain:1
Jan 29, 2025
ClinGen Monogenic Diabetes Variant Curation Expert Panel
Significance: Uncertain significance
Review Status: reviewed by expert panel
Collection Method: curation

The c.50-4791_50-4788del variant in the hepatocyte nuclear factor 4-alpha gene, HNF4A, is a 4-nucleotide-deletion within intron 1 of NM_175914.5. The computational splicing predictor SpliceAI gives a score of 0.00 for donor and acceptor loss, suggesting that the variant has no impact on splicing (BP4). This variant is absent from gnomAD v2.1.1 (PM2_Supporting). In summary, c.50-4791_50-4788del meets the criteria to be classified as VUS for monogenic diabetes. ACMG/AMP criteria applied, as specified by the ClinGen MDEP (specification version 2.0.0, approved 10/11/2023): BP4, PM2_Supporting. -

Hyperinsulinism, Dominant Uncertain:1
Jun 14, 2016
Illumina Laboratory Services, Illumina
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs886056679; hg19: chr20-43029902; API