rs186151007

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4BP7

This summary comes from the ClinGen Evidence Repository: The c.906C>T variant in the HNF4 homeobox A gene, HNF4A, is a synonymous variant at codon 302 (p.(Asn302=)) of NM_175914.5.This variant is not predicted by SpliceAI to impact splicing (SpliceAI score of 0.001 for donor loss, which is less than the MDEP cutoff of 0.2) and is not highly conserved (phyloP100way score of -2.537, which is below the MDEP cutoff of 2.0) (BP4, BP7). The Grpmax filtering allele frequency of the c.906C>T variant in gnomAD v2.1.1 is 0.000011, which falls between ClinGen MDEP-established cutoffs for PM2_Supporting and BS1; thus, neither criterion will be applied. In summary, c.906C>T meets the criteria to be classified as likely benign for monogenic diabetes. ACMG/AMP criteria applied, as specified by the ClinGen MDEP (specification version 2.0.0, approved 10/11/2023): BP4, BP7. LINK:https://erepo.genome.network/evrepo/ui/classification/CA9870405/MONDO:0015967/085

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000041 ( 0 hom. )

Consequence

HNF4A
NM_175914.5 synonymous

Scores

2

Clinical Significance

Likely benign reviewed by expert panel B:3

Conservation

PhyloP100: -2.49

Publications

1 publications found
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]
HNF4A Gene-Disease associations (from GenCC):
  • maturity-onset diabetes of the young type 1
    Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), Genomics England PanelApp, G2P
  • monogenic diabetes
    Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
  • diabetes mellitus, noninsulin-dependent
    Inheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp
  • Fanconi renotubular syndrome 4 with maturity-onset diabetes of the young
    Inheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp, G2P
  • hyperinsulinism due to HNF4A deficiency
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • maturity-onset diabetes of the young
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

BP4
For more information check the summary or visit ClinGen Evidence Repository.
BP7
For more information check the summary or visit ClinGen Evidence Repository.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_175914.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
HNF4A
NM_175914.5
MANE Select
c.906C>Tp.Asn302Asn
synonymous
Exon 8 of 10NP_787110.2
HNF4A
NM_000457.6
c.972C>Tp.Asn324Asn
synonymous
Exon 8 of 10NP_000448.3
HNF4A
NM_001258355.2
c.951C>Tp.Asn317Asn
synonymous
Exon 9 of 11NP_001245284.1

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
HNF4A
ENST00000316673.9
TSL:1 MANE Select
c.906C>Tp.Asn302Asn
synonymous
Exon 8 of 10ENSP00000315180.4P41235-5
HNF4A
ENST00000316099.10
TSL:1
c.972C>Tp.Asn324Asn
synonymous
Exon 8 of 10ENSP00000312987.3P41235-1
HNF4A
ENST00000415691.2
TSL:1
c.972C>Tp.Asn324Asn
synonymous
Exon 8 of 10ENSP00000412111.1P41235-2

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152240
Hom.:
0
Cov.:
32
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:
0.000193
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
GnomAD2 exomes
AF:
0.0000161
AC:
4
AN:
247736
AF XY:
0.0000149
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000180
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000411
AC:
6
AN:
1460996
Hom.:
0
Cov.:
32
AF XY:
0.00000550
AC XY:
4
AN XY:
726802
show subpopulations
African (AFR)
AF:
0.0000299
AC:
1
AN:
33478
American (AMR)
AF:
0.00
AC:
0
AN:
44696
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26132
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39692
South Asian (SAS)
AF:
0.0000116
AC:
1
AN:
86224
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
52704
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.00000360
AC:
4
AN:
1111926
Other (OTH)
AF:
0.00
AC:
0
AN:
60376
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.517
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152358
Hom.:
0
Cov.:
32
AF XY:
0.0000134
AC XY:
1
AN XY:
74504
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41590
American (AMR)
AF:
0.00
AC:
0
AN:
15304
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.000193
AC:
1
AN:
5176
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4832
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10626
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68038
Other (OTH)
AF:
0.00
AC:
0
AN:
2116
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.575
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.0000564
Hom.:
0
Bravo
AF:
0.00000378
Asia WGS
AF:
0.000289
AC:
1
AN:
3478
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

ClinVar submissions
Significance:Likely benign
Revision:reviewed by expert panel
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
-
1
Maturity-onset diabetes of the young (1)
-
-
1
Monogenic diabetes (1)
-
-
1
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.43
CADD
Benign
5.5
DANN
Benign
0.88
PhyloP100
-2.5

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
Details are displayed if max score is > 0.2

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

Publications

Other links and lift over

dbSNP: rs186151007; hg19: chr20-43052737; COSMIC: COSV100291071; API