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
Consequence
NM_175914.5 synonymous
Scores
Clinical Significance
Conservation
Publications
- maturity-onset diabetes of the young type 1Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), Genomics England PanelApp, G2P
- monogenic diabetesInheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
- diabetes mellitus, noninsulin-dependentInheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp
- Fanconi renotubular syndrome 4 with maturity-onset diabetes of the youngInheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp, G2P
- hyperinsulinism due to HNF4A deficiencyInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
- maturity-onset diabetes of the youngInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
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ACMG classification
Our verdict: Likely_benign. The variant received -2 ACMG points.
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
Ensembl Transcripts
| Sel. | Gene | Transcript | Tags | HGVSc | HGVSp | Effect | Exon Rank | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|---|
| HNF4A | TSL:1 MANE Select | c.906C>T | p.Asn302Asn | synonymous | Exon 8 of 10 | ENSP00000315180.4 | P41235-5 | ||
| HNF4A | TSL:1 | c.972C>T | p.Asn324Asn | synonymous | Exon 8 of 10 | ENSP00000312987.3 | P41235-1 | ||
| HNF4A | TSL:1 | c.972C>T | p.Asn324Asn | synonymous | Exon 8 of 10 | ENSP00000412111.1 | P41235-2 |
Frequencies
GnomAD3 genomes AF: 0.0000131 AC: 2AN: 152240Hom.: 0 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.0000161 AC: 4AN: 247736 AF XY: 0.0000149 show subpopulations
GnomAD4 exome AF: 0.00000411 AC: 6AN: 1460996Hom.: 0 Cov.: 32 AF XY: 0.00000550 AC XY: 4AN XY: 726802 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.0000131 AC: 2AN: 152358Hom.: 0 Cov.: 32 AF XY: 0.0000134 AC XY: 1AN XY: 74504 show subpopulations
ClinVar
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at