rs74315390
Variant summary
Our verdict is Pathogenic. Variant got 19 ACMG points: 19P and 0B. PM1PM2PM5PP2PP3_StrongPP5_Very_Strong
The NM_172107.4(KCNQ2):c.916G>C(p.Ala306Pro) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. 12/21 in silico tools predict a damaging outcome for this variant. Variant has been reported in ClinVar as Pathogenic (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A306T) has been classified as Pathogenic.
Frequency
Consequence
NM_172107.4 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Pathogenic. Variant got 19 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
KCNQ2 | NM_172107.4 | c.916G>C | p.Ala306Pro | missense_variant | 6/17 | ENST00000359125.7 | NP_742105.1 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
KCNQ2 | ENST00000359125.7 | c.916G>C | p.Ala306Pro | missense_variant | 6/17 | 1 | NM_172107.4 | ENSP00000352035.2 |
Frequencies
GnomAD3 genomes Cov.: 33
GnomAD4 exome Cov.: 31
GnomAD4 genome Cov.: 33
ClinVar
Submissions by phenotype
not provided Pathogenic:1
Pathogenic, criteria provided, single submitter | clinical testing | GeneDx | Dec 03, 2024 | Not observed in large population cohorts (gnomAD); This substitution is predicted to be within the transmembrane segment S6; This variant is associated with the following publications: (PMID: 25959266, 29655203, 31832524, 31152295) - |
Seizures, benign familial neonatal, 1;C3150986:Developmental and epileptic encephalopathy, 7 Pathogenic:1
Pathogenic, criteria provided, single submitter | clinical testing | Institute of Human Genetics, Clinical Exome/Genome Diagnostics Group, University Hospital Bonn | Feb 15, 2023 | - - |
Complex neurodevelopmental disorder Other:1
not provided, no classification provided | literature only | Channelopathy-Associated Epilepsy Research Center | - | - - |
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at