rs199779214
Variant summary
Our verdict is Benign. Variant got -9 ACMG points: 0P and 9B. BP4_StrongBP6BS2
The NM_020822.3(KCNT1):c.3289G>A(p.Gly1097Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000786 in 1,602,106 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 12/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G1097V) has been classified as Uncertain significance.
Frequency
Consequence
NM_020822.3 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Benign. Variant got -9 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
KCNT1 | NM_020822.3 | c.3289G>A | p.Gly1097Ser | missense_variant | 29/31 | ENST00000371757.7 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
KCNT1 | ENST00000371757.7 | c.3289G>A | p.Gly1097Ser | missense_variant | 29/31 | 1 | NM_020822.3 | A2 |
Frequencies
GnomAD3 genomes ? AF: 0.0000394 AC: 6AN: 152136Hom.: 0 Cov.: 33
GnomAD3 exomes AF: 0.000156 AC: 33AN: 211090Hom.: 1 AF XY: 0.000146 AC XY: 17AN XY: 116684
GnomAD4 exome AF: 0.0000828 AC: 120AN: 1449852Hom.: 1 Cov.: 36 AF XY: 0.0000819 AC XY: 59AN XY: 720248
GnomAD4 genome ? AF: 0.0000394 AC: 6AN: 152254Hom.: 0 Cov.: 33 AF XY: 0.0000134 AC XY: 1AN XY: 74456
ClinVar
Submissions by phenotype
not provided Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Revvity Omics, Revvity | Jul 09, 2020 | - - |
not specified Benign:1
Likely benign, criteria provided, single submitter | clinical testing | GeneDx | Dec 22, 2016 | This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. - |
Developmental and epileptic encephalopathy, 14;C3554306:Autosomal dominant nocturnal frontal lobe epilepsy 5 Benign:1
Likely benign, criteria provided, single submitter | clinical testing | Invitae | Dec 11, 2023 | - - |
Inborn genetic diseases Benign:1
Likely benign, criteria provided, single submitter | clinical testing | Ambry Genetics | Oct 13, 2023 | This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. - |
Developmental and epileptic encephalopathy, 14 Benign:1
Likely benign, criteria provided, single submitter | clinical testing | Genome-Nilou Lab | Mar 15, 2022 | - - |
Autosomal dominant nocturnal frontal lobe epilepsy 5 Benign:1
Likely benign, criteria provided, single submitter | clinical testing | Genome-Nilou Lab | Mar 15, 2022 | - - |
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at