rs553389226
Variant summary
Our verdict is Benign. Variant got -9 ACMG points: 0P and 9B. BP4_StrongBP6BS2
The NM_020822.3(KCNT1):c.3196G>A(p.Val1066Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000174 in 1,611,096 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/21 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. V1066A) 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.3196G>A | p.Val1066Met | missense_variant | 29/31 | ENST00000371757.7 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
KCNT1 | ENST00000371757.7 | c.3196G>A | p.Val1066Met | missense_variant | 29/31 | 1 | NM_020822.3 | A2 |
Frequencies
GnomAD3 genomes ? AF: 0.0000329 AC: 5AN: 151954Hom.: 0 Cov.: 33
GnomAD3 exomes AF: 0.0000296 AC: 7AN: 236342Hom.: 0 AF XY: 0.0000384 AC XY: 5AN XY: 130368
GnomAD4 exome AF: 0.0000151 AC: 22AN: 1459024Hom.: 0 Cov.: 37 AF XY: 0.0000165 AC XY: 12AN XY: 725748
GnomAD4 genome ? AF: 0.0000395 AC: 6AN: 152072Hom.: 0 Cov.: 33 AF XY: 0.0000269 AC XY: 2AN XY: 74344
ClinVar
Submissions by phenotype
not provided Uncertain:1Benign:2
Likely benign, criteria provided, single submitter | clinical testing | CeGaT Center for Human Genetics Tuebingen | Apr 01, 2022 | KCNT1: BP4, BS2 - |
Likely benign, criteria provided, single submitter | clinical testing | GeneDx | May 02, 2018 | 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. - |
Uncertain significance, criteria provided, single submitter | clinical testing | Revvity Omics, Revvity | Oct 30, 2023 | - - |
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 15, 2023 | - - |
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at