8-27469840-C-G
Variant summary
Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4BP6BS2
The NM_000742.4(CHRNA2):āc.215G>Cā(p.Arg72Pro) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000682 in 1,613,994 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).
Frequency
Consequence
NM_000742.4 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Likely_benign. Variant got -6 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000920 AC: 14AN: 152158Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.0000676 AC: 17AN: 251406Hom.: 0 AF XY: 0.0000662 AC XY: 9AN XY: 135894
GnomAD4 exome AF: 0.0000657 AC: 96AN: 1461836Hom.: 0 Cov.: 32 AF XY: 0.0000523 AC XY: 38AN XY: 727218
GnomAD4 genome AF: 0.0000920 AC: 14AN: 152158Hom.: 0 Cov.: 32 AF XY: 0.000108 AC XY: 8AN XY: 74334
ClinVar
Submissions by phenotype
not provided Benign:2
In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -
CHRNA2: BP4 -
Autosomal dominant nocturnal frontal lobe epilepsy 4 Uncertain:1
This variant was classified as: Uncertain significance. The following ACMG criteria were applied in classifying this variant: PP3,BS1. -
Autosomal dominant nocturnal frontal lobe epilepsy Benign:1
- -
Inborn genetic diseases Benign:1
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. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at