rs150379637
Variant summary
Our verdict is Benign. Variant got -16 ACMG points: 0P and 16B. BP4_StrongBP6_Very_StrongBS2
The NM_005751.5(AKAP9):c.4342A>G(p.Ile1448Val) variant causes a missense change. The variant allele was found at a frequency of 0.000785 in 1,608,302 control chromosomes in the GnomAD database, including 2 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).
Frequency
Consequence
NM_005751.5 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Benign. Variant got -16 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.000651 AC: 99AN: 152124Hom.: 0 Cov.: 33
GnomAD3 exomes AF: 0.000620 AC: 155AN: 250104Hom.: 1 AF XY: 0.000576 AC XY: 78AN XY: 135326
GnomAD4 exome AF: 0.000799 AC: 1163AN: 1456060Hom.: 2 Cov.: 30 AF XY: 0.000770 AC XY: 558AN XY: 724722
GnomAD4 genome AF: 0.000650 AC: 99AN: 152242Hom.: 0 Cov.: 33 AF XY: 0.000658 AC XY: 49AN XY: 74446
ClinVar
Submissions by phenotype
not provided Benign:3
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not specified Benign:1
Variant summary: AKAP9 c.4342A>G (p.Ile1448Val) results in a conservative amino acid change in the encoded protein sequence. Three of five in-silico tools predict a benign effect of the variant on protein function. The variant allele was found at a frequency of 0.00062 in 250104 control chromosomes, predominantly at a frequency of 0.001 within the Non-Finnish European subpopulation in the gnomAD database, including 1 homozygote. The observed variant frequency within Non-Finnish European control individuals in the gnomAD database is approximately 300-fold of the estimated maximal expected allele frequency for a pathogenic variant in AKAP9 causing Long QT Syndrome phenotype (3.3e-06), strongly suggesting that the variant is a benign polymorphism found primarily in populations of Non-Finnish European origin. To our knowledge, no occurrence of c.4342A>G in individuals affected with Long QT Syndrome and no experimental evidence demonstrating its impact on protein function have been reported. The following publication has been ascertained in the context of this evaluation (PMID: 26671970). Two submitters have cited clinical-significance assessments for this variant to ClinVar after 2014. Both submitters classified the variant as likely benign. Based on the evidence outlined above, the variant was classified as benign. -
Long QT syndrome Benign:1
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Cardiovascular phenotype 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