rs12296765
Variant summary
Our verdict is Benign. Variant got -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2
The NM_144670.6(A2ML1):c.1686T>G(p.Val562=) variant causes a splice region, synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00193 in 1,607,200 control chromosomes in the GnomAD database, including 69 homozygotes. In-silico tool predicts a benign outcome for this variant. 1/1 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Benign (★★).
Frequency
Consequence
NM_144670.6 splice_region, synonymous
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Benign. Variant got -21 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
A2ML1 | NM_144670.6 | c.1686T>G | p.Val562= | splice_region_variant, synonymous_variant | 15/36 | ENST00000299698.12 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
A2ML1 | ENST00000299698.12 | c.1686T>G | p.Val562= | splice_region_variant, synonymous_variant | 15/36 | 1 | NM_144670.6 | P1 |
Frequencies
GnomAD3 genomes ? AF: 0.0104 AC: 1585AN: 152196Hom.: 40 Cov.: 32
GnomAD3 exomes AF: 0.00243 AC: 587AN: 241896Hom.: 15 AF XY: 0.00187 AC XY: 245AN XY: 131336
GnomAD4 exome AF: 0.00105 AC: 1522AN: 1454886Hom.: 29 Cov.: 30 AF XY: 0.000919 AC XY: 665AN XY: 723600
GnomAD4 genome ? AF: 0.0104 AC: 1583AN: 152314Hom.: 40 Cov.: 32 AF XY: 0.00988 AC XY: 736AN XY: 74488
ClinVar
Submissions by phenotype
not specified Benign:4
Benign, criteria provided, single submitter | clinical testing | Women's Health and Genetics/Laboratory Corporation of America, LabCorp | Aug 12, 2019 | Variant summary: A2ML1 c.1686T>G (p.Val562Val) alters a non-conserved nucleotide located close to a canonical splice site and therefore could affect mRNA splicing, leading to a significantly altered protein sequence. 5/5 computational tools predict no significant impact on normal splicing. However, these predictions have yet to be confirmed by functional studies. The variant allele was found at a frequency of 0.0024 in 241896 control chromosomes, predominantly at a frequency of 0.034 within the African or African-American subpopulation in the gnomAD database, including 15 homozygotes. The observed variant frequency within African or African-American control individuals in the gnomAD database is approximately 8500-folds over the estimated maximal expected allele frequency for a pathogenic variant in A2ML1 causing Noonan Syndrome phenotype (4e-06), strongly suggesting that the variant is a benign polymorphism found primarily in populations of African or African-American origin. Two ClinVar submissions (evaluation after 2014) cite the variant as benign. Based on the evidence outlined above, the variant was classified as benign. - |
Benign, no assertion criteria provided | clinical testing | Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+ | - | - - |
Benign, no assertion criteria provided | clinical testing | Clinical Genetics, Academic Medical Center | - | - - |
Benign, criteria provided, single submitter | clinical testing | GeneDx | Apr 04, 2017 | 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. - |
not provided Benign:1
Benign, criteria provided, single submitter | clinical testing | Invitae | Jan 29, 2024 | - - |
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at