rs199474811
Variant summary
Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM1PM2PP3_Moderate
The NM_000432.4(MYL2):c.310A>G(p.Lys104Glu) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000205 in 1,461,894 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. K104Q) has been classified as Uncertain significance.
Frequency
Consequence
NM_000432.4 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Likely_pathogenic. Variant got 6 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
MYL2 | NM_000432.4 | c.310A>G | p.Lys104Glu | missense_variant | 5/7 | ENST00000228841.15 | |
MYL2 | NM_001406745.1 | c.268A>G | p.Lys90Glu | missense_variant | 4/6 | ||
MYL2 | NM_001406916.1 | c.253A>G | p.Lys85Glu | missense_variant | 5/7 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
MYL2 | ENST00000228841.15 | c.310A>G | p.Lys104Glu | missense_variant | 5/7 | 1 | NM_000432.4 | P1 | |
MYL2 | ENST00000548438.1 | c.268A>G | p.Lys90Glu | missense_variant | 4/6 | 3 | |||
MYL2 | ENST00000663220.1 | c.253A>G | p.Lys85Glu | missense_variant | 5/7 | ||||
MYL2 | ENST00000549029.1 | n.141A>G | non_coding_transcript_exon_variant | 2/2 | 2 |
Frequencies
GnomAD3 genomes ? Cov.: 33
GnomAD3 exomes AF: 0.00000398 AC: 1AN: 251494Hom.: 0 AF XY: 0.00 AC XY: 0AN XY: 135922
GnomAD4 exome AF: 0.00000205 AC: 3AN: 1461894Hom.: 0 Cov.: 35 AF XY: 0.00000138 AC XY: 1AN XY: 727248
GnomAD4 genome ? Cov.: 33
ClinVar
Submissions by phenotype
Hypertrophic cardiomyopathy 10 Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Invitae | Mar 29, 2022 | This sequence change replaces lysine, which is basic and polar, with glutamic acid, which is acidic and polar, at codon 104 of the MYL2 protein (p.Lys104Glu). This variant is present in population databases (rs199474811, gnomAD 0.0009%). This missense change has been observed in individual(s) with hypertrophic cardiomyopathy (PMID: 11748309, 24111713). This variant is also known as Lys103Glu. ClinVar contains an entry for this variant (Variation ID: 31770). Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0"). Experimental studies have shown that this missense change affects MYL2 function (PMID: 24992035, 25770245, 26385864, 33891674). In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. - |
Cardiomyopathy Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Color Diagnostics, LLC DBA Color Health | Nov 21, 2023 | This missense variant replaces lysine with glutamic acid at codon 104 of the MYL2 protein. Computational prediction tools indicate that this variant has a deleterious impact on protein structure and function. Functional studies using murine models have shown that this variant causes altered protein function and overall gene expression profiles (PMID: 24992035, 25770245). This variant has been reported in two individuals affected with hypertrophic cardiomyopathy (PMID: 11748309, 24111713); one of these individuals carried a second compound heterozygous intronic MYL2 variant that segregated with disease in the family (PMID: 11748309). This variant has been identified in 1/251494 chromosomes in the general population by the Genome Aggregation Database (gnomAD). The available evidence is insufficient to determine the role of this variant in disease conclusively. Therefore, this variant is classified as a Variant of Uncertain Significance. - |
not provided Other:1
not provided, no classification provided | curation | Leiden Muscular Dystrophy (MYL2) | Mar 26, 2012 | - - |
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at