11-47337481-C-G
Variant summary
Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM1
The NM_000256.3(MYBPC3):c.2512G>C(p.Glu838Gln) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000013 in 1,613,886 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. E838K) has been classified as Uncertain significance.
Frequency
Consequence
NM_000256.3 missense
Scores
Clinical Significance
Conservation
Genome browser will be placed here
ACMG classification
Verdict is Uncertain_significance. Variant got 2 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
MYBPC3 | NM_000256.3 | c.2512G>C | p.Glu838Gln | missense_variant | 25/35 | ENST00000545968.6 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
MYBPC3 | ENST00000545968.6 | c.2512G>C | p.Glu838Gln | missense_variant | 25/35 | 5 | NM_000256.3 | P4 | |
MYBPC3 | ENST00000399249.6 | c.2512G>C | p.Glu838Gln | missense_variant | 24/34 | 5 | A2 | ||
MYBPC3 | ENST00000544791.1 | c.*17G>C | 3_prime_UTR_variant, NMD_transcript_variant | 25/27 | 5 |
Frequencies
GnomAD3 genomes ? AF: 0.0000197 AC: 3AN: 152162Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.0000161 AC: 4AN: 248956Hom.: 0 AF XY: 0.0000296 AC XY: 4AN XY: 135050
GnomAD4 exome AF: 0.0000123 AC: 18AN: 1461606Hom.: 0 Cov.: 33 AF XY: 0.0000151 AC XY: 11AN XY: 727106
GnomAD4 genome ? AF: 0.0000197 AC: 3AN: 152280Hom.: 0 Cov.: 32 AF XY: 0.0000134 AC XY: 1AN XY: 74458
ClinVar
Submissions by phenotype
not specified Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine | Dec 11, 2013 | The Glu838Gln variant in MYBPC3 has not been previously reported in individuals with cardiomyopathy or large European American and African American cohorts. Co mputational analyses (biochemical amino acid properties, conservation, AlignGVGD , PolyPhen2, and SIFT) do not provide strong support for or against an impact to the protein. Additional information is needed to fully assess the clinical sig nificance of the Glu838Gln variant. - |
Hypertrophic cardiomyopathy 4;C3715165:Left ventricular noncompaction 10 Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Fulgent Genetics, Fulgent Genetics | Sep 14, 2021 | - - |
Hypertrophic cardiomyopathy Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Invitae | Dec 21, 2023 | This sequence change replaces glutamic acid, which is acidic and polar, with glutamine, which is neutral and polar, at codon 838 of the MYBPC3 protein (p.Glu838Gln). This variant is present in population databases (rs397515969, gnomAD 0.004%). This missense change has been observed in individual(s) with dilated cardiomyopathy (PMID: 32826072). ClinVar contains an entry for this variant (Variation ID: 179456). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be disruptive. 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. - |
Cardiovascular phenotype Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Ambry Genetics | Feb 08, 2023 | The p.E838Q variant (also known as c.2512G>C), located in coding exon 25 of the MYBPC3 gene, results from a G to C substitution at nucleotide position 2512. The glutamic acid at codon 838 is replaced by glutamine, an amino acid with highly similar properties. This alteration has been reported in a dilated cardiomyopathy (DCM) cohort (Peña-Peña ML et al. Med Clin (Barc), 2021 May;156:485-495). This amino acid position is highly conserved in available vertebrate species. In addition, the in silico prediction for this alteration is inconclusive. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. - |
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at