chr11-47332645-A-C
Variant summary
Our verdict is Likely pathogenic. Variant got 8 ACMG points: 8P and 0B. PM1PM2PP3_Strong
The NM_000256.3(MYBPC3):āc.3548T>Gā(p.Phe1183Cys) variant causes a missense change. The variant allele was found at a frequency of 0.00000657 in 152,132 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 (ā ā ). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. F1183L) has been classified as Uncertain significance.
Frequency
Consequence
NM_000256.3 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Likely_pathogenic. Variant got 8 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
MYBPC3 | NM_000256.3 | c.3548T>G | p.Phe1183Cys | missense_variant | 32/35 | ENST00000545968.6 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
MYBPC3 | ENST00000545968.6 | c.3548T>G | p.Phe1183Cys | missense_variant | 32/35 | 5 | NM_000256.3 | P4 | |
MYBPC3 | ENST00000399249.6 | c.3548T>G | p.Phe1183Cys | missense_variant | 31/34 | 5 | A2 |
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152132Hom.: 0 Cov.: 33
GnomAD4 exome Cov.: 35
GnomAD4 genome AF: 0.00000657 AC: 1AN: 152132Hom.: 0 Cov.: 33 AF XY: 0.00 AC XY: 0AN XY: 74322
ClinVar
Submissions by phenotype
Cardiomyopathy Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | CHEO Genetics Diagnostic Laboratory, Children's Hospital of Eastern Ontario | May 19, 2023 | - - |
not provided Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine | Mar 23, 2022 | proposed classification - variant undergoing re-assessment, contact laboratory - |
Hypertrophic cardiomyopathy Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Invitae | Apr 15, 2022 | 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. This sequence change replaces phenylalanine, which is neutral and non-polar, with cysteine, which is neutral and slightly polar, at codon 1183 of the MYBPC3 protein (p.Phe1183Cys). This variant is not present in population databases (gnomAD no frequency). This missense change has been observed in individual(s) with hypertrophic cardiomyopathy (PMID: 24793961, 27532257, 33673806). ClinVar contains an entry for this variant (Variation ID: 42720). Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be disruptive. - |
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at