rs558332944
Variant summary
Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP4
The NM_002474.3(MYH11):c.3712G>T(p.Gly1238Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000685 in 1,459,966 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict a benign 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. G1238R) has been classified as Uncertain significance.
Frequency
Consequence
NM_002474.3 missense
Scores
Clinical Significance
Conservation
Publications
- lissencephaly 4Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE Submitted by: PanelApp Australia, Ambry Genetics, G2P, Labcorp Genetics (formerly Invitae), Laboratory for Molecular Medicine
- hydranencephalyInheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
- microlissencephalyInheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
- NDE1-related microhydranencephalyInheritance: Unknown, AR Classification: SUPPORTIVE, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), Orphanet
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ACMG classification
Our verdict: Uncertain_significance. The variant received 1 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| MYH11 | NM_002474.3 | c.3712G>T | p.Gly1238Trp | missense_variant | Exon 28 of 41 | ENST00000300036.6 | NP_002465.1 | |
| MYH11 | NM_001040113.2 | c.3733G>T | p.Gly1245Trp | missense_variant | Exon 29 of 43 | ENST00000452625.7 | NP_001035202.1 | |
| MYH11 | NM_001040114.2 | c.3733G>T | p.Gly1245Trp | missense_variant | Exon 29 of 42 | NP_001035203.1 | ||
| MYH11 | NM_022844.3 | c.3712G>T | p.Gly1238Trp | missense_variant | Exon 28 of 42 | NP_074035.1 |
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|---|
| MYH11 | ENST00000300036.6 | c.3712G>T | p.Gly1238Trp | missense_variant | Exon 28 of 41 | 1 | NM_002474.3 | ENSP00000300036.5 | ||
| MYH11 | ENST00000452625.7 | c.3733G>T | p.Gly1245Trp | missense_variant | Exon 29 of 43 | 1 | NM_001040113.2 | ENSP00000407821.2 |
Frequencies
GnomAD3 genomes Cov.: 31
GnomAD2 exomes AF: 0.00000398 AC: 1AN: 251198 AF XY: 0.00000736 show subpopulations
GnomAD4 exome AF: 6.85e-7 AC: 1AN: 1459966Hom.: 0 Cov.: 30 AF XY: 0.00000138 AC XY: 1AN XY: 726232 show subpopulations
Age Distribution
GnomAD4 genome Cov.: 31
ClinVar
Submissions by phenotype
Familial thoracic aortic aneurysm and aortic dissection Uncertain:2
This missense variant replaces glycine with tryptophan at codon 1245 of the MYH11 protein. Computational prediction suggests that this variant may not impact protein structure and function (internally defined REVEL score threshold <= 0.5, PMID: 27666373). To our knowledge, functional studies have not been reported for this variant. This variant has not been reported in individuals affected with cardiovascular disorders in the literature. This variant has been identified in 1/251198 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. -
This missense variant replaces glycine with tryptophan at codon 1245 of the MYH11 protein. Computational prediction suggests that this variant may not impact protein structure and function (internally defined REVEL score threshold <= 0.5, PMID: 27666373). To our knowledge, functional studies have not been reported for this variant. This variant has not been reported in individuals affected with cardiovascular disorders in the literature. This variant has been identified in 1/251198 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. -
Aortic aneurysm, familial thoracic 4 Uncertain:1
This sequence change replaces glycine, which is neutral and non-polar, with tryptophan, which is neutral and slightly polar, at codon 1245 of the MYH11 protein (p.Gly1245Trp). This variant is present in population databases (no rsID available, gnomAD 0.003%). This variant has not been reported in the literature in individuals affected with MYH11-related conditions. ClinVar contains an entry for this variant (Variation ID: 629746). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is not expected to disrupt MYH11 protein function with a negative predictive value of 95%. 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. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at