rs375574124
Variant summary
Our verdict is Likely benign. Variant got -5 ACMG points: 1P and 6B. PP2BP4_ModerateBS2
The NM_005902.4(SMAD3):c.455C>A(p.Pro152Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000867 in 1,614,098 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts 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. P152A) has been classified as Uncertain significance.
Frequency
Consequence
NM_005902.4 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Likely_benign. Variant got -5 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
SMAD3 | NM_005902.4 | c.455C>A | p.Pro152Gln | missense_variant | 3/9 | ENST00000327367.9 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
SMAD3 | ENST00000327367.9 | c.455C>A | p.Pro152Gln | missense_variant | 3/9 | 1 | NM_005902.4 | P1 |
Frequencies
GnomAD3 genomes ? AF: 0.00000657 AC: 1AN: 152236Hom.: 0 Cov.: 33
GnomAD3 exomes AF: 0.00000398 AC: 1AN: 251432Hom.: 0 AF XY: 0.00 AC XY: 0AN XY: 135900
GnomAD4 exome AF: 0.00000889 AC: 13AN: 1461862Hom.: 0 Cov.: 34 AF XY: 0.00000825 AC XY: 6AN XY: 727232
GnomAD4 genome ? AF: 0.00000657 AC: 1AN: 152236Hom.: 0 Cov.: 33 AF XY: 0.0000134 AC XY: 1AN XY: 74380
ClinVar
Submissions by phenotype
Aneurysm-osteoarthritis syndrome Uncertain:2
Uncertain significance, no assertion criteria provided | clinical testing | Knight Diagnostic Laboratories, Oregon Health and Sciences University | Aug 13, 2015 | - - |
Uncertain significance, criteria provided, single submitter | clinical testing | Illumina Laboratory Services, Illumina | Jan 13, 2018 | This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. - |
Familial thoracic aortic aneurysm and aortic dissection Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Color Diagnostics, LLC DBA Color Health | Dec 11, 2018 | Variant of Uncertain Significance due to insufficient evidence: This missense variant is located in the linker region between MH1 DNA binding domain and MH2 protein-protein interaction domain of the SMAD3 protein. Computational prediction tools and conservation analyses are inconclusive regarding the impact of this variant on the protein function. Computational splicing tools suggest that this variant may not impact RNA splicing. To our knowledge, functional assays have not been performed for this variant nor has this variant been reported in individuals affected with cardiovascular disorders in the literature. This variant has been identified in 1/246232 chromosomes in the general population by the Genome Aggregation Database (gnomAD). Available evidence is insufficient to determine the pathogenicity of this variant conclusively. - |
not provided Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | GeneDx | Sep 27, 2022 | Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge - |
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at