rs1405441693
Variant summary
Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP2PP3
The NM_004329.3(BMPR1A):c.1058A>G(p.Gln353Arg) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000657 in 152,226 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 (★★). Synonymous variant affecting the same amino acid position (i.e. Q353Q) has been classified as Likely benign.
Frequency
Consequence
NM_004329.3 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Uncertain_significance. Variant got 4 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152226Hom.: 0 Cov.: 32
GnomAD4 exome Data not reliable, filtered out with message: AS_VQSR AF: 6.84e-7 AC: 1AN: 1460940Hom.: 0 Cov.: 32 AF XY: 0.00000138 AC XY: 1AN XY: 726796
GnomAD4 genome AF: 0.00000657 AC: 1AN: 152226Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0AN XY: 74370
ClinVar
Submissions by phenotype
Hereditary cancer-predisposing syndrome Uncertain:2
This missense variant replaces glutamine with arginine at codon 353 of the BMPR1A protein. Computational prediction suggests that this variant may have deleterious impact on protein structure and function. To our knowledge, functional studies have not been reported for this variant. This variant has been reported in an individual affected with colorectal cancer (PMID: 27978560). This variant has not been identified 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. -
The p.Q353R variant (also known as c.1058A>G), located in coding exon 8 of the BMPR1A gene, results from an A to G substitution at nucleotide position 1058. The glutamine at codon 353 is replaced by arginine, an amino acid with highly similar properties. This alteration has been previously identified in one individual from a North American cohort of individuals with early onset colon cancer. (Pearlman R et al. JAMA Oncol, 2017 Apr;3:464-471).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. -
Juvenile polyposis syndrome Uncertain:2
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This sequence change replaces glutamine, which is neutral and polar, with arginine, which is basic and polar, at codon 353 of the BMPR1A protein (p.Gln353Arg). This variant is not present in population databases (gnomAD no frequency). This missense change has been observed in individual(s) with colon cancer (PMID: 27978560). ClinVar contains an entry for this variant (Variation ID: 460472). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt BMPR1A protein function with a negative predictive value of 80%. 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. -
Polyposis syndrome, hereditary mixed, 2 Uncertain:1
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not provided Uncertain:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at