rs587781522
Variant summary
Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PP2PP3BS2
The NM_004329.3(BMPR1A):c.1215A>C(p.Lys405Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000062 in 1,614,014 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 Conflicting classifications of pathogenicity (no stars).
Frequency
Consequence
NM_004329.3 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Likely_benign. Variant got -2 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152172Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.0000119 AC: 3AN: 251454Hom.: 0 AF XY: 0.0000147 AC XY: 2AN XY: 135908
GnomAD4 exome AF: 0.00000616 AC: 9AN: 1461842Hom.: 0 Cov.: 31 AF XY: 0.00000413 AC XY: 3AN XY: 727226
GnomAD4 genome AF: 0.00000657 AC: 1AN: 152172Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0AN XY: 74348
ClinVar
Submissions by phenotype
not provided Uncertain:3
Variant summary: The BMPR1A c.1215A>C (p.Lys405Asn) variant involves the alteration of a non-conserved nucleotide. 5/5 in silico tools predict a damaging outcome for this variant. This variant is absent in 121410 control chromosomes. Multiple clinical diagnostic laboratories/reputable databases classified this variant as uncertain significance. The variant of interest has not, to our knowledge, been reported in affected individuals via publications nor evaluated for functional impact by in vivo/vitro studies. Because of the absence of clinical information and the lack of functional studies, the variant is classified as a variant of uncertain significance (VUS) until additional information becomes available. -
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Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Observed in individuals undergoing hereditary cancer panel testing (PMID: 31159747); This variant is associated with the following publications: (PMID: 31159747) -
Juvenile polyposis syndrome Uncertain:3
This variant is classified as a variant of uncertain significance as there is insufficient evidence to determine its impact on protein function and/or cancer risk. -
This sequence change replaces lysine, which is basic and polar, with asparagine, which is neutral and polar, at codon 405 of the BMPR1A protein (p.Lys405Asn). This variant is present in population databases (rs587781522, gnomAD 0.002%). This variant has not been reported in the literature in individuals affected with BMPR1A-related conditions. ClinVar contains an entry for this variant (Variation ID: 141138). Invitae Evidence Modeling incorporating data from in vitro experimental studies (internal data) indicates that this missense variant is not expected to disrupt BMPR1A 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. -
This missense variant replaces lysine with asparagine at codon 405 of the BMPR1A protein. Computational prediction is inconclusive regarding the impact of this variant on protein structure and function (internally defined REVEL score threshold 0.5 < inconclusive < 0.7, PMID: 27666373). To our knowledge, functional studies have not been reported for this variant. This variant has not been reported in individuals affected with BMPR1A-related disorders in the literature. This variant has been observed in a cohort of individuals undergoing hereditary cancer genetic testing (PMID: 31159747). This variant has been identified in 3/251454 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. -
Hereditary cancer-predisposing syndrome Uncertain:2Benign:1
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This missense variant replaces lysine with asparagine at codon 405 of the BMPR1A protein. Computational prediction is inconclusive regarding the impact of this variant on protein structure and function (internally defined REVEL score threshold 0.5 < inconclusive < 0.7, PMID: 27666373). To our knowledge, functional studies have not been reported for this variant. This variant has not been reported in individuals affected with BMPR1A-related disorders in the literature. This variant has been identified in 3/251454 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 alteration is classified as benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -
not specified Uncertain:1
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Polyposis syndrome, hereditary mixed, 2 Uncertain:1
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Generalized juvenile polyposis/juvenile polyposis coli Uncertain:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at