rs145101532
Variant summary
Our verdict is Benign. Variant got -10 ACMG points: 1P and 11B. PP2BP4_ModerateBP6BS1BS2
The NM_004329.3(BMPR1A):āc.478A>Gā(p.Met160Val) variant causes a missense change. The variant allele was found at a frequency of 0.0000428 in 1,613,966 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. M160T) has been classified as Uncertain significance.
Frequency
Consequence
NM_004329.3 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Benign. Variant got -10 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
BMPR1A | NM_004329.3 | c.478A>G | p.Met160Val | missense_variant | 7/13 | ENST00000372037.8 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
BMPR1A | ENST00000372037.8 | c.478A>G | p.Met160Val | missense_variant | 7/13 | 1 | NM_004329.3 | P1 |
Frequencies
GnomAD3 genomes ? AF: 0.0000657 AC: 10AN: 152174Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.0000637 AC: 16AN: 251348Hom.: 0 AF XY: 0.0000442 AC XY: 6AN XY: 135854
GnomAD4 exome AF: 0.0000404 AC: 59AN: 1461792Hom.: 0 Cov.: 32 AF XY: 0.0000399 AC XY: 29AN XY: 727202
GnomAD4 genome ? AF: 0.0000657 AC: 10AN: 152174Hom.: 0 Cov.: 32 AF XY: 0.0000269 AC XY: 2AN XY: 74346
ClinVar
Submissions by phenotype
Hereditary cancer-predisposing syndrome Uncertain:2Benign:1
Benign, criteria provided, single submitter | clinical testing | Ambry Genetics | Sep 16, 2022 | 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. - |
Uncertain significance, criteria provided, single submitter | curation | Sema4, Sema4 | Mar 05, 2022 | - - |
Uncertain significance, criteria provided, single submitter | clinical testing | Color Diagnostics, LLC DBA Color Health | May 08, 2023 | This missense variant replaces methionine with valine at codon 160 of the BMPR1A 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 been reported in an individual affected with colorectal cancer in the literature (PMID: 28135145). This variant has been identified in 17/282744 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. - |
not provided Uncertain:1Benign:1
Uncertain significance, criteria provided, single submitter | clinical testing | GeneDx | Dec 03, 2020 | In silico analysis, which includes protein predictors and evolutionary conservation, supports that this variant does not alter protein structure/function; Observed in individuals with personal or family history of colon or other cancers (Cabanillas 2017, Mandelker 2017, Yurgelun 2017); This variant is associated with the following publications: (PMID: 28873162, 28135145, 28717660) - |
Likely benign, criteria provided, single submitter | clinical testing | Quest Diagnostics Nichols Institute San Juan Capistrano | Aug 22, 2023 | - - |
BMPR1A-related disorder Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | PreventionGenetics, part of Exact Sciences | Nov 09, 2023 | The BMPR1A c.478A>G variant is predicted to result in the amino acid substitution p.Met160Val. This variant has been reported in individuals with different cancer types, including colorectal cancer and leukemia (Table A4, Yurgelun et al. 2017. PubMed ID: 28135145; Supplementary Table 4a, Zhang et al. 2015. PubMed ID: 26580448; eTable, Mandelker et al. 2017. PubMed ID: 28873162). It has also been reported in healthy controls (Okawa et al. 2023. PubMed ID: 36243179). This variant is reported in 0.016% of alleles in individuals of South Asian descent in gnomAD (http://gnomad.broadinstitute.org/variant/10-88659831-A-G). It has conflicting classifications listed in ClinVar, ranging from benign to uncertain significance (https://www.ncbi.nlm.nih.gov/clinvar/variation/141022/). At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. - |
Juvenile polyposis syndrome;C1864730:Polyposis syndrome, hereditary mixed, 2 Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Fulgent Genetics, Fulgent Genetics | Jan 14, 2022 | - - |
Juvenile polyposis syndrome Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Invitae | Jan 30, 2024 | This sequence change replaces methionine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 160 of the BMPR1A protein (p.Met160Val). This variant is present in population databases (rs145101532, gnomAD 0.02%). This missense change has been observed in individual(s) with colorectal cancer (PMID: 28135145). ClinVar contains an entry for this variant (Variation ID: 141022). Advanced modeling performed at Invitae incorporating data from internal and/or published experimental studies (Invitae) 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. - |
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at