rs786202611
Variant summary
Our verdict is Pathogenic. The variant received 14 ACMG points: 14P and 0B. PM2PP3_StrongPP5_Very_Strong
The NM_004329.3(BMPR1A):c.1231G>A(p.Glu411Lys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000657 in 152,134 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 13/22 in silico tools predict a damaging outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★★).
Frequency
Consequence
NM_004329.3 missense
Scores
Clinical Significance
Conservation
Publications
- generalized juvenile polyposis/juvenile polyposis coliInheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Ambry Genetics, Orphanet, Genomics England PanelApp
- juvenile polyposis syndromeInheritance: AD Classification: DEFINITIVE, STRONG Submitted by: ClinGen, Labcorp Genetics (formerly Invitae), G2P
- polyposis syndrome, hereditary mixed, 2Inheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp
- hereditary mixed polyposis syndromeInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
- congenital heart defects, multiple typesInheritance: AD Classification: LIMITED Submitted by: Ambry Genetics
- pulmonary arterial hypertensionInheritance: Unknown Classification: NO_KNOWN Submitted by: ClinGen
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ACMG classification
Our verdict: Pathogenic. The variant received 14 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152134Hom.: 0 Cov.: 32 show subpopulations
GnomAD4 exome Cov.: 31
GnomAD4 genome AF: 0.00000657 AC: 1AN: 152134Hom.: 0 Cov.: 32 AF XY: 0.0000135 AC XY: 1AN XY: 74314 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
Hereditary cancer-predisposing syndrome Pathogenic:1
The p.E411K variant (also known as c.1231G>A), located in coding exon 9 of the BMPR1A gene, results from a G to A substitution at nucleotide position 1231. The glutamic acid at codon 411 is replaced by lysine, an amino acid with some similar properties. This alteration was detected in an individual diagnosed with extensive juvenile colon polyps at age 8 and no significant family history; however, no parental testing data was presented (Pyatt RE, J Mol Diagn 2006 Feb; 8(1):84-8). This variant was reported in individual(s) with features consistent with BMPR1A-related juvenile polyposis syndrome (external communication). Based on internal structural analysis, this alteration eliminates the highly conserved and functionally important APE motif, which has been shown to be important for kinase activity (Yang J et al. J. Mol. Biol., 2012 Jan;415:666-79). This amino acid position is highly conserved in available vertebrate species. In addition, this alteration is predicted to be deleterious by in silico analysis. Based on the majority of available evidence to date, this variant is likely to be pathogenic. -
Juvenile polyposis syndrome Pathogenic:1
This sequence change replaces glutamic acid, which is acidic and polar, with lysine, which is basic and polar, at codon 411 of the BMPR1A protein (p.Glu411Lys). This variant is not present in population databases (gnomAD no frequency). This missense change has been observed in individuals with juvenile polyposis (PMID: 16436638; internal data). ClinVar contains an entry for this variant (Variation ID: 185988). 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) has been performed for this missense variant. However, the output from this modeling did not meet the statistical confidence thresholds required to predict the impact of this variant on BMPR1A protein function. In summary, the currently available evidence indicates that the variant is pathogenic, but additional data are needed to prove that conclusively. Therefore, this variant has been classified as Likely Pathogenic. -
Neoplasm Other:1
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Generalized juvenile polyposis/juvenile polyposis coli Other:1
Variant interpretted as Uncertain significance and reported on 09-23-2016 by Lab or GTR ID 500031. GenomeConnect assertions are reported exactly as they appear on the patient-provided report from the testing laboratory. GenomeConnect staff make no attempt to reinterpret the clinical significance of the variant. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at