10-86892110-G-GT
Variant summary
Our verdict is Benign. The variant received -12 ACMG points: 0P and 12B. BP6_Very_StrongBS2
The NM_004329.3(BMPR1A):c.231-10dupT variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000232 in 1,591,538 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Likely benign (★★).
Frequency
Consequence
NM_004329.3 intron
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: Benign. The variant received -12 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes  0.0000329  AC: 5AN: 152160Hom.:  0  Cov.: 32 show subpopulations 
GnomAD2 exomes  AF:  0.0000402  AC: 10AN: 248840 AF XY:  0.0000520   show subpopulations 
GnomAD4 exome  AF:  0.0000222  AC: 32AN: 1439260Hom.:  0  Cov.: 29 AF XY:  0.0000195  AC XY: 14AN XY: 717516 show subpopulations 
Age Distribution
GnomAD4 genome  0.0000328  AC: 5AN: 152278Hom.:  0  Cov.: 32 AF XY:  0.00  AC XY: 0AN XY: 74454 show subpopulations 
ClinVar
Submissions by phenotype
not specified    Benign:2 
This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -
Variant summary: BMPR1A c.231-10dupT alters a non-conserved nucleotide located at a position not widely known to affect splicing. Consensus agreement among computation tools predict no significant impact on normal splicing. However, these predictions have yet to be confirmed by functional studies. The variant allele was found at a frequency of 4e-05 in 248840 control chromosomes (gnomAD). The observed variant frequency is approximately 20-fold of the estimated maximal expected allele frequency for a pathogenic variant in BMPR1A causing Juvenile Polyposis Syndrome phenotype (2e-06), strongly suggesting that the variant is benign. To our knowledge, no occurrence of c.231-10dupT in individuals affected with Juvenile Polyposis Syndrome and no experimental evidence demonstrating its impact on protein function have been reported. Three submitters have cited clinical-significance assessments for this variant to ClinVar after 2014. All submitters classified the variant as benign/likely benign. Based on the evidence outlined above, the variant was classified as benign. -
Juvenile polyposis syndrome    Benign:2 
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This variant is considered likely benign. This variant is intronic and is not expected to impact mRNA splicing. -
Hereditary cancer-predisposing syndrome    Benign:1 
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Computational scores
Source: 
Splicing
 Find out detailed SpliceAI scores and Pangolin per-transcript scores at