About BMPR1A
No gene-level summary was recorded for this case.
No variant summary was recorded for this case.
Five-step scale from benign to pathogenic. This variant is likely benign. Select a step to read what it means.
Likely benign.A likely benign classification under the recorded framework.
Gene-level background from the recorded interpretation.
Words with a dotted underline have a short definition. Hover or tap them.No gene-level summary was recorded for this case.
The recorded framework is Not recorded. The criteria and strengths shown below come from the saved assessment; this page does not recalculate the classification.
The applied criteria and their strengths are shown as assessed under the stated framework.
No pathogenic criterion marked as applied in the recorded assessment.
The variant has an allele frequency of 0.557% in the African/African American population (gnomAD v2.1) and a grpmax FAF of 0.478%, exceeding the BS1 threshold of >0.3% for a rare autosomal dominant disorder (juvenile polyposis syndrome, prevalence ~1/100,000). This frequency is incompatible with a highly penetrant pathogenic variant.
This variant has been observed in the homozygous state in population databases (1 homozygote in gnomAD v2.1, 2 homozygotes in gnomAD v4.1). BMPR1A is associated with autosomal dominant juvenile polyposis syndrome, and homozygous observation in a population database is inconsistent with a highly penetrant pathogenic variant for a dominant disorder with expected early onset.
SpliceAI predicts no splicing impact (max delta score = 0.00). This synonymous variant is not predicted to create or disrupt any splice site, supporting a benign interpretation.
Thirteen clinical laboratories have independently classified this variant as Benign (9 labs including 8 as Benign and 1 as benign) or Likely benign (4 labs) in ClinVar (Variation ID 136525). This represents a strong consensus among clinical diagnostic laboratories that this variant is benign.
gene-specific framework lacked a usable explicit final combination framework, so generic ACMG/AMP 2015 final-combination rules were applied as fallback; applied criteria: BS1 strong benign, BS2 supporting benign, BP4 supporting benign, BP6 supporting benign; combination = 1 strong benign + 3 supporting benign, which maps to Likely Benign.
Evidence summaries and captured source records, where available. Missing entries should not be interpreted as negative findings.
gnomAD v4.1: 545 / 1,614,170 alleles. Recorded AF 0.000337635. Recorded homozygote count 2.
This variant is present in gnomAD v2.1 (AF= 0.000604458; MAF= 0.06045%, 171/282898 alleles, homozygotes = 1) and has highest observed frequency in the African/African American population (AF= 0.00556713; MAF= 0.55671%, 139/24968 alleles, homozygotes = 1); grpmax FAF= 0.00478047.
This variant is present in gnomAD-Canada v1.0 (AF= 0.0006514657980456026, 12/18420 alleles, homozygotes = 0).
Recorded SpliceAI maximum delta score: 0.000. Refer to the recorded PP3/BP4 rationale for interpretation.
8 Benign · 4 Likely benign · 1 benign. ClinVar API review status: criteria provided, multiple submitters, no conflicts.
OncoKB identified curated literature and non-variant-specific oncogenicity context for review; listed oncogenicity label: Unknown Oncogenic Effect.
This variant has not previously been reported in somatic cancers (COSMIC).
This variant does not lie in a statistically significant hotspot.
ACMG/AMP criteria under Not recorded, with the data and sources behind each one.
27 criteria with recorded statuses: 4 met · 15 not met · 1 not assessed · 7 not applicable. Open any row for the full reasoning, the rule and the evidence behind it.
NM_004329.3:c.1299C>T (p.Phe433=) is a synonymous variant in BMPR1A with an allele frequency of 0.557% in the African/African American population (gnomAD v2.1, grpmax FAF 0.48%), exceeding the expected frequency for juvenile polyposis syndrome.
The variant has been observed in the homozygous state in population databases (1 homozygote in gnomAD v2.1; 2 homozygotes in gnomAD v4.1), which is inconsistent with a highly penetrant autosomal dominant disorder.
SpliceAI predicts no splicing impact (max delta score = 0.00), consistent with a benign synonymous variant.
Thirteen clinical diagnostic laboratories have independently classified this variant as Benign or Likely benign in ClinVar (Variation ID 136525).
Applying generic ACMG/AMP 2015 criteria: BS1 (strong benign), BS2 (supporting benign), BP4 (supporting benign), and BP6 (supporting benign) are met. One strong benign plus three supporting benign criteria classifies this variant as Likely Benign.
No criteria match.
No further detail was recorded.
Every interpreted variant in BMPR1A, mapped onto the exon structure of NM_004329.3. Select a row to find it on the plot.
| Protein | Location | Classification | Link |
|---|
| African/African American394 / 75,032 | 0.00532 hom |
| Remaining individuals54 / 62,510 | 0.00086 |
| Admixed American46 / 60,020 | 0.00077 |
| Middle Eastern3 / 6,062 | 0.00049 |
| East Asian3 / 44,886 | 6.7e-05 |
| South Asian4 / 91,080 | 4.4e-05 |
| European (non-Finnish)41 / 1,180,028 | 3.5e-05 |
| African/African American139 / 24,968 | 0.00561 hom |
| Admixed American25 / 35,440 | 0.00071 |
| East Asian1 / 19,954 | 5e-05 |
| European (non-Finnish)5 / 129,200 | 3.9e-05 |
| South Asian1 / 30,616 | 3.3e-05 |
This variant is present in gnomAD v4.1 (AF= 0.000337635; MAF= 0.03376%, 545/1614170 alleles, homozygotes = 2) and has highest observed frequency in the African/African American population (AF= 0.00525109; MAF= 0.52511%, 394/75032 alleles, homozygotes = 2); grpmax FAF= 0.00482358.
This variant is present in gnomAD v2.1 (AF= 0.000604458; MAF= 0.06045%, 171/282898 alleles, homozygotes = 1) and has highest observed frequency in the African/African American population (AF= 0.00556713; MAF= 0.55671%, 139/24968 alleles, homozygotes = 1); grpmax FAF= 0.00478047.
This variant is present in gnomAD-Canada v1.0 (AF= 0.0006514657980456026, 12/18420 alleles, homozygotes = 0).
SpliceAI predicts no significant splice impact for this variant (max delta score = 0.00).
8 paper records listed. No publication is explicitly linked to an applied criterion in the recorded metadata. None of the listed paper records explicitly indicates that the variant is named.
Screenshots represent source records captured during evidence collection. Select one to view the recorded source content.
The evidence statements recorded by the interpretation pipeline. They have not been reinterpreted by the page.
This variant is present in gnomAD v4.1 (AF= 0.000337635; MAF= 0.03376%, 545/1614170 alleles, homozygotes = 2) and has highest observed frequency in the African/African American population (AF= 0.00525109; MAF= 0.52511%, 394/75032 alleles, homozygotes = 2); grpmax FAF= 0.00482358.
This variant is present in gnomAD v2.1 (AF= 0.000604458; MAF= 0.06045%, 171/282898 alleles, homozygotes = 1) and has highest observed frequency in the African/African American population (AF= 0.00556713; MAF= 0.55671%, 139/24968 alleles, homozygotes = 1); grpmax FAF= 0.00478047.
This variant is present in gnomAD-Canada v1.0 (AF= 0.0006514657980456026, 12/18420 alleles, homozygotes = 0).
This variant has been reported in ClinVar as Benign (8 clinical laboratories) and as Likely benign (4 clinical laboratories) and as benign (1 clinical laboratory). (ClinVarID = 136525)
SpliceAI predicts no significant splice impact for this variant (max delta score = 0.00).
OncoKB identified curated literature and non-variant-specific oncogenicity context for review; listed oncogenicity label: Unknown Oncogenic Effect.
This variant does not lie in a statistically significant hotspot. This variant has not previously been reported in somatic cancers (COSMIC).
This variant does not lie in a statistically significant hotspot.