About BRCA2
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 ClinGen BRCA2 VCEP v1.2.0. 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.
This variant meets BRCA2 ENIGMA BS1 at supporting strength because the gnomAD v2.1 grpmax filter allele frequency is 3.433e-05, which is above the BS1 Supporting threshold of 2.0e-05 and at or below the upper BS1 boundary of 1.0e-04. The highest observed population is European (non-Finnish).
This synonymous variant lies within the BRCA2 DNA-binding domain and SpliceAI predicts no significant splice impact, with a maximum delta score of 0.02, which is below the BRCA2 ENIGMA BP4 threshold of 0.1. REVEL and BayesDel scores were not available, but they are not required for this silent-variant BP4 rule.
Expert panel Evidence-based Network for the Interpretation of Germline Mutant Alleles (ENIGMA) classified as Likely benign.
This synonymous variant is located within the BRCA2 DNA-binding domain and also meets BP4 because SpliceAI predicts no significant splice impact, with a maximum delta score of 0.02. Under the BRCA2 ENIGMA rule, a silent variant inside a clinically important functional domain can receive BP7 at supporting strength when BP4 is met.
ENIGMA BRCA1/BRCA2 Specification v1.2 Table 3 final-classification framework
Evidence summaries and captured source records, where available. Missing entries should not be interpreted as negative findings.
gnomAD v4.1: 59 / 1,613,670 alleles. Recorded AF 3.65626e-05. Recorded homozygote count 0.
This variant is present in gnomAD v2.1 (AF= 3.19412e-05; MAF= 0.00319%, 8/250460 alleles, homozygotes = 0) and has highest observed frequency in the European (non-Finnish) population (AF= 7.06801e-05; MAF= 0.00707%, 8/113186 alleles, homozygotes = 0); grpmax FAF= 3.433e-05.
Recorded SpliceAI maximum delta score: 0.020. Refer to the recorded PP3/BP4 rationale for interpretation.
10 Likely benign · 4 Uncertain significance · 1 Benign.
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 ClinGen BRCA2 VCEP v1.2.0, with the data and sources behind each one.
28 criteria with recorded statuses: 4 met · 5 not met · 10 not assessed · 9 not applicable. Open any row for the full reasoning, the rule and the evidence behind it.
The BRCA2 c.7992T>A (p.Ile2664=) variant has been reported in ClinVar, including a likely benign expert panel classification from ENIGMA and multiple likely benign clinical laboratory submissions.
In population databases, the variant is present at low frequency; in gnomAD v2.1 the grpmax filter allele frequency is 3.433e-05, which exceeds the BRCA2 ENIGMA BS1 Supporting threshold of 2.0e-05, and gnomAD v4.1 shows a consistent low-frequency signal with grpmax filter allele frequency 3.666e-05.
SpliceAI predicts no significant splice effect with a maximum delta score of 0.02, which is below the BRCA2 ENIGMA BP4/BP7 threshold of 0.1 and below the PP3 threshold of 0.2, supporting BP4 and BP7 rather than a deleterious splicing prediction.
No criteria match.
BRCA2 ENIGMA BS1_Supporting: FAF >0.00002 and ≤0.0001.
BRCA2 ENIGMA BP4_Supporting applies to a silent variant inside a clinically important domain if SpliceAI ≤0.1.
BRCA2 ENIGMA BP7_Supporting applies to a silent variant inside a clinically important domain if BP4 is met.
BRCA2 ENIGMA PVS1 applies to null variants or qualifying RNA evidence; this variant does not meet those entry conditions.
PM2_Supporting requires absence from controls in the specified gnomAD datasets.
For silent variants, BRCA2 ENIGMA PP3 requires SpliceAI ≥0.2.
BA1 requires FAF >0.001 in the specified gnomAD dataset(s).
BRCA2 ENIGMA BP1_Strong requires a silent or missense variant outside clinically important functional domains with no predicted splice impact.
PS1 requires an established pathogenic/likely pathogenic comparator with the same relevant consequence.
PS3 requires a calibrated variant-specific damaging functional result.
PS4 requires statistically increased prevalence in affected individuals versus controls.
PM3 in BRCA2 is reserved for qualifying Fanconi anemia cases with co-occurring variants.
PP1 requires quantitative co-segregation evidence.
PP4 in BRCA2 ENIGMA requires a qualifying multifactorial clinical-history likelihood ratio.
BS2 in BRCA2 requires qualifying point-based evidence in the ENIGMA framework.
BS3 requires a calibrated variant-specific non-damaging functional result.
BS4 requires quantitative evidence for lack of segregation.
BP5 in BRCA2 ENIGMA requires a qualifying multifactorial clinical-history likelihood ratio in the benign direction.
Not applicable in BRCA2 ENIGMA v1.2.
Not applicable in BRCA2 ENIGMA v1.2.
Not applicable in BRCA2 ENIGMA v1.2.
BRCA2 ENIGMA PM5 is PTC-specific rather than classic same-residue missense PM5.
Not applicable in BRCA2 ENIGMA v1.2.
Not applicable in BRCA2 ENIGMA v1.2.
Not applicable in BRCA2 ENIGMA v1.2.
Not applicable in BRCA2 ENIGMA v1.2.
Not applicable in BRCA2 ENIGMA v1.2.
Every interpreted variant in BRCA2, mapped onto the exon structure of NM_000059.4. Select a row to find it on the plot.
| Protein | Location | Classification | Link |
|---|
| European (non-Finnish)55 / 1,179,916 | 4.7e-05 |
| Remaining individuals2 / 62,496 | 3.2e-05 |
| Admixed American1 / 60,006 | 1.7e-05 |
| European (Finnish)1 / 63,762 | 1.6e-05 |
| European (non-Finnish)8 / 113,186 | 7.1e-05 |
This variant is present in gnomAD v4.1 (AF= 3.65626e-05; MAF= 0.00366%, 59/1613670 alleles, homozygotes = 0) and has highest observed frequency in the European (non-Finnish) population (AF= 4.66135e-05; MAF= 0.00466%, 55/1179916 alleles, homozygotes = 0); grpmax FAF= 3.666e-05.
This variant is present in gnomAD v2.1 (AF= 3.19412e-05; MAF= 0.00319%, 8/250460 alleles, homozygotes = 0) and has highest observed frequency in the European (non-Finnish) population (AF= 7.06801e-05; MAF= 0.00707%, 8/113186 alleles, homozygotes = 0); grpmax FAF= 3.433e-05.
BRCA2 ENIGMA BP4_Supporting applies to a silent variant inside a clinically important domain if SpliceAI ≤0.1.
BRCA2 ENIGMA BP7_Supporting applies to a silent variant inside a clinically important domain if BP4 is met.
For silent variants, BRCA2 ENIGMA PP3 requires SpliceAI ≥0.2.
SpliceAI predicts no significant splice impact for this variant (max delta score = 0.02).
10 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= 3.65626e-05; MAF= 0.00366%, 59/1613670 alleles, homozygotes = 0) and has highest observed frequency in the European (non-Finnish) population (AF= 4.66135e-05; MAF= 0.00466%, 55/1179916 alleles, homozygotes = 0); grpmax FAF= 3.666e-05.
This variant is present in gnomAD v2.1 (AF= 3.19412e-05; MAF= 0.00319%, 8/250460 alleles, homozygotes = 0) and has highest observed frequency in the European (non-Finnish) population (AF= 7.06801e-05; MAF= 0.00707%, 8/113186 alleles, homozygotes = 0); grpmax FAF= 3.433e-05.
This variant has been reported in ClinVar as Likely benign (10 clinical laboratories) and as Uncertain significance (4 clinical laboratories) and as Benign (1 clinical laboratory) and as Likely benign by Evidence-based Network for the Interpretation of Germline Mutant Alleles (ENIGMA) (expert panel). (ClinVarID = 52463)
SpliceAI predicts no significant splice impact for this variant (max delta score = 0.02).
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.