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 benign. Select a step to read what it means.
Benign.A 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. 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 gnomAD v2.1 exome grpmax filter allele frequency (FAF) is 0.000106 (0.0106%), which exceeds the ENIGMA BS1 Strong threshold of FAF > 0.01% (FAF > 0.0001) in non-cancer, non-founder populations. This is observed primarily in the East Asian subpopulation (6/19,916 alleles, AF = 0.030%).
This is an in-frame deletion (p.Leu1740_Ser1741del) located outside the two ENIGMA-defined clinically important functional domains (PALB2 binding aa 10–40; DNA binding aa 2481–3186). SpliceAI predicts no splicing impact (max delta = 0.00, ≤ 0.1). ENIGMA BP1_Strong criteria are satisfied: in-frame deletion outside a clinically important domain with no splicing predicted.
ENIGMA BRCA2 Table 3 combining rules applied to adjudicated criteria. Two Strong Benign criteria are met: BS1_Strong (gnomAD grpmax FAF = 0.0106% exceeds ENIGMA BS1 Strong threshold of >0.01%) and BP1_Strong (in-frame deletion p.Leu1740_Ser1741del outside clinically important functional domains with SpliceAI max delta = 0.00, no splicing impact). The ENIGMA Table 3 benign rule 'Strong (Benign) >= 2' is satisfied. No pathogenic criteria are met, so there is no conflicting evidence to adjudicate.
Evidence summaries and captured source records, where available. Missing entries should not be interpreted as negative findings.
gnomAD v4.1: 10 / 1,609,336 alleles. Recorded AF 6.21374e-06. Recorded homozygote count 0.
This variant is present in gnomAD v2.1 (AF= 2.49896e-05; MAF= 0.00250%, 7/280116 alleles, homozygotes = 0) and has highest observed frequency in the East Asian population (AF= 0.000301265; MAF= 0.03013%, 6/19916 alleles, homozygotes = 0); grpmax FAF= 0.00010642.
Not available in gnomAD-Canada v1.0.
Recorded SpliceAI maximum delta score: 0.000. Refer to the recorded PP3/BP4 rationale for interpretation.
9 Uncertain significance · 1 Likely benign. ClinVar API review status: criteria provided, conflicting classifications.
OncoKB did not identify variant-specific reviewed functional evidence for this variant; gene-level curated context is available for reviewer follow-up. BRCA2, a tumor suppressor involved in the DNA damage response, is mutated in various cancer types.
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, with the data and sources behind each one.
28 criteria with recorded statuses: 2 met · 13 not met · 0 not assessed · 13 not applicable. Open any row for the full reasoning, the rule and the evidence behind it.
NM_000059.3:c.5218_5223del (p.Leu1740_Ser1741del) is an in-frame deletion of 6 nucleotides in BRCA2 exon 11, removing two amino acids (Leu1740 and Ser1741) from a region between BRC repeats 5 and 6, outside the ENIGMA-defined clinically important functional domains.
The variant is present in gnomAD population databases at a grpmax filter allele frequency of 0.0106% (FAF = 0.000106) in gnomAD v2.1 exomes, exceeding the ENIGMA BS1 Strong threshold of > 0.01% (FAF > 0.0001). Highest subpopulation frequency is in East Asians (AF = 0.030%, 6/19,916 alleles). No homozygotes observed.
As an in-frame deletion located outside the ENIGMA-defined clinically important functional domains (PALB2 binding aa 10–40; DNA binding aa 2481–3186) with no splicing impact predicted (SpliceAI max delta = 0.00), ENIGMA BP1_Strong is met: in-frame deletion outside a clinically important domain without splicing prediction.
Clinical-history likelihood ratio from Li et al. 2020 (PMID:31853058) is 0.77 (8 probands), falling in the neutral zone. Neither PP4 nor BP5 is applicable.
This variant has been reported in ClinVar as Uncertain significance by 9 clinical laboratories and Likely benign by 1 clinical laboratory (ClinVar Variation ID: 51824; review status: criteria provided, single submitter). No expert panel classification exists.
No functional studies, case-control data, segregation data, or variant-specific publications were identified for this variant. Five publications were reviewed in full text; none mention NM_000059.3:c.5218_5223del.
Applying the ENIGMA Table 3 combining rules: two Strong Benign criteria (BS1 + BP1) satisfy the Benign classification threshold (Strong Benign ≥ 2). This variant is classified as BENIGN.
No criteria match.
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Every interpreted variant in BRCA2, mapped onto the exon structure of NM_000059.3. Select a row to find it on the plot.
| Protein | Location | Classification | Link |
|---|
| East Asian5 / 44,818 | 0.00011 |
| South Asian5 / 90,458 | 5.5e-05 |
| East Asian6 / 19,916 | 0.0003 |
| South Asian1 / 29,992 | 3.3e-05 |
This variant is present in gnomAD v4.1 (AF= 6.21374e-06; MAF= 0.00062%, 10/1609336 alleles, homozygotes = 0) and has highest observed frequency in the East Asian population (AF= 0.000111562; MAF= 0.01116%, 5/44818 alleles, homozygotes = 0); grpmax FAF= 4.35e-05.
This variant is present in gnomAD v2.1 (AF= 2.49896e-05; MAF= 0.00250%, 7/280116 alleles, homozygotes = 0) and has highest observed frequency in the East Asian population (AF= 0.000301265; MAF= 0.03013%, 6/19916 alleles, homozygotes = 0); grpmax FAF= 0.00010642.
Not available in gnomAD-Canada v1.0.
SpliceAI predicts no significant splice impact for this variant (max delta score = 0.00).
5 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= 6.21374e-06; MAF= 0.00062%, 10/1609336 alleles, homozygotes = 0) and has highest observed frequency in the East Asian population (AF= 0.000111562; MAF= 0.01116%, 5/44818 alleles, homozygotes = 0); grpmax FAF= 4.35e-05.
This variant is present in gnomAD v2.1 (AF= 2.49896e-05; MAF= 0.00250%, 7/280116 alleles, homozygotes = 0) and has highest observed frequency in the East Asian population (AF= 0.000301265; MAF= 0.03013%, 6/19916 alleles, homozygotes = 0); grpmax FAF= 0.00010642.
Not available in gnomAD-Canada v1.0.
This variant has been reported in ClinVar as Uncertain significance (9 clinical laboratories) and as Likely benign (1 clinical laboratory). (ClinVarID = 51824)
SpliceAI predicts no significant splice impact for this variant (max delta score = 0.00).
OncoKB did not identify variant-specific reviewed functional evidence for this variant; gene-level curated context is available for reviewer follow-up. BRCA2, a tumor suppressor involved in the DNA damage response, is mutated in various cancer types.
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.