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LYFE SCIENCES
Project: HERA
NM_000059.3:c.8059G>T
p.Val2687Phe  ·  BRCA2
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Classification rationale
1

The BRCA2 c.8059G>T (p.Val2687Phe, p.V2687F) variant has been observed in somatic cancer once in COSMIC (COSV66454617) and has been reported in ClinVar with an ENIGMA expert-panel classification of uncertain significance alongside mixed clinical-laboratory submissions.

clinvar ↗ cspec ↗
2

This variant is absent from gnomAD v2.1 and gnomAD v4.1, supporting rarity in population databases.

gnomad_v2 ↗ gnomad_v4 ↗
3

In a published calibrated BRCA2 functional study, p.(Val2687Phe) showed protein function similar to pathogenic control variants, and the ENIGMA BRCA2 functional table assigns PS3 at Strong strength for this damaging result.

PMID:33609447 ↗
4

Computational data support a damaging protein effect, with BayesDel no-AF 0.369316 above the BRCA2 ENIGMA PP3 threshold of 0.30 and REVEL 0.811, while SpliceAI is low at 0.01 and does not suggest a meaningful splice effect.

spliceai ↗ cspec ↗
Applied criteria
Met
Not met
Not assessed
N/A
Very strong
Strong
Moderate
Supporting
Pathogenic evidence
PVS
PVS1
PS
PS1
PS2
PS3
PS4
PM
PM1
PM2
PM3
PM4
PM5
PM6
PP
PP1
PP2
PP3
PP4
PP5
Benign evidence
BA
BA1
BS
BS1
BS2
BS3
BS4
BP
BP1
BP2
BP3
BP4
BP5
BP6
BP7
PVS1
—
—
Rationale
Select a criterion to inspect its explanation.
Evidence used
  • —
Gaps remaining
  • —
Rule
—
Publications
—
Research and evidence
ClinVar evidence
02
ClinVar
This variant has been reported in ClinVar as Uncertain significance (3 clinical laboratories) and as Likely pathogenic (2 clinical laboratories) and as Uncertain Significance by ClinGen ENIGMA BRCA1 and BRCA2 Variant Curation Expert Panel, ClinGen (expert panel).
ClinVar ↗
Functional evidence
03
Functional
OncoKB: Likely Oncogenic
OncoKB identified variant-specific curated literature and context relevant to functional review; biological-effect context: Likely Loss-of-function; curated oncogenicity label: Likely Oncogenic.
OncoKB ↗
In silico evidence
04
In silico
SpliceAI predicts no significant splice impact for this variant (max delta score = 0.01). REVEL score = 0.811. BayesDel score = 0.369316.
SpliceAI ↗
COSMIC evidence
05
COSMIC
This variant does not lie in a statistically significant hotspot. This variant has previously been reported in somatic cancers (COSMIC; COSV66454617, n = 1 times).
COSMIC ↗
Cancer hotspots evidence
06
Cancer hotspots Not found
This variant does not lie in a statistically significant hotspot.
ResidueV2687
Hotspots ↗