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LYFE SCIENCES
Project: HERA
NM_000059.4:c.2259T>C
p.Phe753=  ·  BRCA2
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Classification rationale
1

The BRCA2 c.2259T>C (p.Phe753=) variant has been reported in ClinVar with only likely benign submissions.

clinvar ↗
2

This variant is absent from gnomAD v2.1 and present in gnomAD v4.1 at 3/1614118 alleles (AF 1.8586e-06; grpmax FAF 6.8e-07), which is far below ENIGMA BRCA2 BA1 and BS1 thresholds but does not satisfy absence from controls for PM2.

gnomad_v2 ↗ gnomad_v4 ↗ cspec ↗
3

SpliceAI predicts no meaningful splice effect for this synonymous change (max delta score 0.00), and codon 753 lies outside the ENIGMA-defined BRCA2 clinically important domains, supporting BP1_Strong and not supporting PP3 or PVS1.

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
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Rationale
Select a criterion to inspect its explanation.
Evidence used
  • —
Gaps remaining
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Rule
—
Publications
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Research and evidence
gnomAD v2.1 evidence
v2.1
gnomAD v4.1 evidence
v4.1
01
Population
gnomAD v2.1Absent from gnomAD v2.1.
gnomAD v4.1This variant is present in gnomAD v4.1 (AF= 1.8586e-06; MAF= 0.00019%, 3/1614118 alleles, homozygotes = 0) and has highest observed frequency in the European (non-Finnish) population (AF= 2.54237e-06; MAF= 0.00025%, 3/1180000 alleles, homozygotes = 0); grpmax FAF= 6.8e-07.
gnomAD v2 ↗ gnomAD v4 ↗
ClinVar evidence
02
ClinVar
This variant has been reported in ClinVar as Likely benign (4 clinical laboratories) and as Likely Benign (1 clinical laboratory). (ClinVarID = 516910)
ClinVar ↗
Functional evidence
03
Functional
OncoKB: Unknown Oncogenic Effect
OncoKB identified curated literature and non-variant-specific oncogenicity context for review; listed oncogenicity label: Unknown Oncogenic Effect.
OncoKB ↗
In silico evidence
04
In silico
SpliceAI predicts no significant splice impact for this variant (max delta score = 0.00).
SpliceAI ↗
COSMIC evidence
05
COSMIC
This variant does not lie in a statistically significant hotspot. This variant has not previously been reported in somatic cancers (COSMIC).
COSMIC ↗
Cancer hotspots evidence
06
Cancer hotspots Not found
This variant does not lie in a statistically significant hotspot.
ResidueF753
Hotspots ↗