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LYFE SCIENCES
Project: HERA
NM_002691.4:c.2718-24A>C
p.?  ·  POLD1
ACMG/AMP
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Legacy Engine
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Classification rationale
1

NM_002691.4:c.2718-24A>C is an intronic variant in POLD1 located 24 bases upstream of exon 21, outside the canonical splice consensus region.

2

SpliceAI predicts no significant splicing impact (max delta score = 0.00), indicating this variant is unlikely to alter normal splicing (BP4).

spliceai ↗
3

The variant is present in gnomAD v2.1 at an allele frequency of 0.458% (358/78,106 alleles) and in v4.1 at 0.494% (2,810/568,564 alleles), far exceeding the maximum credible population frequency for a highly penetrant rare dominant disorder such as polymerase proofreading-associated polyposis (BS1).

gnomad_v2 ↗ gnomad_v4 ↗
4

The variant is absent from ClinVar with no disease associations or submissions, and no publications were identified that specifically mention this variant.

clinvar ↗
5

Based on the generic ACMG/AMP 2015 classification framework (PMID:25741868), the combination of one strong benign criterion (BS1) and one supporting benign criterion (BP4) supports a classification of Likely Benign.

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
gnomAD v2.1 evidence
v2.1
gnomAD v4.1 evidence
v4.1
01
Population
gnomAD v2.1This variant is present in gnomAD v2.1 (AF= 0.00458351; MAF= 0.45835%, 358/78106 alleles, homozygotes = 0) and has highest observed frequency in the European (Finnish) population (AF= 0.0155039; MAF= 1.55039%, 96/6192 alleles, homozygotes = 0); grpmax FAF= 0.0653219.
gnomAD v4.1This variant is present in gnomAD v4.1 (AF= 0.00494228; MAF= 0.49423%, 2810/568564 alleles, homozygotes = 0) and has highest observed frequency in the Amish population (AF= 0.189655; MAF= 18.96552%, 11/58 alleles, homozygotes = 0); grpmax FAF= 0.0204173.
gnomAD CanadaAvailable
ClinVar evidence
02
ClinVar
This variant is absent from ClinVar.
03
Functional
No functional summary recorded.
In silico evidence
04
In silico
SpliceAI predicts no significant splice impact for this variant (max delta score = 0.00).
COSMIC evidence
05
COSMIC
This variant has not previously been reported in somatic cancers (COSMIC).
06
Cancer hotspots
No cancer hotspot summary recorded.