rs1203095918

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4_StrongBP6

The NM_006231.4(POLE):​c.2865-3C>T variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000121 in 1,244,084 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000015 ( 0 hom., cov: 31)
Exomes 𝑓: 0.00012 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

POLE
NM_006231.4 splice_region, intron

Scores

2
Splicing: ADA: 0.001076
2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:1

Conservation

PhyloP100: 0.285

Publications

0 publications found
Variant links:
Genes affected
POLE (HGNC:9177): (DNA polymerase epsilon, catalytic subunit) This gene encodes the catalytic subunit of DNA polymerase epsilon. The enzyme is involved in DNA repair and chromosomal DNA replication. Mutations in this gene have been associated with colorectal cancer 12 and facial dysmorphism, immunodeficiency, livedo, and short stature. [provided by RefSeq, Sep 2013]
POLE Gene-Disease associations (from GenCC):
  • POLE-related polyposis and colorectal cancer syndrome
    Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
  • colorectal cancer, susceptibility to, 12
    Inheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp, Labcorp Genetics (formerly Invitae), Ambry Genetics
  • facial dysmorphism-immunodeficiency-livedo-short stature syndrome
    Inheritance: AR Classification: STRONG, MODERATE, SUPPORTIVE Submitted by: Orphanet, Labcorp Genetics (formerly Invitae), Ambry Genetics
  • intrauterine growth retardation, metaphyseal dysplasia, adrenal hypoplasia congenita, genital anomalies, and immunodeficiency
    Inheritance: AR Classification: STRONG Submitted by: G2P
  • IMAGe syndrome
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • Polymerase proofreading-related adenomatous polyposis
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.78).
BP6
Variant 12-132661167-G-A is Benign according to our data. Variant chr12-132661167-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 473560.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
POLENM_006231.4 linkc.2865-3C>T splice_region_variant, intron_variant Intron 24 of 48 ENST00000320574.10 NP_006222.2 Q07864

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
POLEENST00000320574.10 linkc.2865-3C>T splice_region_variant, intron_variant Intron 24 of 48 1 NM_006231.4 ENSP00000322570.5 Q07864

Frequencies

GnomAD3 genomes
AF:
0.0000149
AC:
2
AN:
134296
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.0000277
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000162
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.000121
AC:
150
AN:
1244084
Hom.:
0
Cov.:
33
AF XY:
0.000130
AC XY:
80
AN XY:
617310
show subpopulations
⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.
African (AFR)
AF:
0.000257
AC:
7
AN:
27262
American (AMR)
AF:
0.000354
AC:
11
AN:
31114
Ashkenazi Jewish (ASJ)
AF:
0.000330
AC:
7
AN:
21236
East Asian (EAS)
AF:
0.000165
AC:
6
AN:
36350
South Asian (SAS)
AF:
0.000447
AC:
31
AN:
69344
European-Finnish (FIN)
AF:
0.000605
AC:
25
AN:
41356
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
4604
European-Non Finnish (NFE)
AF:
0.0000645
AC:
62
AN:
961018
Other (OTH)
AF:
0.0000193
AC:
1
AN:
51800
⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.291
Heterozygous variant carriers
0
12
24
37
49
61
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
Data not reliable, filtered out with message: AS_VQSR
AF:
0.0000149
AC:
2
AN:
134322
Hom.:
0
Cov.:
31
AF XY:
0.00
AC XY:
0
AN XY:
64660
show subpopulations
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.
African (AFR)
AF:
0.0000276
AC:
1
AN:
36192
American (AMR)
AF:
0.00
AC:
0
AN:
13560
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3228
East Asian (EAS)
AF:
0.00
AC:
0
AN:
4634
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4156
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
7756
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
268
European-Non Finnish (NFE)
AF:
0.0000162
AC:
1
AN:
61902
Other (OTH)
AF:
0.00
AC:
0
AN:
1784
⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0.0000812204), which strongly suggests a high chance of mosaicism in these individuals.
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.300
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.00
Hom.:
0

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:2Benign:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Uncertain:1
Sep 26, 2019
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Nucleotide substitutions within the consensus splice site are a relatively common cause of aberrant splicing (PMID: 17576681, 9536098). Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant is not likely to affect RNA splicing, but this prediction has not been confirmed by published transcriptional studies. This variant has not been reported in the literature in individuals with POLE-related conditions. ClinVar contains an entry for this variant (Variation ID: 473560). This variant is not present in population databases (ExAC no frequency). This sequence change falls in intron 24 of the POLE gene. It does not directly change the encoded amino acid sequence of the POLE protein, but it affects a nucleotide within the consensus splice site of the intron. -

Hereditary cancer-predisposing syndrome Uncertain:1
May 10, 2025
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.2865-3C>T intronic variant results from a C to T substitution 3 nucleotides upstream from coding exon 25 in the POLE gene. This nucleotide position is not well conserved in available vertebrate species. In silico splice site analysis predicts that this alteration will not have any significant effect on splicing. Based on the available evidence, the clinical significance of this variant remains unclear. -

Colorectal cancer, susceptibility to, 12 Benign:1
May 28, 2019
Mendelics
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.78
CADD
Benign
1.8
DANN
Benign
0.70
PhyloP100
0.28
Mutation Taster
=97/3
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.0011
dbscSNV1_RF
Benign
0.10
SpliceAI score (max)
0.0
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs1203095918; hg19: chr12-133237753; COSMIC: COSV57684255; COSMIC: COSV57684255; API