rs34047482

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_006231.4(POLE):​c.91G>T​(p.Ala31Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0197 in 1,614,170 control chromosomes in the GnomAD database, including 421 homozygotes. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A31V) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.013 ( 26 hom., cov: 32)
Exomes 𝑓: 0.020 ( 395 hom. )

Consequence

POLE
NM_006231.4 missense

Scores

1
1
16

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:19

Conservation

PhyloP100: 7.41

Publications

14 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: Benign. The variant received -20 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.0056500733).
BP6
Variant 12-132681251-C-A is Benign according to our data. Variant chr12-132681251-C-A is described in CliVar as Benign. Clinvar id is 221182.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr12-132681251-C-A is described in CliVar as Benign. Clinvar id is 221182.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr12-132681251-C-A is described in CliVar as Benign. Clinvar id is 221182.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr12-132681251-C-A is described in CliVar as Benign. Clinvar id is 221182.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
Variant frequency is greater than expected in population nfe. GnomAd4 allele frequency = 0.0131 (1997/152322) while in subpopulation NFE AF = 0.0211 (1438/68022). AF 95% confidence interval is 0.0202. There are 26 homozygotes in GnomAd4. There are 925 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.
BS2
High Homozygotes in GnomAd4 at 26 AR,AD gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
POLENM_006231.4 linkc.91G>T p.Ala31Ser missense_variant Exon 2 of 49 ENST00000320574.10 NP_006222.2 Q07864

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
POLEENST00000320574.10 linkc.91G>T p.Ala31Ser missense_variant Exon 2 of 49 1 NM_006231.4 ENSP00000322570.5 Q07864

Frequencies

GnomAD3 genomes
AF:
0.0131
AC:
1998
AN:
152204
Hom.:
26
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00453
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0136
Gnomad ASJ
AF:
0.00115
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.0104
Gnomad FIN
AF:
0.00829
Gnomad MID
AF:
0.00633
Gnomad NFE
AF:
0.0211
Gnomad OTH
AF:
0.00956
GnomAD2 exomes
AF:
0.0124
AC:
3113
AN:
251414
AF XY:
0.0129
show subpopulations
Gnomad AFR exome
AF:
0.00338
Gnomad AMR exome
AF:
0.00610
Gnomad ASJ exome
AF:
0.00129
Gnomad EAS exome
AF:
0.0000544
Gnomad FIN exome
AF:
0.00748
Gnomad NFE exome
AF:
0.0201
Gnomad OTH exome
AF:
0.0145
GnomAD4 exome
AF:
0.0204
AC:
29851
AN:
1461848
Hom.:
395
Cov.:
31
AF XY:
0.0202
AC XY:
14680
AN XY:
727224
show subpopulations
African (AFR)
AF:
0.00332
AC:
111
AN:
33478
American (AMR)
AF:
0.00664
AC:
297
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00145
AC:
38
AN:
26134
East Asian (EAS)
AF:
0.0000504
AC:
2
AN:
39698
South Asian (SAS)
AF:
0.0102
AC:
882
AN:
86258
European-Finnish (FIN)
AF:
0.00794
AC:
424
AN:
53402
Middle Eastern (MID)
AF:
0.00485
AC:
28
AN:
5768
European-Non Finnish (NFE)
AF:
0.0244
AC:
27129
AN:
1111992
Other (OTH)
AF:
0.0156
AC:
940
AN:
60394
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.484
Heterozygous variant carriers
0
1512
3025
4537
6050
7562
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
1034
2068
3102
4136
5170
<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
AF:
0.0131
AC:
1997
AN:
152322
Hom.:
26
Cov.:
32
AF XY:
0.0124
AC XY:
925
AN XY:
74496
show subpopulations
African (AFR)
AF:
0.00452
AC:
188
AN:
41578
American (AMR)
AF:
0.0136
AC:
208
AN:
15308
Ashkenazi Jewish (ASJ)
AF:
0.00115
AC:
4
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5182
South Asian (SAS)
AF:
0.0104
AC:
50
AN:
4826
European-Finnish (FIN)
AF:
0.00829
AC:
88
AN:
10616
Middle Eastern (MID)
AF:
0.00340
AC:
1
AN:
294
European-Non Finnish (NFE)
AF:
0.0211
AC:
1438
AN:
68022
Other (OTH)
AF:
0.00946
AC:
20
AN:
2114
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.500
Heterozygous variant carriers
0
110
220
329
439
549
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
28
56
84
112
140
<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:
0.0187
Hom.:
113
Bravo
AF:
0.0134
TwinsUK
AF:
0.0245
AC:
91
ALSPAC
AF:
0.0236
AC:
91
ESP6500AA
AF:
0.00431
AC:
19
ESP6500EA
AF:
0.0220
AC:
189
ExAC
AF:
0.0122
AC:
1485
Asia WGS
AF:
0.00635
AC:
23
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:19
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:7
Nov 22, 2016
PreventionGenetics, part of Exact Sciences
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

-
Joint Genome Diagnostic Labs from Nijmegen and Maastricht, Radboudumc and MUMC+
Significance:Benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

Sep 02, 2016
Quest Diagnostics Nichols Institute San Juan Capistrano
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Mar 04, 2025
Center for Genomic Medicine, Rigshospitalet, Copenhagen University Hospital
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Nov 10, 2015
GeneDx
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

-
Genome Diagnostics Laboratory, Amsterdam University Medical Center
Significance:Benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

-
Clinical Genetics, Academic Medical Center
Significance:Benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

not provided Benign:6
-
Laboratory of Diagnostic Genome Analysis, Leiden University Medical Center (LUMC)
Significance:Likely benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

-
Genome Diagnostics Laboratory, University Medical Center Utrecht
Significance:Likely benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

Oct 23, 2023
ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Feb 04, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

May 24, 2016
Women's Health and Genetics/Laboratory Corporation of America, LabCorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Variant summary: The POLE c.91G>T (p.Ala31Ser) variant involves the alteration of a conserved nucleotide. 3/5 in silico tools predict a benign outcome for this variant. This variant was found in 1485/121338 control chromosomes (20 homozygotes) at a frequency of 0.0122385, which is approximately 862 times the estimated maximal expected allele frequency of a pathogenic POLE variant (0.0000142), suggesting this variant is likely a benign polymorphism. In addition, one clinical diagnostic laboratory classified this variant as benign. Taken together, this variant is classified as benign. -

-
Breakthrough Genomics, Breakthrough Genomics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:not provided

- -

Hereditary cancer-predisposing syndrome Benign:3
May 19, 2015
Ambry Genetics
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This alteration is classified as benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Jan 15, 2025
Institute for Biomarker Research, Medical Diagnostic Laboratories, L.L.C.
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The missense variant NM_006231.4(POLE):c.91G>T (p.Ala31Ser) has been reported to ClinVar as Benign with a status of (2 stars) criteria provided, multiple submitters, no conflicts (Variation ID 221182 as of 2025-01-02).There is a moderate physicochemical difference between alanine and serine.The p.Ala31Ser variant is not predicted to introduce a novel splice site by any splice site algorithm. The alanine residue at codon 31 of POLE is not conserved in all mammalian species, with 3 of the 57 mammals with alignments containing alternative residues. For these reasons, this variant has been classified as Benign -

Jan 30, 2018
True Health Diagnostics
Significance:Likely benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

Colorectal cancer, susceptibility to, 12 Benign:2
Aug 23, 2016
Counsyl
Significance:Benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

This submission and the accompanying classification are no longer maintained by the submitter. For more information on current observations and classification, please contact variantquestions@myriad.com. -

Jul 07, 2023
KCCC/NGS Laboratory, Kuwait Cancer Control Center
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Carcinoma of colon Benign:1
-
Department of Pathology and Laboratory Medicine, Sinai Health System
Significance:Likely benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

The POLE p.Ala31Ser variant was not identified in the literature nor was it identified in the Cosmic, databases. The variant was identified in dbSNP (ID: rs34047482) as With Benign allele, ClinVar (classified as benign by Invitae, Counsyl, GeneDx, Ambry Genetics), Clinvitae (classified as benign by Invitae, ClinVar), MutDB, databases. The variant was identified in control databases in 3418 of 277182 chromosomes (47 homozygous) at a frequency of 0.012 increasing the likelihood this could be a low frequency benign variant (Genome Aggregation Database Feb 27, 2017). Breakdown of the observations by population include African in 85 of 24036 chromosomes (freq: 0.004), Other in 87 of 6464 chromosomes (freq: 0.014), Latino in 214 of 34418 chromosomes (freq: 0.006), EuropeanNon-Finnish in 2527 of 126668 chromosomes (freq: 0.02), AshkenaziJewish in 13 of 10150 chromosomes (freq: 0.0013), EastAsian in 1 of 18870 chromosomes (freq: 0.00005), EuropeanFinnish in 196 of 25794 chromosomes (freq: 0.008), and SouthAsian in 295 of 30782 chromosomes (freq: 0.01). The p.Ala31 residue is conserved in mammals but not in more distantly related organisms, however four out of five computational analyses (PolyPhen-2, SIFT, AlignGVGD, BLOSUM, MutationTaster) do not suggest a high likelihood of impact to the protein; this information is not predictive enough to rule out pathogenicity. The variant occurs outside of the splicing consensus sequence and 2 of 5 in silico or computational prediction software programs (SpliceSiteFinder, MaxEntScan, NNSPLICE, GeneSplicer, HumanSpliceFinder) predict a greater than 10% difference in splicing; this is not very predictive of pathogenicity. In addition, GeneDx classified the variant as benign based on following criteria: “it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease”. In summary, based on the above information, the clinical significance of this variant cannot be determined with certainty at this time although we would lean towards a more benign role for this variant. This variant is classified as likely benign. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.13
BayesDel_addAF
Benign
-0.47
T
BayesDel_noAF
Benign
-0.42
CADD
Benign
14
DANN
Benign
0.89
DEOGEN2
Benign
0.039
T;.
Eigen
Benign
-0.30
Eigen_PC
Benign
-0.23
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Benign
0.70
T;T
MetaRNN
Benign
0.0057
T;T
MetaSVM
Benign
-0.91
T
MutationAssessor
Benign
1.4
L;.
PhyloP100
7.4
PrimateAI
Uncertain
0.68
T
PROVEAN
Benign
-0.16
N;N
REVEL
Benign
0.20
Sift
Benign
0.44
T;T
Sift4G
Benign
0.69
T;T
Polyphen
0.0040
B;B
Vest4
0.39
MPC
0.18
ClinPred
0.043
T
GERP RS
4.8
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.047
gMVP
0.37
Mutation Taster
=96/4
polymorphism (auto)

Splicing

Name
Calibrated prediction
Score
Prediction
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: rs34047482; hg19: chr12-133257837; API