12-132625001-G-T

Variant summary

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

The NM_006231.4(POLE):​c.6658-7C>A variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000175 in 1,611,554 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 0.000099 ( 0 hom., cov: 33)
Exomes 𝑓: 0.00018 ( 0 hom. )

Consequence

POLE
NM_006231.4 splice_region, intron

Scores

2
Splicing: ADA: 0.002604
2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:7O:1

Conservation

PhyloP100: 0.642

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=-0.72).
BP6
Variant 12-132625001-G-T is Benign according to our data. Variant chr12-132625001-G-T is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 220967.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_006231.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
POLE
NM_006231.4
MANE Select
c.6658-7C>A
splice_region intron
N/ANP_006222.2

Ensembl Transcripts

Selected
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
POLE
ENST00000320574.10
TSL:1 MANE Select
c.6658-7C>A
splice_region intron
N/AENSP00000322570.5
POLE
ENST00000535270.5
TSL:1
c.6577-7C>A
splice_region intron
N/AENSP00000445753.1
POLE
ENST00000537064.5
TSL:1
n.*6409-7C>A
splice_region intron
N/AENSP00000442578.1

Frequencies

GnomAD3 genomes
AF:
0.0000985
AC:
15
AN:
152246
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000241
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:
0.000206
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000682
AC:
17
AN:
249430
AF XY:
0.0000740
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.0000998
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000142
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000183
AC:
267
AN:
1459308
Hom.:
0
Cov.:
30
AF XY:
0.000168
AC XY:
122
AN XY:
726122
show subpopulations
African (AFR)
AF:
0.0000299
AC:
1
AN:
33408
American (AMR)
AF:
0.00
AC:
0
AN:
44698
Ashkenazi Jewish (ASJ)
AF:
0.0000383
AC:
1
AN:
26110
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39688
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86180
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
52952
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5758
European-Non Finnish (NFE)
AF:
0.000230
AC:
255
AN:
1110210
Other (OTH)
AF:
0.000166
AC:
10
AN:
60304
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.461
Heterozygous variant carriers
0
13
26
39
52
65
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
20
40
60
80
100
<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:
0.0000985
AC:
15
AN:
152246
Hom.:
0
Cov.:
33
AF XY:
0.0000672
AC XY:
5
AN XY:
74380
show subpopulations
African (AFR)
AF:
0.0000241
AC:
1
AN:
41468
American (AMR)
AF:
0.00
AC:
0
AN:
15288
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5198
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4836
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10630
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.000206
AC:
14
AN:
68040
Other (OTH)
AF:
0.00
AC:
0
AN:
2090
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.462
Heterozygous variant carriers
0
1
3
4
6
7
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:
0.000190
Hom.:
0
Bravo
AF:
0.0000945
EpiCase
AF:
0.000218
EpiControl
AF:
0.000296

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:7Other:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Uncertain:1Benign:1Other:1
GenomeConnect, ClinGen
Significance:not provided
Review Status:no classification provided
Collection Method:phenotyping only

GenomeConnect assertions are reported exactly as they appear on the patient-provided report from the testing laboratory. GenomeConnect staff make no attempt to reinterpret the clinical significance of the variant.

May 24, 2021
GeneDx
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

In-silico analysis is inconclusive as to whether the variant alters gene splicing. In the absence of RNA/functional studies, the actual effect of this sequence change is unknown.; Has not been previously published as pathogenic or benign to our knowledge

Jan 28, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

not specified Benign:3
Mar 04, 2025
Center for Genomic Medicine, Rigshospitalet, Copenhagen University Hospital
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Apr 28, 2025
Women's Health and Genetics/Laboratory Corporation of America, LabCorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Mar 29, 2017
Quest Diagnostics Nichols Institute San Juan Capistrano
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Colorectal cancer, susceptibility to, 12 Benign:1
Dec 15, 2016
Counsyl
Significance:Likely 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.

POLE-related disorder Benign:1
Jul 28, 2020
PreventionGenetics, part of Exact Sciences
Significance:Likely benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications).

Hereditary cancer-predisposing syndrome Benign:1
Dec 30, 2020
Sema4, Sema4
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:curation

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.72
CADD
Benign
6.5
DANN
Benign
0.85
PhyloP100
0.64
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
2.2
Mutation Taster
=100/0
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.0026
dbscSNV1_RF
Benign
0.086
SpliceAI score (max)
0.010
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: rs531482240; hg19: chr12-133201587; COSMIC: COSV57674913; COSMIC: COSV57674913; API