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GeneBe

12-132677580-C-G

Variant summary

Our verdict is Benign. Variant got -15 ACMG points: 1P and 16B. PP3BP6_Very_StrongBS1BS2

The NM_006231.4(POLE):c.718G>C(p.Val240Leu) variant causes a missense, splice region change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000128 in 1,614,158 control chromosomes in the GnomAD database, including 6 homozygotes. In-silico tool predicts a benign outcome for this variant. 2/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Likely benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. V240M) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000053 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00014 ( 6 hom. )

Consequence

POLE
NM_006231.4 missense, splice_region

Scores

5
5
9
Splicing: ADA: 0.9659
2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: 7.91
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -15 ACMG points.

PP3
Splicing scoreres supports a deletorius effect: Scorers claiming Pathogenic: dbscSNV1_ADA, dbscSNV1_RF. No scorers claiming Uncertain. Scorers claiming Benign: max_spliceai.
BP6
Variant 12-132677580-C-G is Benign according to our data. Variant chr12-132677580-C-G is described in ClinVar as [Likely_benign]. Clinvar id is 473823.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
Variant frequency is greater than expected in population sas. gnomad4_exome allele frequency = 0.000135 (198/1461854) while in subpopulation SAS AF= 0.0022 (190/86250). AF 95% confidence interval is 0.00195. There are 6 homozygotes in gnomad4_exome. There are 136 alleles in male gnomad4_exome subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High Homozygotes in GnomAdExome at 2 AD,AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
POLENM_006231.4 linkuse as main transcriptc.718G>C p.Val240Leu missense_variant, splice_region_variant 7/49 ENST00000320574.10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
POLEENST00000320574.10 linkuse as main transcriptc.718G>C p.Val240Leu missense_variant, splice_region_variant 7/491 NM_006231.4 P1

Frequencies

GnomAD3 genomes
AF:
0.0000526
AC:
8
AN:
152186
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00166
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000306
AC:
77
AN:
251334
Hom.:
2
AF XY:
0.000405
AC XY:
55
AN XY:
135842
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00248
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.000163
GnomAD4 exome
AF:
0.000135
AC:
198
AN:
1461854
Hom.:
6
Cov.:
32
AF XY:
0.000187
AC XY:
136
AN XY:
727228
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00220
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.000132
GnomAD4 genome
AF:
0.0000525
AC:
8
AN:
152304
Hom.:
0
Cov.:
32
AF XY:
0.0000940
AC XY:
7
AN XY:
74474
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00166
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000225
Hom.:
0
ExAC
AF:
0.000305
AC:
37
Asia WGS
AF:
0.00115
AC:
4
AN:
3478

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:4
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Benign, criteria provided, single submitterclinical testingQuest Diagnostics Nichols Institute San Juan CapistranoJan 08, 2019- -
Likely benign, criteria provided, single submitterclinical testingInvitaeNov 24, 2023- -
not specified Benign:1
Likely benign, criteria provided, single submitterclinical testingGeneDxFeb 21, 2018This 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. -
Hereditary cancer-predisposing syndrome Benign:1
Benign, criteria provided, single submittercurationSema4, Sema4Oct 27, 2020- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.86
BayesDel_addAF
Benign
-0.36
T
BayesDel_noAF
Benign
-0.29
Cadd
Pathogenic
26
Dann
Uncertain
1.0
DEOGEN2
Benign
0.19
T;.
Eigen
Pathogenic
0.86
Eigen_PC
Pathogenic
0.81
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.96
D;D
M_CAP
Benign
0.023
T
MetaRNN
Benign
0.20
T;T
MetaSVM
Benign
-0.96
T
MutationAssessor
Pathogenic
3.0
M;.
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Uncertain
0.74
T
PROVEAN
Benign
-1.6
N;N
REVEL
Uncertain
0.30
Sift
Benign
0.051
T;T
Sift4G
Uncertain
0.052
T;T
Polyphen
0.99
D;D
Vest4
0.87
MutPred
0.72
Gain of catalytic residue at K237 (P = 0);.;
MVP
0.53
MPC
0.67
ClinPred
0.27
T
GERP RS
5.8
Varity_R
0.13
gMVP
0.71

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Pathogenic
0.97
dbscSNV1_RF
Pathogenic
0.74
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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs371882716; hg19: chr12-133254166; COSMIC: COSV57685249; COSMIC: COSV57685249; API