chr12-132679614-C-T

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_006231.4(POLE):​c.461G>A​(p.Arg154Lys) variant causes a missense change. The variant allele was found at a frequency of 0.000112 in 1,612,932 control chromosomes in the GnomAD database, with no homozygous occurrence. 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 Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 33)
Exomes 𝑓: 0.00012 ( 0 hom. )

Consequence

POLE
NM_006231.4 missense

Scores

1
18

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:4B:1

Conservation

PhyloP100: 4.18
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.094796896).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
POLENM_006231.4 linkuse as main transcriptc.461G>A p.Arg154Lys missense_variant 6/49 ENST00000320574.10 NP_006222.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
POLEENST00000320574.10 linkuse as main transcriptc.461G>A p.Arg154Lys missense_variant 6/491 NM_006231.4 ENSP00000322570 P1

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152218
Hom.:
0
Cov.:
33
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:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000441
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.0000318
AC:
8
AN:
251316
Hom.:
0
AF XY:
0.0000147
AC XY:
2
AN XY:
135816
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000289
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000616
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000120
AC:
176
AN:
1460714
Hom.:
0
Cov.:
31
AF XY:
0.000102
AC XY:
74
AN XY:
726378
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:
0.00
Gnomad4 FIN exome
AF:
0.0000187
Gnomad4 NFE exome
AF:
0.000155
Gnomad4 OTH exome
AF:
0.0000497
GnomAD4 genome
AF:
0.0000263
AC:
4
AN:
152218
Hom.:
0
Cov.:
33
AF XY:
0.0000269
AC XY:
2
AN XY:
74370
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:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000441
Gnomad4 OTH
AF:
0.000478
Alfa
AF:
0.0000893
Hom.:
0
Bravo
AF:
0.0000416
TwinsUK
AF:
0.000270
AC:
1
ALSPAC
AF:
0.000259
AC:
1
ExAC
AF:
0.0000165
AC:
2
EpiCase
AF:
0.00
EpiControl
AF:
0.000178

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:4Benign:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Uncertain:3
Uncertain significance, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 13, 2024This sequence change replaces arginine, which is basic and polar, with lysine, which is basic and polar, at codon 154 of the POLE protein (p.Arg154Lys). This variant is present in population databases (rs769882912, gnomAD 0.006%). This variant has not been reported in the literature in individuals affected with POLE-related conditions. ClinVar contains an entry for this variant (Variation ID: 246050). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt POLE protein function with a negative predictive value of 80%. 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. -
Uncertain significance, criteria provided, single submitterclinical testingGeneDxJun 17, 2024In silico analysis indicates that this missense variant does not alter protein structure/function; Observed in individuals with ovarian cancer and in a control population (PMID: 32546565); This variant is associated with the following publications: (PMID: 32546565) -
Uncertain significance, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact SciencesOct 10, 2017- -
not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingQuest Diagnostics Nichols Institute San Juan CapistranoJun 01, 2017- -
Hereditary cancer-predisposing syndrome Benign:1
Likely benign, criteria provided, single submitterclinical testingAmbry GeneticsJun 28, 2015This alteration is classified as likely 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. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.053
BayesDel_addAF
Benign
-0.39
T
BayesDel_noAF
Benign
-0.62
CADD
Benign
4.0
DANN
Benign
0.33
DEOGEN2
Benign
0.072
T;.
Eigen
Benign
-0.97
Eigen_PC
Benign
-0.65
FATHMM_MKL
Benign
0.20
N
LIST_S2
Benign
0.47
T;T
M_CAP
Benign
0.0067
T
MetaRNN
Benign
0.095
T;T
MetaSVM
Benign
-0.97
T
MutationAssessor
Benign
-2.2
N;.
MutationTaster
Benign
0.88
N;N;N
PrimateAI
Uncertain
0.61
T
PROVEAN
Benign
2.5
N;N
REVEL
Benign
0.089
Sift
Benign
1.0
T;T
Sift4G
Benign
1.0
T;T
Polyphen
0.0
B;B
Vest4
0.11
MutPred
0.57
Gain of catalytic residue at H158 (P = 0.0212);.;
MVP
0.33
MPC
0.20
ClinPred
0.020
T
GERP RS
4.9
Varity_R
0.072
gMVP
0.69

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

LitVar

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

Other links and lift over

dbSNP: rs769882912; hg19: chr12-133256200; API