12-132632412-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.6233G>A​(p.Arg2078Gln) variant causes a missense change. The variant allele was found at a frequency of 0.0000513 in 1,461,570 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 0.000051 ( 0 hom. )

Consequence

POLE
NM_006231.4 missense

Scores

1
2
16

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 4.10
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=0.1411837).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
POLENM_006231.4 linkuse as main transcriptc.6233G>A p.Arg2078Gln missense_variant 45/49 ENST00000320574.10 NP_006222.2 Q07864
POLEXM_011534795.4 linkuse as main transcriptc.6233G>A p.Arg2078Gln missense_variant 45/48 XP_011533097.1
POLEXM_011534797.4 linkuse as main transcriptc.5312G>A p.Arg1771Gln missense_variant 37/40 XP_011533099.1
POLEXM_011534802.4 linkuse as main transcriptc.3221G>A p.Arg1074Gln missense_variant 21/24 XP_011533104.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
POLEENST00000320574.10 linkuse as main transcriptc.6233G>A p.Arg2078Gln missense_variant 45/491 NM_006231.4 ENSP00000322570.5 Q07864

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD3 exomes
AF:
0.0000159
AC:
4
AN:
251474
Hom.:
0
AF XY:
0.0000221
AC XY:
3
AN XY:
135908
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000289
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000109
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000879
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000513
AC:
75
AN:
1461570
Hom.:
0
Cov.:
32
AF XY:
0.0000591
AC XY:
43
AN XY:
727134
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000252
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000621
Gnomad4 OTH exome
AF:
0.0000497
GnomAD4 genome
Cov.:
32
Alfa
AF:
0.0000434
Hom.:
0
Bravo
AF:
0.0000113
ExAC
AF:
0.0000165
AC:
2
EpiCase
AF:
0.000109
EpiControl
AF:
0.00

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Uncertain:2
Uncertain significance, criteria provided, single submitterclinical testingGeneDxJun 13, 2022Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -
Uncertain significance, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpDec 05, 2023This sequence change replaces arginine, which is basic and polar, with glutamine, which is neutral and polar, at codon 2078 of the POLE protein (p.Arg2078Gln). This variant is present in population databases (rs745721448, gnomAD 0.006%). This missense change has been observed in individual(s) with gastrointestinal cancer (PMID: 34326862). ClinVar contains an entry for this variant (Variation ID: 473787). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be tolerated. 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. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.089
BayesDel_addAF
Benign
-0.16
T
BayesDel_noAF
Benign
-0.30
CADD
Uncertain
23
DANN
Uncertain
1.0
DEOGEN2
Benign
0.076
T;.
Eigen
Benign
-0.038
Eigen_PC
Benign
0.12
FATHMM_MKL
Pathogenic
0.97
D
LIST_S2
Uncertain
0.90
D;D
M_CAP
Benign
0.0072
T
MetaRNN
Benign
0.14
T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
1.9
L;.
PrimateAI
Benign
0.36
T
PROVEAN
Benign
-1.4
N;N
REVEL
Benign
0.079
Sift
Benign
0.35
T;T
Sift4G
Benign
0.42
T;T
Polyphen
0.068
B;.
Vest4
0.20
MutPred
0.41
Gain of catalytic residue at S2077 (P = 0.0073);.;
MVP
0.35
MPC
0.22
ClinPred
0.54
D
GERP RS
5.3
Varity_R
0.12
gMVP
0.42

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: rs745721448; hg19: chr12-133208998; COSMIC: COSV105207607; COSMIC: COSV105207607; API