12-132679613-C-G

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_006231.4(POLE):ā€‹c.462G>Cā€‹(p.Arg154Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000685 in 1,460,706 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 Uncertain significance (ā˜…). Another nucleotide change resulting in same amino acid change has been previously reported as Likely benignin ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R154K) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 33)
Exomes š‘“: 6.8e-7 ( 0 hom. )

Consequence

POLE
NM_006231.4 missense

Scores

6
13

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.0760
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 Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.26618075).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
POLENM_006231.4 linkuse as main transcriptc.462G>C p.Arg154Ser missense_variant 6/49 ENST00000320574.10

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
POLEENST00000320574.10 linkuse as main transcriptc.462G>C p.Arg154Ser missense_variant 6/491 NM_006231.4 P1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251304
Hom.:
0
AF XY:
0.00000736
AC XY:
1
AN XY:
135808
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
6.85e-7
AC:
1
AN:
1460706
Hom.:
0
Cov.:
31
AF XY:
0.00000138
AC XY:
1
AN XY:
726388
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
33
ExAC
AF:
0.00000824
AC:
1

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingInvitaeMay 27, 2021In 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. Algorithms developed to predict the effect of missense changes on protein structure and function do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0"). This variant has not been reported in the literature in individuals with POLE-related disease. This variant is present in population databases (rs555774342, ExAC 0.009%). This sequence change replaces arginine with serine at codon 154 of the POLE protein (p.Arg154Ser). The arginine residue is weakly conserved and there is a moderate physicochemical difference between arginine and serine. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.43
BayesDel_addAF
Benign
-0.26
T
BayesDel_noAF
Benign
-0.53
CADD
Benign
12
DANN
Benign
0.97
DEOGEN2
Benign
0.28
T;.
Eigen
Benign
-0.76
Eigen_PC
Benign
-0.70
FATHMM_MKL
Uncertain
0.93
D
LIST_S2
Uncertain
0.92
D;D
M_CAP
Benign
0.013
T
MetaRNN
Benign
0.27
T;T
MetaSVM
Benign
-0.99
T
MutationAssessor
Benign
0.55
N;.
MutationTaster
Benign
1.0
N;N;N
PrimateAI
Uncertain
0.60
T
PROVEAN
Benign
-1.8
N;N
REVEL
Benign
0.10
Sift
Uncertain
0.0010
D;D
Sift4G
Uncertain
0.0030
D;D
Polyphen
0.0090
B;B
Vest4
0.27
MutPred
0.71
Gain of catalytic residue at N151 (P = 2e-04);.;
MVP
0.32
MPC
0.22
ClinPred
0.17
T
GERP RS
-1.9
RBP_binding_hub_radar
0.92
RBP_regulation_power_radar
2.6
Varity_R
0.61
gMVP
0.75

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: rs555774342; hg19: chr12-133256199; API