NM_006231.4:c.6460C>T

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_006231.4(POLE):​c.6460C>T​(p.Pro2154Ser) variant causes a missense change. The variant allele was found at a frequency of 0.0000123 in 1,461,208 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. P2154R) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.000012 ( 0 hom. )

Consequence

POLE
NM_006231.4 missense

Scores

6
13

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 4.00

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 -2 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.23766902).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
POLENM_006231.4 linkc.6460C>T p.Pro2154Ser missense_variant Exon 46 of 49 ENST00000320574.10 NP_006222.2 Q07864
POLEXM_011534795.4 linkc.6460C>T p.Pro2154Ser missense_variant Exon 46 of 48 XP_011533097.1
POLEXM_011534797.4 linkc.5539C>T p.Pro1847Ser missense_variant Exon 38 of 40 XP_011533099.1
POLEXM_011534802.4 linkc.3448C>T p.Pro1150Ser missense_variant Exon 22 of 24 XP_011533104.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
POLEENST00000320574.10 linkc.6460C>T p.Pro2154Ser missense_variant Exon 46 of 49 1 NM_006231.4 ENSP00000322570.5 Q07864

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD2 exomes
AF:
0.00000800
AC:
2
AN:
249988
AF XY:
0.00000739
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 FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000177
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000123
AC:
18
AN:
1461208
Hom.:
0
Cov.:
32
AF XY:
0.00000963
AC XY:
7
AN XY:
726864
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33462
American (AMR)
AF:
0.00
AC:
0
AN:
44660
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26114
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39688
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86178
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53184
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5744
European-Non Finnish (NFE)
AF:
0.0000162
AC:
18
AN:
1111824
Other (OTH)
AF:
0.00
AC:
0
AN:
60354
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.469
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

Exome 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
GnomAD4 genome
Cov.:
33
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.0000189
ExAC
AF:
0.0000165
AC:
2

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Uncertain:1
Nov 27, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces proline, which is neutral and non-polar, with serine, which is neutral and polar, at codon 2154 of the POLE protein (p.Pro2154Ser). This variant is present in population databases (rs778456846, gnomAD 0.002%). 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: 574369). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) 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. -

Hereditary cancer-predisposing syndrome Uncertain:1
May 25, 2024
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The p.P2154S variant (also known as c.6460C>T), located in coding exon 46 of the POLE gene, results from a C to T substitution at nucleotide position 6460. The proline at codon 2154 is replaced by serine, an amino acid with similar properties. This amino acid position is conserved. In addition, this alteration is predicted to be tolerated by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -

Colorectal cancer, susceptibility to, 12;C3554576:Facial dysmorphism-immunodeficiency-livedo-short stature syndrome;C5193036:Intrauterine growth retardation, metaphyseal dysplasia, adrenal hypoplasia congenita, genital anomalies, and immunodeficiency Uncertain:1
Nov 15, 2022
Department of Pathology and Laboratory Medicine, Sinai Health System
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.11
BayesDel_addAF
Benign
-0.13
T
BayesDel_noAF
Benign
-0.40
CADD
Benign
19
DANN
Uncertain
0.99
DEOGEN2
Uncertain
0.57
D;.
Eigen
Benign
-0.14
Eigen_PC
Benign
-0.039
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Uncertain
0.92
D;D
M_CAP
Benign
0.0068
T
MetaRNN
Benign
0.24
T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Benign
2.0
M;.
PhyloP100
4.0
PrimateAI
Uncertain
0.53
T
PROVEAN
Uncertain
-4.0
D;D
REVEL
Benign
0.10
Sift
Benign
0.21
T;T
Sift4G
Benign
0.30
T;T
Polyphen
0.0020
B;.
Vest4
0.17
MutPred
0.56
Gain of catalytic residue at E2155 (P = 8e-04);.;
MVP
0.33
MPC
0.19
ClinPred
0.60
D
GERP RS
2.9
Varity_R
0.37
gMVP
0.50
Mutation Taster
=63/37
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
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: rs778456846; hg19: chr12-133202774; API