rs1355767159

Variant summary

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

The ENST00000320574.10(POLE):​c.34G>A​(p.Asp12Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000665 in 1,503,572 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 (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. D12G) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000052 ( 0 hom. )

Consequence

POLE
ENST00000320574.10 missense

Scores

1
2
16

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:5

Conservation

PhyloP100: 1.16
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=0.09176165).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
POLENM_006231.4 linkuse as main transcriptc.34G>A p.Asp12Asn missense_variant 1/49 ENST00000320574.10 NP_006222.2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
POLEENST00000320574.10 linkuse as main transcriptc.34G>A p.Asp12Asn missense_variant 1/491 NM_006231.4 ENSP00000322570 P1

Frequencies

GnomAD3 genomes
AF:
0.0000198
AC:
3
AN:
151692
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000725
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.00000518
AC:
7
AN:
1351880
Hom.:
0
Cov.:
32
AF XY:
0.00000450
AC XY:
3
AN XY:
667174
show subpopulations
Gnomad4 AFR exome
AF:
0.000174
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000132
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
9.43e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000198
AC:
3
AN:
151692
Hom.:
0
Cov.:
33
AF XY:
0.0000135
AC XY:
1
AN XY:
74064
show subpopulations
Gnomad4 AFR
AF:
0.0000725
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:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000712
Hom.:
0
Bravo
AF:
0.0000453

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:5
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Uncertain:2
Uncertain significance, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpOct 27, 2023This sequence change replaces aspartic acid, which is acidic and polar, with asparagine, which is neutral and polar, at codon 12 of the POLE protein (p.Asp12Asn). The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD database. 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: 540767). 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. -
Uncertain significance, criteria provided, single submitterclinical testingGeneDxAug 28, 2019Not observed at a significant frequency in large population cohorts (Lek 2016); In silico analysis, which includes protein predictors and evolutionary conservation, supports that this variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -
POLE-related disorder Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact SciencesJul 19, 2023The POLE c.34G>A variant is predicted to result in the amino acid substitution p.Asp12Asn. To our knowledge, this variant has not been reported in the literature. This variant is reported in 0.012% of alleles in individuals of African descent in gnomAD (http://gnomad.broadinstitute.org/variant/12-133263868-C-T). In ClinVar, this variant is currently listed as 'uncertain significance' by several outside laboratories (https://preview.ncbi.nlm.nih.gov/clinvar/variation/540767/). At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -
Hereditary cancer-predisposing syndrome Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsMar 25, 2024The c.34G>A (p.D12N) alteration is located in exon 1 (coding exon 1) of the POLE gene. This alteration results from a G to A substitution at nucleotide position 34, causing the aspartic acid (D) at amino acid position 12 to be replaced by an asparagine (N). Based on insufficient or conflicting evidence, 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
Uncertain significance, criteria provided, single submitterclinical testingFulgent Genetics, Fulgent GeneticsMar 12, 2022- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.12
BayesDel_addAF
Benign
-0.32
T
BayesDel_noAF
Benign
-0.69
CADD
Benign
18
DANN
Uncertain
0.99
DEOGEN2
Benign
0.040
T;.
Eigen
Benign
-0.69
Eigen_PC
Benign
-0.61
FATHMM_MKL
Benign
0.090
N
LIST_S2
Benign
0.66
T;T
M_CAP
Uncertain
0.16
D
MetaRNN
Benign
0.092
T;T
MetaSVM
Benign
-0.90
T
MutationAssessor
Benign
1.1
L;.
MutationTaster
Benign
1.0
D;N;N
PrimateAI
Pathogenic
0.84
D
PROVEAN
Benign
-1.2
N;N
REVEL
Benign
0.059
Sift
Benign
0.46
T;T
Sift4G
Benign
0.47
T;T
Polyphen
0.037
B;B
Vest4
0.17
MutPred
0.23
Gain of catalytic residue at P13 (P = 0.0102);Gain of catalytic residue at P13 (P = 0.0102);
MVP
0.29
MPC
0.19
ClinPred
0.20
T
GERP RS
3.7
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Varity_R
0.11
gMVP
0.39

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: rs1355767159; hg19: chr12-133263868; API