9-113408875-T-C

Variant names:

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_017443.5(POLE3):c.380A>G(p.Asn127Ser) variant causes a missense change. The variant allele was found at a frequency of 0.00000186 in 1,612,456 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

POLE3
NM_017443.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.34

Publications

0 publications found

Variant links:

Genes affected

POLE3 (HGNC:13546): (DNA polymerase epsilon 3, accessory subunit) POLE3 is a histone-fold protein that interacts with other histone-fold proteins to bind DNA in a sequence-independent manner. These histone-fold protein dimers combine within larger enzymatic complexes for DNA transcription, replication, and packaging.[supplied by OMIM, Apr 2004]

POLE3 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.0993889).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
POLE3	NM_017443.5 link	c.380A>G	p.Asn127Ser	missense_variant	Exon 5 of 5	ENST00000374171.5	NP_059139.3	Q9NRF9A0A024R829
POLE3	NM_001278255.1 link	c.380A>G	p.Asn127Ser	missense_variant	Exon 5 of 5		NP_001265184.1	Q9NRF9A0A024R829
POLE3	NM_001433719.1 link	c.380A>G	p.Asn127Ser	missense_variant	Exon 4 of 4		NP_001420648.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
POLE3	ENST00000374171.5 link	c.380A>G	p.Asn127Ser	missense_variant	Exon 5 of 5	2	NM_017443.5	ENSP00000363286.4	Q9NRF9
POLE3	ENST00000374169.7 link	c.380A>G	p.Asn127Ser	missense_variant	Exon 4 of 4	1		ENSP00000363284.3	Q9NRF9
POLE3	ENST00000479871.1 link	n.756A>G		non_coding_transcript_exon_variant	Exon 3 of 3	2
POLE3	ENST00000475080.1 link	n.*69A>G		downstream_gene_variant		2

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152200

Hom.:

Cov.:

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:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.00000404

AC:

AN:

247242

AF XY:

0.00000748

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:

0.00000899

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1460256

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

726364

show subpopulations

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

33454

American (AMR)

AF:

0.00

AC:

AN:

44476

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26102

East Asian (EAS)

AF:

0.00

AC:

AN:

39222

South Asian (SAS)

AF:

0.00

AC:

AN:

86106

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53382

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00000180

AC:

AN:

1111390

Other (OTH)

AF:

0.00

AC:

AN:

60356

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.000000), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.400

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152200

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74350

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41466

American (AMR)

AF:

0.00

AC:

AN:

15280

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5166

South Asian (SAS)

AF:

0.00

AC:

AN:

4836

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10616

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

68044

Other (OTH)

AF:

0.00

AC:

AN:

2092

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.575

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jun 03, 2025

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.380A>G (p.N127S) alteration is located in exon 5 (coding exon 4) of the POLE3 gene. This alteration results from a A to G substitution at nucleotide position 380, causing the asparagine (N) at amino acid position 127 to be replaced by a serine (S). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.064

BayesDel_addAF

Benign

-0.26

BayesDel_noAF

Benign

-0.61

CADD

Benign

(source)

DANN

Benign

0.80

DEOGEN2

Benign

0.17

T;T

Eigen

Benign

-0.16

Eigen_PC

Benign

-0.074

FATHMM_MKL

Uncertain

0.97

LIST_S2

Benign

0.76

.;T

M_CAP

Benign

0.0053

MetaRNN

Benign

0.099

T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.8

L;L

PhyloP100

4.3

PrimateAI

Benign

0.48

PROVEAN

Benign

-0.61

N;N

REVEL

Benign

0.093

Sift

Benign

0.61

T;T

Sift4G

Benign

0.64

T;T

Polyphen

0.28

B;B

Vest4

0.17

MutPred

0.23

Gain of phosphorylation at N127 (P = 0);Gain of phosphorylation at N127 (P = 0);

MVP

0.29

MPC

0.21

ClinPred

0.17

GERP RS

4.6

RBP_binding_hub_radar

1.1

RBP_regulation_power_radar

2.8

Varity_R

0.14

gMVP

0.059

Mutation Taster

=93/7

polymorphism

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

9-113408875-T-C

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over