chr9-113409651-T-G

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2PP3_Moderate

The NM_017443.5(POLE3):​c.230A>C​(p.Glu77Ala) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000682 in 1,613,068 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic 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. E77V) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000039 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

POLE3
NM_017443.5 missense

Scores

5
9
5

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.29

Publications

2 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]

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.903

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
POLE3NM_017443.5 linkc.230A>C p.Glu77Ala missense_variant Exon 4 of 5 ENST00000374171.5 NP_059139.3 Q9NRF9A0A024R829
POLE3NM_001278255.1 linkc.230A>C p.Glu77Ala missense_variant Exon 4 of 5 NP_001265184.1 Q9NRF9A0A024R829
POLE3NM_001433719.1 linkc.230A>C p.Glu77Ala missense_variant Exon 3 of 4 NP_001420648.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
POLE3ENST00000374171.5 linkc.230A>C p.Glu77Ala missense_variant Exon 4 of 5 2 NM_017443.5 ENSP00000363286.4 Q9NRF9
POLE3ENST00000374169.7 linkc.230A>C p.Glu77Ala missense_variant Exon 3 of 4 1 ENSP00000363284.3 Q9NRF9
POLE3ENST00000475080.1 linkn.374A>C non_coding_transcript_exon_variant Exon 2 of 3 2
POLE3ENST00000479871.1 linkn.606A>C non_coding_transcript_exon_variant Exon 2 of 3 2

Frequencies

GnomAD3 genomes
AF:
0.0000394
AC:
6
AN:
152210
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000145
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
GnomAD2 exomes
AF:
0.00000398
AC:
1
AN:
251456
AF XY:
0.00
show subpopulations
Gnomad AFR exome
AF:
0.0000615
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000342
AC:
5
AN:
1460858
Hom.:
0
Cov.:
30
AF XY:
0.00000138
AC XY:
1
AN XY:
726852
show subpopulations
African (AFR)
AF:
0.0000897
AC:
3
AN:
33448
American (AMR)
AF:
0.0000224
AC:
1
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26130
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86226
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53386
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5720
European-Non Finnish (NFE)
AF:
9.00e-7
AC:
1
AN:
1111154
Other (OTH)
AF:
0.00
AC:
0
AN:
60370
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.485
Heterozygous variant carriers
0
0
1
1
2
2
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
AF:
0.0000394
AC:
6
AN:
152210
Hom.:
0
Cov.:
32
AF XY:
0.0000403
AC XY:
3
AN XY:
74372
show subpopulations
African (AFR)
AF:
0.000145
AC:
6
AN:
41452
American (AMR)
AF:
0.00
AC:
0
AN:
15282
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5194
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4828
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10620
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68040
Other (OTH)
AF:
0.00
AC:
0
AN:
2094
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.483
Heterozygous variant carriers
0
1
2
2
3
4
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome 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
Alfa
AF:
0.0000394
Hom.:
0
Bravo
AF:
0.0000227
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 specified Uncertain:1
Jul 31, 2024
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.230A>C (p.E77A) alteration is located in exon 4 (coding exon 3) of the POLE3 gene. This alteration results from a A to C substitution at nucleotide position 230, causing the glutamic acid (E) at amino acid position 77 to be replaced by an alanine (A). 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
Pathogenic
0.90
BayesDel_addAF
Benign
-0.022
T
BayesDel_noAF
Benign
-0.090
CADD
Pathogenic
30
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.75
D;D
Eigen
Uncertain
0.67
Eigen_PC
Uncertain
0.61
FATHMM_MKL
Uncertain
0.87
D
LIST_S2
Uncertain
0.95
.;D
M_CAP
Benign
0.068
D
MetaRNN
Pathogenic
0.90
D;D
MetaSVM
Benign
-0.83
T
MutationAssessor
Pathogenic
3.0
M;M
PhyloP100
7.3
PrimateAI
Pathogenic
0.79
T
PROVEAN
Pathogenic
-5.3
D;D
REVEL
Uncertain
0.48
Sift
Uncertain
0.0060
D;D
Sift4G
Uncertain
0.040
D;D
Polyphen
1.0
D;D
Vest4
0.90
MutPred
0.75
Loss of disorder (P = 0.0845);Loss of disorder (P = 0.0845);
MVP
0.39
MPC
0.93
ClinPred
0.98
D
GERP RS
4.2
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.56
gMVP
0.64
Mutation Taster
=91/9
polymorphism

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

Other links and lift over

dbSNP: rs375115032; hg19: chr9-116171931; API