chr12-132668423-C-A

Variant names:

Variant summary

Our verdict is Benign. The variant received -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The NM_006231.4(POLE):c.2106G>T(p.Gly702Gly) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000356 in 1,612,620 control chromosomes in the GnomAD database, including 3 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Synonymous variant affecting the same amino acid position (i.e. G702G) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0018 ( 2 hom., cov: 32)

Exomes 𝑓: 0.00020 ( 1 hom. )

Consequence

POLE
NM_006231.4 synonymous

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:11

Conservation

PhyloP100: -0.248

Publications

1 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: Labcorp Genetics (formerly Invitae), Genomics England PanelApp, 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

POLE links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -21 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.5).

BP6

Variant 12-132668423-C-A is Benign according to our data. Variant chr12-132668423-C-A is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 240425.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BP7

Synonymous conserved (PhyloP=-0.248 with no splicing effect.

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00182 (277/152334) while in subpopulation AFR AF = 0.00642 (267/41584). AF 95% confidence interval is 0.00579. There are 2 homozygotes in GnomAd4. There are 124 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

BS2

High Homozygotes in GnomAd4 at 2 AR,AD gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_006231.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	POLE	NM_006231.4	MANE Select	c.2106G>T	p.Gly702Gly	synonymous	Exon 19 of 49	NP_006222.2	Q07864

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
POLE	ENST00000320574.10	TSL:1 MANE Select	c.2106G>T	p.Gly702Gly	synonymous	Exon 19 of 49	ENSP00000322570.5	Q07864
POLE	ENST00000535270.5	TSL:1	c.2025G>T	p.Gly675Gly	synonymous	Exon 18 of 48	ENSP00000445753.1	F5H1D6
POLE	ENST00000537064.5	TSL:1	n.*1153G>T		non_coding_transcript_exon	Exon 19 of 49	ENSP00000442578.1	F5H7E4

Frequencies

GnomAD3 genomes

AF:

0.00182

AC:

277

AN:

152216

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00644

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000458

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:

0.00144

GnomAD2 exomes

AF:

0.000552

AC:

138

AN:

250120

AF XY:

0.000399

show subpopulations

Gnomad AFR exome

AF:

0.00740

Gnomad AMR exome

AF:

0.000467

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:

0.000203

AC:

297

AN:

1460286

Hom.:

Cov.:

AF XY:

0.000162

AC XY:

118

AN XY:

726332

show subpopulations

African (AFR)

AF:

0.00719

AC:

240

AN:

33384

American (AMR)

AF:

0.000540

AC:

AN:

44452

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26056

East Asian (EAS)

AF:

0.00

AC:

AN:

39664

South Asian (SAS)

AF:

0.00

AC:

AN:

86058

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53382

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5758

European-Non Finnish (NFE)

AF:

0.00000360

AC:

AN:

1111194

Other (OTH)

AF:

0.000481

AC:

AN:

60338

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.480

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

<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:

0.00182

AC:

277

AN:

152334

Hom.:

Cov.:

AF XY:

0.00166

AC XY:

124

AN XY:

74500

show subpopulations

African (AFR)

AF:

0.00642

AC:

267

AN:

41584

American (AMR)

AF:

0.000457

AC:

AN:

15308

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5178

South Asian (SAS)

AF:

0.00

AC:

AN:

4830

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10622

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68024

Other (OTH)

AF:

0.00142

AC:

AN:

2110

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.485

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<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:

0.000884

Hom.:

Bravo

AF:

0.00232

ClinVar

ClinVar submissions

Significance:Benign/Likely benign

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (5)

not specified (3)

Hereditary cancer-predisposing syndrome (2)

Familial colorectal cancer type X;C5202613:Polymerase proofreading-related adenomatous polyposis (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.50

CADD

Benign

8.0

(source)

DANN

Benign

0.57

PhyloP100

-0.25

RBP_binding_hub_radar

1.1

RBP_regulation_power_radar

2.8

Mutation Taster

=94/6

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.060

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over