chr12-132668357-C-T

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_ModerateBP6BP7

The NM_006231.4(POLE):c.2172G>A(p.Ala724Ala) variant causes a splice region, synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000166 in 1,568,268 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Synonymous variant affecting the same amino acid position (i.e. A724A) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000092 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000085 ( 0 hom. )

Consequence

POLE
NM_006231.4 splice_region, synonymous

Scores

Splicing: ADA: 0.00003362

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:6

Conservation

PhyloP100: 1.73

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: Labcorp Genetics (formerly Invitae), Ambry Genetics, Genomics England PanelApp
facial dysmorphism-immunodeficiency-livedo-short stature syndrome
Inheritance: AR Classification: STRONG, MODERATE, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, Orphanet
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: Likely_benign. The variant received -4 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.29).

BP6

Variant 12-132668357-C-T is Benign according to our data. Variant chr12-132668357-C-T is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 405837.

BP7

Synonymous conserved (PhyloP=1.73 with no splicing effect.

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.2172G>A	p.Ala724Ala	splice_region 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.2172G>A	p.Ala724Ala	splice_region synonymous	Exon 19 of 49	ENSP00000322570.5	Q07864
POLE	ENST00000535270.5	TSL:1	c.2091G>A	p.Ala697Ala	splice_region synonymous	Exon 18 of 48	ENSP00000445753.1	F5H1D6
POLE	ENST00000537064.5	TSL:1	n.*1219G>A		splice_region non_coding_transcript_exon	Exon 19 of 49	ENSP00000442578.1	F5H7E4

Frequencies

GnomAD3 genomes

AF:

0.0000723

AC:

AN:

152202

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000217

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000193

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.000478

GnomAD2 exomes

AF:

0.0000275

AC:

AN:

218408

AF XY:

0.00000854

show subpopulations

Gnomad AFR exome

AF:

0.000254

Gnomad AMR exome

AF:

0.0000346

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:

0.00000847

AC:

AN:

1415948

Hom.:

Cov.:

AF XY:

0.00000429

AC XY:

AN XY:

699186

show subpopulations

African (AFR)

AF:

0.0000940

AC:

AN:

31912

American (AMR)

AF:

0.0000258

AC:

AN:

38760

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

23562

East Asian (EAS)

AF:

0.00

AC:

AN:

38852

South Asian (SAS)

AF:

0.0000252

AC:

AN:

79256

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52084

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5252

European-Non Finnish (NFE)

AF:

9.19e-7

AC:

AN:

1087948

Other (OTH)

AF:

0.0000857

AC:

AN:

58322

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.529

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome 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

GnomAD4 genome

AF:

0.0000919

AC:

AN:

152320

Hom.:

Cov.:

AF XY:

0.0000671

AC XY:

AN XY:

74484

show subpopulations

African (AFR)

AF:

0.000289

AC:

AN:

41578

American (AMR)

AF:

0.00

AC:

AN:

15294

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.000193

AC:

AN:

5176

South Asian (SAS)

AF:

0.00

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10628

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68032

Other (OTH)

AF:

0.000473

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.534

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:

0.0000333

Hom.:

Bravo

AF:

0.0000529

Asia WGS

AF:

0.000577

AC:

AN:

3478

ClinVar

ClinVar submissions as Germline

Significance:Conflicting classifications of pathogenicity

Revision:criteria provided, conflicting classifications

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (3)

Hereditary cancer-predisposing syndrome (2)

Familial colorectal cancer type X (1)

not specified (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.29

CADD

Benign

7.4

(source)

DANN

Benign

0.84

PhyloP100

1.7

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Mutation Taster

=55/45

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.000034

dbscSNV1_RF

Benign

0.018

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.

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