Variant 12-132626287-G-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_006231.4(POLE):c.6361C>A(p.Gln2121Lys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,466 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

POLE
NM_006231.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 9.66

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 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein
POLE	NM_006231.4 linkuse as main transcript	c.6361C>A	p.Gln2121Lys	missense_variant	46/49	ENST00000320574.10	NP_006222.2
POLE	XM_011534795.4 linkuse as main transcript	c.6361C>A	p.Gln2121Lys	missense_variant	46/48		XP_011533097.1
POLE	XM_011534797.4 linkuse as main transcript	c.5440C>A	p.Gln1814Lys	missense_variant	38/40		XP_011533099.1
POLE	XM_011534802.4 linkuse as main transcript	c.3349C>A	p.Gln1117Lys	missense_variant	22/24		XP_011533104.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
POLE	ENST00000320574.10 linkuse as main transcript	c.6361C>A	p.Gln2121Lys	missense_variant	46/49	1	NM_006231.4	ENSP00000322570	P1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461466

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

727028

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

8.99e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jun 29, 2022

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. Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated. ClinVar contains an entry for this variant (Variation ID: 1064134). This variant has not been reported in the literature in individuals affected with POLE-related conditions. This variant is not present in population databases (gnomAD no frequency). This sequence change replaces glutamine, which is neutral and polar, with lysine, which is basic and polar, at codon 2121 of the POLE protein (p.Gln2121Lys). -

Hereditary cancer-predisposing syndrome

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jan 21, 2022

The p.Q2121K variant (also known as c.6361C>A), located in coding exon 46 of the POLE gene, results from a C to A substitution at nucleotide position 6361. The glutamine at codon 2121 is replaced by lysine, an amino acid with similar properties. This amino acid position is conserved. In addition, the in silico prediction for this alteration is inconclusive. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.39

BayesDel_addAF

Pathogenic

0.24

BayesDel_noAF

Uncertain

0.11

CADD

Uncertain

DANN

Uncertain

0.99

DEOGEN2

Benign

0.31

T;.

Eigen

Uncertain

0.33

Eigen_PC

Uncertain

0.44

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Uncertain

0.93

D;D

M_CAP

Benign

0.0056

MetaRNN

Uncertain

0.64

D;D

MetaSVM

Benign

-1.1

MutationAssessor

Uncertain

2.7

M;.

MutationTaster

Benign

1.0

D;D;D;D

PrimateAI

Uncertain

0.69

PROVEAN

Benign

-2.2

N;N

REVEL

Uncertain

0.38

Sift

Benign

0.054

T;T

Sift4G

Uncertain

0.033

D;D

Polyphen

0.26

B;.

Vest4

0.82

MutPred

0.42

Gain of MoRF binding (P = 0.0346);.;

MVP

0.35

MPC

0.31

ClinPred

0.98

GERP RS

4.8

Varity_R

0.46

gMVP

0.61

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

No publications associated with this variant yet.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over