14-20457272-G-A

Variant names:

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_001641.4(APEX1):c.721G>A(p.Gly241Arg) variant causes a missense change. The variant allele was found at a frequency of 0.00101 in 1,614,210 control chromosomes in the GnomAD database, including 20 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.0052 ( 11 hom., cov: 33)

Exomes 𝑓: 0.00057 ( 9 hom. )

Consequence

APEX1
NM_001641.4 missense

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: 3.93

Variant links:

Genes affected

APEX1 (HGNC:587): (apurinic/apyrimidinic endodeoxyribonuclease 1) The APEX gene encodes the major AP endonuclease in human cells. It encodes the APEX endonuclease, a DNA repair enzyme with apurinic/apyrimidinic (AP) activity. Such AP activity sites occur frequently in DNA molecules by spontaneous hydrolysis, by DNA damaging agents or by DNA glycosylases that remove specific abnormal bases. The AP sites are the most frequent pre-mutagenic lesions that can prevent normal DNA replication. Splice variants have been found for this gene; all encode the same protein. Disruptions in the biological functions related to APEX are associated with many various malignancies and neurodegenerative diseases.[provided by RefSeq, Dec 2019]

APEX1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.008568823).

BP6

Variant 14-20457272-G-A is Benign according to our data. Variant chr14-20457272-G-A is described in ClinVar as [Benign]. Clinvar id is 709908.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00519 (791/152320) while in subpopulation AFR AF= 0.0183 (761/41574). AF 95% confidence interval is 0.0172. There are 11 homozygotes in gnomad4. There are 377 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.

BS2

High Homozygotes in GnomAd4 at 11 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
APEX1	NM_001641.4 link	c.721G>A	p.Gly241Arg	missense_variant	Exon 5 of 5	ENST00000216714.8	NP_001632.2	P27695Q5TZP7
APEX1	NM_001244249.2 link	c.721G>A	p.Gly241Arg	missense_variant	Exon 5 of 5		NP_001231178.1	P27695Q5TZP7
APEX1	NM_080648.3 link	c.721G>A	p.Gly241Arg	missense_variant	Exon 5 of 5		NP_542379.1	P27695Q5TZP7
APEX1	NM_080649.3 link	c.721G>A	p.Gly241Arg	missense_variant	Exon 5 of 5		NP_542380.1	P27695Q5TZP7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
APEX1	ENST00000216714.8 link	c.721G>A	p.Gly241Arg	missense_variant	Exon 5 of 5	1	NM_001641.4	ENSP00000216714.3		P27695

Frequencies

GnomAD3 genomes

AF:

0.00520

AC:

792

AN:

152202

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0184

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00131

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000588

Gnomad OTH

AF:

0.00239

GnomAD3 exomes

AF:

0.00138

AC:

348

AN:

251496

Hom.:

AF XY:

0.00100

AC XY:

136

AN XY:

135922

show subpopulations

Gnomad AFR exome

AF:

0.0187

Gnomad AMR exome

AF:

0.000896

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000791

Gnomad OTH exome

AF:

0.000651

GnomAD4 exome

AF:

0.000575

AC:

840

AN:

1461890

Hom.:

Cov.:

AF XY:

0.000498

AC XY:

362

AN XY:

727246

show subpopulations

Gnomad4 AFR exome

AF:

0.0199

Gnomad4 AMR exome

AF:

0.000917

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000348

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000378

Gnomad4 OTH exome

AF:

0.00136

GnomAD4 genome

AF:

0.00519

AC:

791

AN:

152320

Hom.:

Cov.:

AF XY:

0.00506

AC XY:

377

AN XY:

74478

show subpopulations

Gnomad4 AFR

AF:

0.0183

Gnomad4 AMR

AF:

0.00131

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000207

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000588

Gnomad4 OTH

AF:

0.00236

Alfa

AF:

0.000754

Hom.:

Bravo

AF:

0.00565

ESP6500AA

AF:

0.0134

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.00166

AC:

201

Asia WGS

AF:

0.00115

AC:

AN:

3478

EpiCase

AF:

0.000164

EpiControl

AF:

0.0000593

ClinVar

Significance: Benign

Submissions summary: Benign:3

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:2

Breakthrough Genomics, Breakthrough Genomics

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: not provided

- -

Dec 31, 2019

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

APEX1-related disorder

Benign:1

May 01, 2019

PreventionGenetics, part of Exact Sciences

Significance: Benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.26

BayesDel_addAF

Benign

-0.32

BayesDel_noAF

Benign

-0.21

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Benign

0.19

T;T;T;T;.

Eigen

Uncertain

0.49

Eigen_PC

Uncertain

0.56

FATHMM_MKL

Uncertain

0.84

LIST_S2

Uncertain

0.94

.;.;D;D;D

MetaRNN

Benign

0.0086

T;T;T;T;T

MetaSVM

Benign

-0.29

MutationAssessor

Benign

0.50

N;N;.;N;.

PrimateAI

Uncertain

0.58

PROVEAN

Benign

-0.41

N;N;N;N;N

REVEL

Benign

0.20

Sift

Benign

0.030

D;D;D;D;T

Sift4G

Benign

0.16

T;T;T;T;T

Polyphen

1.0

D;D;.;D;.

Vest4

0.45

MutPred

0.51

Gain of solvent accessibility (P = 0.0456);Gain of solvent accessibility (P = 0.0456);Gain of solvent accessibility (P = 0.0456);Gain of solvent accessibility (P = 0.0456);.;

MVP

0.82

MPC

0.74

ClinPred

0.030

GERP RS

5.6

Varity_R

0.83

gMVP

0.85

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over