Variant 14-20456854-G-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BS2

The NM_001641.4(APEX1):c.433G>A(p.Gly145Ser) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000102 in 1,613,686 control chromosomes in the GnomAD database, including 2 homozygotes. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00014 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000099 ( 2 hom. )

Consequence

APEX1
NM_001641.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.03

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:

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

BS2

High Homozygotes in GnomAdExome at 2 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
APEX1	NM_001641.4 linkuse as main transcript	c.433G>A	p.Gly145Ser	missense_variant	4/5	ENST00000216714.8
APEX1	NM_001244249.2 linkuse as main transcript	c.433G>A	p.Gly145Ser	missense_variant	4/5
APEX1	NM_080648.3 linkuse as main transcript	c.433G>A	p.Gly145Ser	missense_variant	4/5
APEX1	NM_080649.3 linkuse as main transcript	c.433G>A	p.Gly145Ser	missense_variant	4/5

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
APEX1	ENST00000216714.8 linkuse as main transcript	c.433G>A	p.Gly145Ser	missense_variant	4/5	1	NM_001641.4	P1

Frequencies

GnomAD3 genomes

AF:

0.000138

AC:

AN:

152176

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000362

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00104

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000225

AC:

AN:

249216

Hom.:

AF XY:

0.000304

AC XY:

AN XY:

134796

show subpopulations

Gnomad AFR exome

AF:

0.000497

Gnomad AMR exome

AF:

0.0000290

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000546

Gnomad SAS exome

AF:

0.00148

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000891

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000985

AC:

144

AN:

1461510

Hom.:

Cov.:

AF XY:

0.000153

AC XY:

111

AN XY:

727024

show subpopulations

Gnomad4 AFR exome

AF:

0.000209

Gnomad4 AMR exome

AF:

0.0000895

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.00138

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000899

Gnomad4 OTH exome

AF:

0.0000497

GnomAD4 genome

AF:

0.000138

AC:

AN:

152176

Hom.:

Cov.:

AF XY:

0.0000673

AC XY:

AN XY:

74336

show subpopulations

Gnomad4 AFR

AF:

0.000362

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00104

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000147

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000907

ESP6500AA

AF:

0.000454

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.000222

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Feb 03, 2022

The c.433G>A (p.G145S) alteration is located in exon 4 (coding exon 3) of the APEX1 gene. This alteration results from a G to A substitution at nucleotide position 433, causing the glycine (G) at amino acid position 145 to be replaced by a serine (S). 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

0.72

BayesDel_addAF

Benign

-0.058

BayesDel_noAF

Uncertain

0.11

Cadd

Pathogenic

Dann

Uncertain

1.0

DEOGEN2

Uncertain

0.50

D;D;D;T;D;.;D;D;.

Eigen

Pathogenic

0.87

Eigen_PC

Pathogenic

0.81

FATHMM_MKL

Pathogenic

0.99

M_CAP

Pathogenic

0.35

MetaRNN

Uncertain

0.54

D;D;D;D;D;D;D;D;D

MetaSVM

Uncertain

0.62

MutationAssessor

Pathogenic

3.3

M;M;.;.;M;.;.;.;.

MutationTaster

Benign

1.0

D;D;D;D

PrimateAI

Uncertain

0.76

PROVEAN

Pathogenic

-5.9

D;D;D;D;D;D;D;D;D

REVEL

Pathogenic

0.78

Sift

Pathogenic

0.0

D;D;D;D;D;D;D;D;D

Sift4G

Uncertain

0.018

D;D;D;D;D;D;D;D;D

Polyphen

1.0

D;D;.;.;D;.;.;.;.

Vest4

0.84

MVP

0.95

MPC

0.71

ClinPred

0.34

GERP RS

4.9

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.98

gMVP

0.86

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