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GeneBe

14-20456724-G-A

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 2P and 6B. PM2BP4_StrongBP6_Moderate

The NM_001641.4(APEX1):c.303G>A(p.Glu101=) variant causes a synonymous change. The variant allele was found at a frequency of 0.000102 in 1,614,210 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.00056 ( 1 hom., cov: 33)
Exomes 𝑓: 0.000055 ( 0 hom. )

Consequence

APEX1
NM_001641.4 synonymous

Scores

2

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 3.80
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]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.52).
BP6
Variant 14-20456724-G-A is Benign according to our data. Variant chr14-20456724-G-A is described in ClinVar as [Likely_benign]. Clinvar id is 735527.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
APEX1NM_001641.4 linkuse as main transcriptc.303G>A p.Glu101= synonymous_variant 4/5 ENST00000216714.8
APEX1NM_001244249.2 linkuse as main transcriptc.303G>A p.Glu101= synonymous_variant 4/5
APEX1NM_080648.3 linkuse as main transcriptc.303G>A p.Glu101= synonymous_variant 4/5
APEX1NM_080649.3 linkuse as main transcriptc.303G>A p.Glu101= synonymous_variant 4/5

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
APEX1ENST00000216714.8 linkuse as main transcriptc.303G>A p.Glu101= synonymous_variant 4/51 NM_001641.4 P1

Frequencies

GnomAD3 genomes
AF:
0.000558
AC:
85
AN:
152224
Hom.:
1
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00188
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000393
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:
0.000479
GnomAD3 exomes
AF:
0.000111
AC:
28
AN:
251484
Hom.:
0
AF XY:
0.0000956
AC XY:
13
AN XY:
135914
show subpopulations
Gnomad AFR exome
AF:
0.00166
Gnomad AMR exome
AF:
0.0000289
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:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000547
AC:
80
AN:
1461868
Hom.:
0
Cov.:
32
AF XY:
0.0000509
AC XY:
37
AN XY:
727240
show subpopulations
Gnomad4 AFR exome
AF:
0.00209
Gnomad4 AMR exome
AF:
0.0000224
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:
0.00000270
Gnomad4 OTH exome
AF:
0.0000828
GnomAD4 genome
AF:
0.000558
AC:
85
AN:
152342
Hom.:
1
Cov.:
33
AF XY:
0.000550
AC XY:
41
AN XY:
74498
show subpopulations
Gnomad4 AFR
AF:
0.00188
Gnomad4 AMR
AF:
0.000392
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.000474
Alfa
AF:
0.000386
Hom.:
0
Bravo
AF:
0.000827

ClinVar

Significance: Likely benign
Submissions summary: Benign:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Benign:1
Likely benign, criteria provided, single submitterclinical testingInvitaeDec 31, 2019- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.52
Cadd
Benign
7.6
Dann
Benign
0.87

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.

Other links and lift over

dbSNP: rs140332883; hg19: chr14-20924883; API