14-20457358-T-C

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 0P and 10B. BP4_StrongBP6_ModerateBS2

The NM_001641.4(APEX1):ā€‹c.807T>Cā€‹(p.Tyr269Tyr) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000777 in 1,614,240 control chromosomes in the GnomAD database, including 5 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (ā˜…).

Frequency

Genomes: š‘“ 0.0035 ( 2 hom., cov: 32)
Exomes š‘“: 0.00049 ( 3 hom. )

Consequence

APEX1
NM_001641.4 synonymous

Scores

2

Clinical Significance

Benign criteria provided, single submitter B:2

Conservation

PhyloP100: 1.56
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 Benign. Variant got -10 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.67).
BP6
Variant 14-20457358-T-C is Benign according to our data. Variant chr14-20457358-T-C is described in ClinVar as [Benign]. Clinvar id is 715662.Status of the report is criteria_provided_single_submitter, 1 stars.
BS2
High Homozygotes in GnomAd4 at 2 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
APEX1NM_001641.4 linkuse as main transcriptc.807T>C p.Tyr269Tyr synonymous_variant 5/5 ENST00000216714.8 NP_001632.2 P27695Q5TZP7
APEX1NM_001244249.2 linkuse as main transcriptc.807T>C p.Tyr269Tyr synonymous_variant 5/5 NP_001231178.1 P27695Q5TZP7
APEX1NM_080648.3 linkuse as main transcriptc.807T>C p.Tyr269Tyr synonymous_variant 5/5 NP_542379.1 P27695Q5TZP7
APEX1NM_080649.3 linkuse as main transcriptc.807T>C p.Tyr269Tyr synonymous_variant 5/5 NP_542380.1 P27695Q5TZP7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
APEX1ENST00000216714.8 linkuse as main transcriptc.807T>C p.Tyr269Tyr synonymous_variant 5/51 NM_001641.4 ENSP00000216714.3 P27695

Frequencies

GnomAD3 genomes
AF:
0.00347
AC:
528
AN:
152230
Hom.:
2
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0118
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000850
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.0000941
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000191
Gnomad OTH
AF:
0.00478
GnomAD3 exomes
AF:
0.000863
AC:
217
AN:
251492
Hom.:
1
AF XY:
0.000728
AC XY:
99
AN XY:
135920
show subpopulations
Gnomad AFR exome
AF:
0.0103
Gnomad AMR exome
AF:
0.000463
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000544
Gnomad SAS exome
AF:
0.000196
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000176
Gnomad OTH exome
AF:
0.000977
GnomAD4 exome
AF:
0.000495
AC:
723
AN:
1461892
Hom.:
3
Cov.:
33
AF XY:
0.000446
AC XY:
324
AN XY:
727246
show subpopulations
Gnomad4 AFR exome
AF:
0.0132
Gnomad4 AMR exome
AF:
0.000626
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000209
Gnomad4 FIN exome
AF:
0.0000187
Gnomad4 NFE exome
AF:
0.000165
Gnomad4 OTH exome
AF:
0.000679
GnomAD4 genome
AF:
0.00349
AC:
531
AN:
152348
Hom.:
2
Cov.:
32
AF XY:
0.00332
AC XY:
247
AN XY:
74506
show subpopulations
Gnomad4 AFR
AF:
0.0119
Gnomad4 AMR
AF:
0.000849
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.0000941
Gnomad4 NFE
AF:
0.000191
Gnomad4 OTH
AF:
0.00473
Alfa
AF:
0.00190
Hom.:
2
Bravo
AF:
0.00384
Asia WGS
AF:
0.000866
AC:
3
AN:
3478
EpiCase
AF:
0.000109
EpiControl
AF:
0.000178

ClinVar

Significance: Benign
Submissions summary: Benign:2
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpAug 16, 2018- -
APEX1-related disorder Benign:1
Likely benign, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesFeb 18, 2019This variant is classified as likely 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
BayesDel_noAF
Benign
-0.67
CADD
Benign
4.3
DANN
Benign
0.63
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7

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: rs1065749; hg19: chr14-20925517; API