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GeneBe

17-58195111-A-G

Variant summary

Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong

The NM_000502.6(EPX):c.742A>G(p.Thr248Ala) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000744 in 1,613,926 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000055 ( 1 hom. )

Consequence

EPX
NM_000502.6 missense

Scores

19

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.904
Variant links:
Genes affected
EPX (HGNC:3423): (eosinophil peroxidase) This gene is a member of the peroxidase gene family and is expressed in eosinophils. The encoded preproprotein is proteolytically processed into covalently attached heavy and light chains to form the mature enzyme, which functions as an oxidant. The enzyme is released at sites of parasitic infection or allergen stimulation to mediate lysis of protozoa or parasitic worms. The gene is found in a gene cluster with other peroxidase genes on chromosome 17. Mutations in this gene result in eosinophil peroxidase deficiency. [provided by RefSeq, Feb 2016]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.0472036).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
EPXNM_000502.6 linkuse as main transcriptc.742A>G p.Thr248Ala missense_variant 6/13 ENST00000225371.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
EPXENST00000225371.6 linkuse as main transcriptc.742A>G p.Thr248Ala missense_variant 6/132 NM_000502.6 P1

Frequencies

GnomAD3 genomes
AF:
0.0000263
AC:
4
AN:
152056
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000483
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.0000943
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.000479
GnomAD3 exomes
AF:
0.0000159
AC:
4
AN:
251432
Hom.:
0
AF XY:
0.0000147
AC XY:
2
AN XY:
135896
show subpopulations
Gnomad AFR exome
AF:
0.000185
Gnomad AMR exome
AF:
0.00
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:
0.00000879
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000547
AC:
8
AN:
1461870
Hom.:
1
Cov.:
34
AF XY:
0.00000413
AC XY:
3
AN XY:
727238
show subpopulations
Gnomad4 AFR exome
AF:
0.000149
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:
0.00
Gnomad4 OTH exome
AF:
0.0000497
GnomAD4 genome
AF:
0.0000263
AC:
4
AN:
152056
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74278
show subpopulations
Gnomad4 AFR
AF:
0.0000483
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.0000943
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.000479
Alfa
AF:
0.000132
Hom.:
0
Bravo
AF:
0.0000340
ExAC
AF:
0.0000165
AC:
2

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 submitterclinical testingAmbry GeneticsDec 28, 2022The c.742A>G (p.T248A) alteration is located in exon 6 (coding exon 6) of the EPX gene. This alteration results from a A to G substitution at nucleotide position 742, causing the threonine (T) at amino acid position 248 to be replaced by an alanine (A). 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
Benign
0.059
BayesDel_addAF
Benign
-0.36
T
BayesDel_noAF
Benign
-0.48
Cadd
Benign
7.0
Dann
Benign
0.70
DEOGEN2
Benign
0.21
T
Eigen
Benign
-0.94
Eigen_PC
Benign
-0.92
FATHMM_MKL
Benign
0.14
N
LIST_S2
Benign
0.28
T
M_CAP
Benign
0.0073
T
MetaRNN
Benign
0.047
T
MetaSVM
Benign
-1.0
T
MutationAssessor
Benign
0.34
N
MutationTaster
Benign
1.0
N
PrimateAI
Benign
0.44
T
PROVEAN
Benign
-0.54
N
REVEL
Benign
0.038
Sift
Benign
0.50
T
Sift4G
Benign
0.51
T
Polyphen
0.017
B
Vest4
0.14
MVP
0.65
MPC
0.11
ClinPred
0.061
T
GERP RS
0.91
Varity_R
0.023
gMVP
0.58

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: rs775657051; hg19: chr17-56272472; COSMIC: COSV56599401; API