NM_001136018.4:c.823A>G

Variant summary

Our verdict is Benign. The variant received -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_001136018.4(EPHX1):​c.823A>G​(p.Thr275Ala) variant causes a missense change. The variant allele was found at a frequency of 0.000481 in 1,614,200 control chromosomes in the GnomAD database, including 7 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00062 ( 1 hom., cov: 32)
Exomes 𝑓: 0.00047 ( 6 hom. )

Consequence

EPHX1
NM_001136018.4 missense

Scores

2
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 4.66

Publications

7 publications found
Variant links:
Genes affected
EPHX1 (HGNC:3401): (epoxide hydrolase 1) Epoxide hydrolase is a critical biotransformation enzyme that converts epoxides from the degradation of aromatic compounds to trans-dihydrodiols which can be conjugated and excreted from the body. Epoxide hydrolase functions in both the activation and detoxification of epoxides. Mutations in this gene cause preeclampsia, epoxide hydrolase deficiency or increased epoxide hydrolase activity. Alternatively spliced transcript variants encoding the same protein have been found for this gene.[provided by RefSeq, Dec 2008]
EPHX1 Gene-Disease associations (from GenCC):
  • familial hypercholanemia
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
  • hereditary nonpolyposis colon cancer
    Inheritance: AD Classification: LIMITED Submitted by: ClinGen

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -8 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.006364256).
BS2
High Homozygotes in GnomAdExome4 at 6 AR,AD gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
EPHX1NM_001136018.4 linkc.823A>G p.Thr275Ala missense_variant Exon 6 of 9 ENST00000272167.10 NP_001129490.1 P07099R4SBI6

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
EPHX1ENST00000272167.10 linkc.823A>G p.Thr275Ala missense_variant Exon 6 of 9 1 NM_001136018.4 ENSP00000272167.5 P07099
EPHX1ENST00000366837.5 linkc.823A>G p.Thr275Ala missense_variant Exon 6 of 9 1 ENSP00000355802.4 P07099
EPHX1ENST00000614058.4 linkc.823A>G p.Thr275Ala missense_variant Exon 6 of 9 1 ENSP00000480004.1 P07099

Frequencies

GnomAD3 genomes
AF:
0.000618
AC:
94
AN:
152204
Hom.:
1
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000262
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.0166
Gnomad SAS
AF:
0.000827
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.00142
AC:
357
AN:
251492
AF XY:
0.00123
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000116
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0186
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00147
GnomAD4 exome
AF:
0.000467
AC:
683
AN:
1461878
Hom.:
6
Cov.:
32
AF XY:
0.000469
AC XY:
341
AN XY:
727234
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33478
American (AMR)
AF:
0.0000894
AC:
4
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.0143
AC:
569
AN:
39700
South Asian (SAS)
AF:
0.000139
AC:
12
AN:
86258
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53420
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.00000450
AC:
5
AN:
1112000
Other (OTH)
AF:
0.00154
AC:
93
AN:
60394
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.488
Heterozygous variant carriers
0
47
94
140
187
234
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
20
40
60
80
100
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.000617
AC:
94
AN:
152322
Hom.:
1
Cov.:
32
AF XY:
0.000604
AC XY:
45
AN XY:
74496
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41568
American (AMR)
AF:
0.000261
AC:
4
AN:
15302
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.0166
AC:
86
AN:
5184
South Asian (SAS)
AF:
0.000828
AC:
4
AN:
4830
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10620
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68028
Other (OTH)
AF:
0.00
AC:
0
AN:
2112
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.503
Heterozygous variant carriers
0
6
11
17
22
28
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
4
8
12
16
20
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.000594
Hom.:
1
Bravo
AF:
0.000676
ExAC
AF:
0.00123
AC:
149
Asia WGS
AF:
0.00606
AC:
21
AN:
3478
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Hypercholanemia, familial 1 Uncertain:1
Sep 01, 2017
Baylor Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Likely pathogenicity based on finding it once in our laboratory homozygous in a 9-month-old male with hyperbilirubinemia, hepatosplenomegaly, nephromegaly, hepatic synthetic dysfunction. Heterozygotes would be expected to be asymptomatic carriers. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.16
BayesDel_addAF
Benign
-0.43
T
BayesDel_noAF
Benign
-0.37
CADD
Benign
20
DANN
Benign
0.44
DEOGEN2
Benign
0.34
T;T;T
Eigen
Benign
-0.74
Eigen_PC
Benign
-0.65
FATHMM_MKL
Uncertain
0.90
D
LIST_S2
Benign
0.52
.;T;.
MetaRNN
Benign
0.0064
T;T;T
MetaSVM
Benign
-1.1
T
MutationAssessor
Uncertain
2.2
M;M;M
PhyloP100
4.7
PrimateAI
Benign
0.29
T
PROVEAN
Benign
-1.4
N;.;N
REVEL
Benign
0.12
Sift
Benign
0.43
T;.;T
Sift4G
Benign
0.68
T;T;T
Polyphen
0.15
B;B;B
Vest4
0.30
MVP
0.69
MPC
0.29
ClinPred
0.038
T
GERP RS
3.3
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.026
gMVP
0.60
Mutation Taster
=96/4
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.060
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs35073925; hg19: chr1-226027630; COSMIC: COSV55303988; COSMIC: COSV55303988; API