15-101275340-C-T

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP4

The NM_018445.6(SELENOS):​c.233G>A​(p.Arg78Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000698 in 1,576,768 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000063 ( 0 hom. )

Consequence

SELENOS
NM_018445.6 missense

Scores

2
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.831

Publications

2 publications found
Variant links:
Genes affected
SELENOS (HGNC:30396): (selenoprotein S) This gene encodes a transmembrane protein that is localized in the endoplasmic reticulum (ER). It is involved in the degradation process of misfolded proteins in the ER, and may also have a role in inflammation control. This protein is a selenoprotein, containing the rare amino acid selenocysteine (Sec). Sec is encoded by the UGA codon, which normally signals translation termination. The 3' UTRs of selenoprotein mRNAs contain a conserved stem-loop structure, designated the Sec insertion sequence (SECIS) element, that is necessary for the recognition of UGA as a Sec codon, rather than as a stop signal. Two additional phylogenetically conserved stem-loop structures (Stem-loop 1 and Stem-loop 2) in the 3' UTR of this mRNA have been shown to function as modulators of Sec insertion. An alternatively spliced transcript variant, lacking the SECIS element and encoding a non-Sec containing shorter isoform, has been described for this gene (PMID:23614019). [provided by RefSeq, Jul 2017]

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.29261026).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_018445.6. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SELENOS
NM_018445.6
MANE Select
c.233G>Ap.Arg78Gln
missense
Exon 3 of 6NP_060915.2
SELENOS
NM_203472.3
c.233G>Ap.Arg78Gln
missense
Exon 3 of 7NP_982298.2

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SELENOS
ENST00000526049.6
TSL:1 MANE Select
c.233G>Ap.Arg78Gln
missense
Exon 3 of 6ENSP00000433541.1Q9BQE4
SELENOS
ENST00000398226.8
TSL:1
c.233G>Ap.Arg78Gln
missense
Exon 3 of 7ENSP00000381282.3Q9BQE4
SELENOS
ENST00000528346.1
TSL:3
c.353G>Ap.Arg118Gln
missense
Exon 3 of 6ENSP00000434842.1E9PN30

Frequencies

GnomAD3 genomes
AF:
0.0000132
AC:
2
AN:
152006
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000484
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:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000102
AC:
2
AN:
195246
AF XY:
0.00000955
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS 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:
0.00000632
AC:
9
AN:
1424762
Hom.:
0
Cov.:
30
AF XY:
0.00000567
AC XY:
4
AN XY:
705464
show subpopulations
⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.
African (AFR)
AF:
0.00
AC:
0
AN:
32826
American (AMR)
AF:
0.0000263
AC:
1
AN:
38074
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25444
East Asian (EAS)
AF:
0.00
AC:
0
AN:
38836
South Asian (SAS)
AF:
0.0000620
AC:
5
AN:
80672
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
51570
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5692
European-Non Finnish (NFE)
AF:
0.00000183
AC:
2
AN:
1092684
Other (OTH)
AF:
0.0000170
AC:
1
AN:
58964
⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.00000649326), which strongly suggests a high chance of mosaicism in these individuals.
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.392
Heterozygous variant carriers
0
1
2
2
3
4
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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:
0.0000132
AC:
2
AN:
152006
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74214
show subpopulations
African (AFR)
AF:
0.0000484
AC:
2
AN:
41352
American (AMR)
AF:
0.00
AC:
0
AN:
15264
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3468
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5200
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4824
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10562
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68016
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.575
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.0000113

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, single submitter
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.078
BayesDel_addAF
Benign
-0.13
T
BayesDel_noAF
Benign
-0.42
CADD
Benign
21
DANN
Uncertain
1.0
DEOGEN2
Benign
0.077
T
Eigen
Benign
-0.32
Eigen_PC
Benign
-0.22
FATHMM_MKL
Benign
0.64
D
LIST_S2
Uncertain
0.88
D
M_CAP
Benign
0.0088
T
MetaRNN
Benign
0.29
T
MetaSVM
Benign
-0.94
T
MutationAssessor
Benign
0.88
L
PhyloP100
0.83
PrimateAI
Benign
0.46
T
PROVEAN
Benign
-1.7
N
REVEL
Benign
0.13
Sift
Benign
0.073
T
Sift4G
Benign
0.11
T
Polyphen
0.035
B
Vest4
0.34
MutPred
0.79
Loss of MoRF binding (P = 0.0326)
MVP
0.14
MPC
0.042
ClinPred
0.26
T
GERP RS
1.4
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.20
Mutation Taster
=73/27
polymorphism

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

Other links and lift over

dbSNP: rs1349020662; hg19: chr15-101815545; COSMIC: COSV68011552; COSMIC: COSV68011552; API