rs116931343

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_020451.3(SELENON):​c.*44G>T variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00126 in 1,603,776 control chromosomes in the GnomAD database, including 14 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0026 ( 2 hom., cov: 33)
Exomes 𝑓: 0.0011 ( 12 hom. )

Consequence

SELENON
NM_020451.3 3_prime_UTR

Scores

2

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: 1.47

Publications

1 publications found
Variant links:
Genes affected
SELENON (HGNC:15999): (selenoprotein N) This gene encodes a glycoprotein that is localized in the endoplasmic reticulum. It plays an important role in cell protection against oxidative stress, and in the regulation of redox-related calcium homeostasis. Mutations in this gene are associated with early onset muscle disorders, referred to as SEPN1-related myopathy. SEPN1-related myopathy consists of 4 autosomal recessive disorders, originally thought to be separate entities: rigid spine muscular dystrophy (RSMD1), the classical form of multiminicore disease, desmin related myopathy with Mallory-body like inclusions, and congenital fiber-type disproportion (CFTD). 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. A second stop-codon redefinition element (SRE) adjacent to the UGA codon has been identified in this gene (PMID:15791204). SRE is a phylogenetically conserved stem-loop structure that stimulates readthrough at the UGA codon, and augments the Sec insertion efficiency by SECIS. Alternatively spliced transcript variants have been found for this gene. [provided by RefSeq, Dec 2016]
SELENON Gene-Disease associations (from GenCC):
  • rigid spine muscular dystrophy 1
    Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: PanelApp Australia, G2P, Ambry Genetics
  • SELENON-related myopathy
    Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
  • congenital myopathy 4A, autosomal dominant
    Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
  • congenital fiber-type disproportion myopathy
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • desmin-related myopathy with Mallory body-like inclusions
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
  • rigid spine syndrome
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.73).
BP6
Variant 1-25815762-G-T is Benign according to our data. Variant chr1-25815762-G-T is described in ClinVar as Likely_benign. ClinVar VariationId is 261267.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
Variant frequency is greater than expected in population eas. GnomAd4 allele frequency = 0.00257 (392/152312) while in subpopulation EAS AF = 0.011 (57/5178). AF 95% confidence interval is 0.00872. There are 2 homozygotes in GnomAd4. There are 188 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.
BS2
High Homozygotes in GnomAd4 at 2 AR,AD gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_020451.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SELENON
NM_020451.3
MANE Select
c.*44G>T
3_prime_UTR
Exon 13 of 13NP_065184.2
SELENON
NM_206926.2
c.*44G>T
3_prime_UTR
Exon 12 of 12NP_996809.1Q9NZV5-2

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
SELENON
ENST00000361547.7
TSL:1 MANE Select
c.*44G>T
3_prime_UTR
Exon 13 of 13ENSP00000355141.2Q9NZV5-1
ENSG00000255054
ENST00000527604.1
TSL:5
n.123+1584G>T
intron
N/AENSP00000457066.1H3BT81
SELENON
ENST00000374315.1
TSL:5
c.*44G>T
3_prime_UTR
Exon 12 of 12ENSP00000363434.1Q9NZV5-2

Frequencies

GnomAD3 genomes
AF:
0.00256
AC:
389
AN:
152194
Hom.:
2
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00594
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000851
Gnomad ASJ
AF:
0.00317
Gnomad EAS
AF:
0.0110
Gnomad SAS
AF:
0.00393
Gnomad FIN
AF:
0.00169
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.000309
Gnomad OTH
AF:
0.00192
GnomAD2 exomes
AF:
0.00265
AC:
649
AN:
245064
AF XY:
0.00276
show subpopulations
Gnomad AFR exome
AF:
0.00584
Gnomad AMR exome
AF:
0.000290
Gnomad ASJ exome
AF:
0.00419
Gnomad EAS exome
AF:
0.0124
Gnomad FIN exome
AF:
0.00164
Gnomad NFE exome
AF:
0.000810
Gnomad OTH exome
AF:
0.00150
GnomAD4 exome
AF:
0.00112
AC:
1630
AN:
1451464
Hom.:
12
Cov.:
28
AF XY:
0.00121
AC XY:
878
AN XY:
722694
show subpopulations
African (AFR)
AF:
0.00647
AC:
216
AN:
33374
American (AMR)
AF:
0.000269
AC:
12
AN:
44686
Ashkenazi Jewish (ASJ)
AF:
0.00345
AC:
90
AN:
26084
East Asian (EAS)
AF:
0.0103
AC:
408
AN:
39658
South Asian (SAS)
AF:
0.00499
AC:
429
AN:
86024
European-Finnish (FIN)
AF:
0.00183
AC:
90
AN:
49264
Middle Eastern (MID)
AF:
0.000556
AC:
3
AN:
5400
European-Non Finnish (NFE)
AF:
0.000248
AC:
275
AN:
1106826
Other (OTH)
AF:
0.00178
AC:
107
AN:
60148
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.493
Heterozygous variant carriers
0
89
178
267
356
445
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
26
52
78
104
130
<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:
0.00257
AC:
392
AN:
152312
Hom.:
2
Cov.:
33
AF XY:
0.00252
AC XY:
188
AN XY:
74478
show subpopulations
African (AFR)
AF:
0.00599
AC:
249
AN:
41566
American (AMR)
AF:
0.000849
AC:
13
AN:
15304
Ashkenazi Jewish (ASJ)
AF:
0.00317
AC:
11
AN:
3472
East Asian (EAS)
AF:
0.0110
AC:
57
AN:
5178
South Asian (SAS)
AF:
0.00393
AC:
19
AN:
4832
European-Finnish (FIN)
AF:
0.00169
AC:
18
AN:
10622
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.000309
AC:
21
AN:
68022
Other (OTH)
AF:
0.00190
AC:
4
AN:
2110
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.503
Heterozygous variant carriers
0
21
41
62
82
103
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
10
20
30
40
50
<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:
0.00111
Hom.:
0
Bravo
AF:
0.00308
Asia WGS
AF:
0.0150
AC:
53
AN:
3478

ClinVar

ClinVar submissions
Significance:Likely benign
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
-
2
not provided (2)
-
-
1
not specified (1)
-
-
1
SEPN1-related disorder (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.73
CADD
Benign
6.0
DANN
Benign
0.86
PhyloP100
1.5
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.1
Mutation Taster
=100/0
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: rs116931343; hg19: chr1-26142253; API