rs886038660

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_ModerateBP6BP7

The NM_020451.3(SELENON):c.81C>T(p.Arg27Arg) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000206 in 998,312 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00013 ( 0 hom., cov: 30)

Exomes 𝑓: 0.00022 ( 0 hom. )

Consequence

SELENON
NM_020451.3 synonymous

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:2

Conservation

PhyloP100: 0.900

Publications

0 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 Submitted by: Ambry Genetics, G2P
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

SELENON links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -4 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.39).

BP6

Variant 1-25800311-C-T is Benign according to our data. Variant chr1-25800311-C-T is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 261288.

BP7

Synonymous conserved (PhyloP=0.9 with no splicing effect.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SELENON	NM_020451.3 link	c.81C>T	p.Arg27Arg	synonymous_variant	Exon 1 of 13	ENST00000361547.7	NP_065184.2	Q9NZV5-1
SELENON	NM_206926.2 link	c.81C>T	p.Arg27Arg	synonymous_variant	Exon 1 of 12		NP_996809.1	Q9NZV5-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
SELENON	ENST00000361547.7 link	c.81C>T	p.Arg27Arg	synonymous_variant	Exon 1 of 13	1	NM_020451.3	ENSP00000355141.2	Q9NZV5-1
SELENON	ENST00000374315.1 link	c.81C>T	p.Arg27Arg	synonymous_variant	Exon 1 of 12	5		ENSP00000363434.1	Q9NZV5-2
SELENON	ENST00000354177.9 link	c.81C>T	p.Arg27Arg	synonymous_variant	Exon 1 of 12	5		ENSP00000346109.5	H9KV50
SELENON	ENST00000494537.2 link	n.81C>T		non_coding_transcript_exon_variant	Exon 1 of 13	3		ENSP00000508308.1	A0A804HLD6

Frequencies

GnomAD3 genomes

AF:

0.000130

AC:

AN:

146432

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000489

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000679

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:

0.000243

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000168

AC:

AN:

5948

AF XY:

0.000296

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:

0.000506

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000220

AC:

187

AN:

851828

Hom.:

Cov.:

AF XY:

0.000237

AC XY:

AN XY:

396912

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

16082

American (AMR)

AF:

0.000343

AC:

AN:

2914

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

5842

East Asian (EAS)

AF:

0.00

AC:

AN:

4084

South Asian (SAS)

AF:

0.00

AC:

AN:

18984

European-Finnish (FIN)

AF:

0.00

AC:

AN:

1054

Middle Eastern (MID)

AF:

0.00

AC:

AN:

1704

European-Non Finnish (NFE)

AF:

0.000235

AC:

182

AN:

773084

Other (OTH)

AF:

0.000142

AC:

AN:

28080

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.477

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

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:

0.000130

AC:

AN:

146484

Hom.:

Cov.:

AF XY:

0.0000842

AC XY:

AN XY:

71268

show subpopulations

African (AFR)

AF:

0.0000489

AC:

AN:

40938

American (AMR)

AF:

0.0000678

AC:

AN:

14754

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3394

East Asian (EAS)

AF:

0.00

AC:

AN:

5092

South Asian (SAS)

AF:

0.00

AC:

AN:

4798

European-Finnish (FIN)

AF:

0.00

AC:

AN:

8388

Middle Eastern (MID)

AF:

0.00

AC:

AN:

288

European-Non Finnish (NFE)

AF:

0.000243

AC:

AN:

65882

Other (OTH)

AF:

0.00

AC:

AN:

2038

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.546

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<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:

0.000498

Hom.:

Bravo

AF:

0.000128

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:2

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:1

Jul 14, 2020

GeneDx

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

In silico analysis supports that this variant does not alter splicing; Has not been previously published as pathogenic or benign to our knowledge -

not specified

Benign:1

PreventionGenetics, part of Exact Sciences

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Eichsfeld type congenital muscular dystrophy

Benign:1

Oct 29, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.39

CADD

Benign

(source)

DANN

Uncertain

0.97

PhyloP100

0.90

PromoterAI

-0.020

Neutral

(source)

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over