rs150550013

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BP4_Strong

The NM_182961.4(SYNE1):c.23260G>A(p.Val7754Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00033 in 1,613,962 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00042 ( 1 hom., cov: 30)

Exomes 𝑓: 0.00032 ( 0 hom. )

Consequence

SYNE1
NM_182961.4 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:9B:2

Conservation

PhyloP100: 0.764

Publications

3 publications found

Variant links:

Genes affected

SYNE1 (HGNC:17089): (spectrin repeat containing nuclear envelope protein 1) This gene encodes a spectrin repeat containing protein expressed in skeletal and smooth muscle, and peripheral blood lymphocytes, that localizes to the nuclear membrane. Mutations in this gene have been associated with autosomal recessive spinocerebellar ataxia 8, also referred to as autosomal recessive cerebellar ataxia type 1 or recessive ataxia of Beauce. Alternatively spliced transcript variants encoding different isoforms have been described. [provided by RefSeq, Jul 2008]

SYNE1 Gene-Disease associations (from GenCC):

autosomal recessive ataxia, Beauce type
Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Ambry Genetics, G2P, Orphanet, Laboratory for Molecular Medicine, Labcorp Genetics (formerly Invitae)
arthrogryposis multiplex congenita 3, myogenic type
Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
Emery-Dreifuss muscular dystrophy 4, autosomal dominant
Inheritance: AD Classification: MODERATE, LIMITED Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), Illumina
autosomal dominant Emery-Dreifuss muscular dystrophy
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
autosomal recessive myogenic arthrogryposis multiplex congenita
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

SYNE1 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 (MetaRNN=0.01957801).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SYNE1	NM_182961.4 link	c.23260G>A	p.Val7754Ile	missense_variant	Exon 128 of 146	ENST00000367255.10	NP_892006.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SYNE1	ENST00000367255.10 link	c.23260G>A	p.Val7754Ile	missense_variant	Exon 128 of 146	1	NM_182961.4	ENSP00000356224.5		Q8NF91-1

Frequencies

GnomAD3 genomes

AF:

0.000401

AC:

AN:

152016

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000483

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000193

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.0000946

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000544

Gnomad OTH

AF:

0.000957

GnomAD2 exomes

AF:

0.000199

AC:

AN:

251236

AF XY:

0.000214

show subpopulations

Gnomad AFR exome

AF:

0.000185

Gnomad AMR exome

AF:

0.000145

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000326

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000291

Gnomad OTH exome

AF:

0.000326

GnomAD4 exome

AF:

0.000321

AC:

469

AN:

1461828

Hom.:

Cov.:

AF XY:

0.000304

AC XY:

221

AN XY:

727224

show subpopulations

African (AFR)

AF:

0.000329

AC:

AN:

33478

American (AMR)

AF:

0.000157

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26134

East Asian (EAS)

AF:

0.000529

AC:

AN:

39692

South Asian (SAS)

AF:

0.0000696

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.0000936

AC:

AN:

53408

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.000359

AC:

399

AN:

1111972

Other (OTH)

AF:

0.000331

AC:

AN:

60394

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.458

Heterozygous variant carriers

102

127

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:

0.000421

AC:

AN:

152134

Hom.:

Cov.:

AF XY:

0.000403

AC XY:

AN XY:

74372

show subpopulations

African (AFR)

AF:

0.000554

AC:

AN:

41524

American (AMR)

AF:

0.00

AC:

AN:

15272

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.000194

AC:

AN:

5158

South Asian (SAS)

AF:

0.00

AC:

AN:

4824

European-Finnish (FIN)

AF:

0.0000946

AC:

AN:

10568

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000544

AC:

AN:

67998

Other (OTH)

AF:

0.000947

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.483

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:

0.000357

Hom.:

Bravo

AF:

0.000291

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.000259

AC:

ESP6500AA

AF:

0.000454

AC:

ESP6500EA

AF:

0.000349

AC:

ExAC

AF:

0.000157

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

EpiCase

AF:

0.000164

EpiControl

AF:

0.000178

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:9Benign:2

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:6

Sep 29, 2017

ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The p.Val7683Ile variant (rs150550013) has not been reported in the medical literature. The p.Val7683Ile variant is listed in the Genome Aggregation Database (gnomAD) browser with an overall allele frequency of 0.02% (identified in 56 out of 276,916 chromosomes), and is classified as a variant of uncertain significance in ClinVar (Variant ID: 288855). The valine at codon 7683 is weakly conserved considering 12 species (Alamut software v2.10.0), and computational analyses predict that this variant does not affect the structure/function of the SYNE1 protein (SIFT: tolerated, PolyPhen2: benign, MutationTaster: polymorphism). However, based on the available information, the clinical significance of the p.Val7683Ile variant cannot be determined with certainty. -

Jan 23, 2025

GeneDx

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Reported previously as a variant of uncertain significance and in the compound heterozygous state in a patient with an intellectual development disorder; however, no further clinical information was provided (PMID: 35887114); In silico analysis indicates that this missense variant does not alter protein structure/function; This variant is associated with the following publications: (PMID: 34482403, 35887114) -

Dec 19, 2016

Eurofins Ntd Llc (ga)

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Aug 13, 2024

Athena Diagnostics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Available data are insufficient to determine the clinical significance of the variant at this time. The frequency of this variant in the general population is uninformative in assessment of its pathogenicity. (http://gnomad.broadinstitute.org) Polyphen and MutationTaster predict this amino acid change may be benign. -

Sep 01, 2018

CeGaT Center for Human Genetics Tuebingen

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Dec 10, 2018

Mayo Clinic Laboratories, Mayo Clinic

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

BP4_strong -

Autosomal recessive ataxia, Beauce type;C2751807:Emery-Dreifuss muscular dystrophy 4, autosomal dominant

Uncertain:1

Sep 07, 2022

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces valine, which is neutral and non-polar, with isoleucine, which is neutral and non-polar, at codon 7683 of the SYNE1 protein (p.Val7683Ile). This variant is present in population databases (rs150550013, gnomAD 0.04%). This variant has not been reported in the literature in individuals affected with SYNE1-related conditions. ClinVar contains an entry for this variant (Variation ID: 288855). Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Tolerated"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0". The isoleucine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Autosomal recessive ataxia, Beauce type

Uncertain:1

Jan 12, 2018

Illumina Laboratory Services, Illumina

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -

SYNE1-related disorder

Uncertain:1

Apr 10, 2024

PreventionGenetics, part of Exact Sciences

Significance:Uncertain significance

Review Status:no assertion criteria provided

Collection Method:clinical testing

The SYNE1 c.23047G>A variant is predicted to result in the amino acid substitution p.Val7683Ile. To our knowledge, this variant has not been reported in the literature. This variant is reported in 0.040% of alleles in individuals of African descent in gnomAD. At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -

Inborn genetic diseases

Benign:1

Jul 15, 2021

Ambry Genetics

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Emery-Dreifuss muscular dystrophy 4, autosomal dominant

Benign:1

Jan 12, 2018

Illumina Laboratory Services, Illumina

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.069

BayesDel_addAF

Benign

-0.57

BayesDel_noAF

Benign

-0.68

CADD

Benign

9.1

(source)

DANN

Benign

0.41

DEOGEN2

Benign

0.079

T;.;T;T;T

Eigen

Benign

-1.1

Eigen_PC

Benign

-0.93

FATHMM_MKL

Benign

0.28

LIST_S2

Benign

0.39

T;T;T;T;T

M_CAP

Benign

0.0046

MetaRNN

Benign

0.020

T;T;T;T;T

MetaSVM

Benign

-0.99

MutationAssessor

Benign

-0.98

N;.;.;.;.

PhyloP100

0.76

PrimateAI

Benign

0.26

PROVEAN

Benign

0.27

N;.;N;N;N

REVEL

Benign

0.0090

Sift

Benign

1.0

T;.;T;T;T

Sift4G

Benign

1.0

T;T;T;T;T

Polyphen

0.0

B;.;.;.;.

Vest4

0.12

MVP

0.23

MPC

0.11

ClinPred

0.0075

GERP RS

-1.1

Varity_R

0.030

gMVP

0.057

Mutation Taster

=91/9

polymorphism

(source)

Splicing

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