NM_182961.4:c.19698G>T

Variant names:

Variant summary

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

The NM_182961.4(SYNE1):c.19698G>T(p.Met6566Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000988 in 1,613,970 control chromosomes in the GnomAD database, including 11 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. M6566V) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0054 ( 5 hom., cov: 32)

Exomes 𝑓: 0.00053 ( 6 hom. )

Consequence

SYNE1
NM_182961.4 missense

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:5

Conservation

PhyloP100: 1.07

Publications

4 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: Benign. The variant received -20 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.009474009).

BP6

Variant 6-152242435-C-A is Benign according to our data. Variant chr6-152242435-C-A is described in ClinVar as Benign. ClinVar VariationId is 355839.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00543 (826/152156) while in subpopulation AFR AF = 0.0192 (798/41504). AF 95% confidence interval is 0.0181. There are 5 homozygotes in GnomAd4. There are 379 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check.

BS2

High Homozygotes in GnomAd4 at 5 AR,AD gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SYNE1	NM_182961.4 link	c.19698G>T	p.Met6566Ile	missense_variant	Exon 107 of 146	ENST00000367255.10	NP_892006.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
SYNE1	ENST00000367255.10 link	c.19698G>T	p.Met6566Ile	missense_variant	Exon 107 of 146	1	NM_182961.4	ENSP00000356224.5	Q8NF91-1
SYNE1	ENST00000423061.6 link	c.19485G>T	p.Met6495Ile	missense_variant	Exon 106 of 146	1		ENSP00000396024.1	A0A0C4DG40
SYNE1	ENST00000367256.9 link	n.3390G>T		non_coding_transcript_exon_variant	Exon 22 of 61	1
SYNE1	ENST00000409694.6 link	n.3282G>T		non_coding_transcript_exon_variant	Exon 20 of 59	1

Frequencies

GnomAD3 genomes

AF:

0.00543

AC:

826

AN:

152038

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0193

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00144

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:

0.0000147

Gnomad OTH

AF:

0.00239

GnomAD2 exomes

AF:

0.00138

AC:

348

AN:

251312

AF XY:

0.00102

show subpopulations

Gnomad AFR exome

AF:

0.0193

Gnomad AMR exome

AF:

0.000868

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000880

Gnomad OTH exome

AF:

0.000489

GnomAD4 exome

AF:

0.000525

AC:

768

AN:

1461814

Hom.:

Cov.:

AF XY:

0.000461

AC XY:

335

AN XY:

727220

show subpopulations

African (AFR)

AF:

0.0190

AC:

635

AN:

33478

American (AMR)

AF:

0.000805

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39696

South Asian (SAS)

AF:

0.0000232

AC:

AN:

86256

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53392

Middle Eastern (MID)

AF:

0.000347

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.0000126

AC:

AN:

1111968

Other (OTH)

AF:

0.00131

AC:

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.469

Heterozygous variant carriers

131

175

219

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

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:

0.00543

AC:

826

AN:

152156

Hom.:

Cov.:

AF XY:

0.00510

AC XY:

379

AN XY:

74378

show subpopulations

African (AFR)

AF:

0.0192

AC:

798

AN:

41504

American (AMR)

AF:

0.00144

AC:

AN:

15284

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5160

South Asian (SAS)

AF:

0.00

AC:

AN:

4816

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10596

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

68006

Other (OTH)

AF:

0.00237

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.502

Heterozygous variant carriers

129

172

215

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

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:

0.00224

Hom.:

Bravo

AF:

0.00625

ESP6500AA

AF:

0.0197

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.00167

AC:

203

Asia WGS

AF:

0.000577

AC:

AN:

3478

ClinVar

Significance: Benign

Submissions summary: Benign:5

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:1

Nov 11, 2016

GeneDx

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

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

Benign:1

Jan 20, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

not provided

Benign:1

Aug 09, 2018

Athena Diagnostics

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Autosomal recessive ataxia, Beauce type

Benign:1

Jan 13, 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. -

Emery-Dreifuss muscular dystrophy 4, autosomal dominant

Benign:1

Jan 13, 2018

Illumina Laboratory Services, Illumina

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.31

BayesDel_addAF

Benign

-0.54

BayesDel_noAF

Benign

-0.53

CADD

Benign

(source)

DANN

Benign

0.97

DEOGEN2

Benign

0.092

T;.;T

Eigen

Benign

-0.13

Eigen_PC

Benign

0.014

FATHMM_MKL

Uncertain

0.92

LIST_S2

Uncertain

0.89

D;D;D

MetaRNN

Benign

0.0095

T;T;T

MetaSVM

Benign

-1.1

MutationAssessor

Benign

1.1

L;.;.

PhyloP100

1.1

PrimateAI

Benign

0.36

PROVEAN

Benign

-0.51

N;.;N

REVEL

Benign

0.079

Sift

Benign

0.35

T;.;T

Sift4G

Benign

0.24

T;T;T

Polyphen

0.0010

B;.;.

Vest4

0.24

MutPred

0.16

Loss of ubiquitination at K6562 (P = 0.0437);.;.;

MVP

0.44

MPC

0.15

ClinPred

0.0062

GERP RS

4.6

Varity_R

0.090

gMVP

0.24

Mutation Taster

=100/0

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