rs147508177

Variant names:

• chr6-152425389-A-G
• rs147508177
• NM_182961.4:c.5259T>C

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4_Strong BP6 BP7

The NM_182961.4(SYNE1):​c.5259T>C​(p.Ile1753Ile) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000569 in 1,614,088 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 0.00050 (0 hom., cov: 33)
  • Exomes 𝑓: 0.00058 (0 hom.)
• Consequence: SYNE1 NM_182961.4 synonymous
• Clinical Significance: Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2 B:7
• Conservation: PhyloP100: 0.338
• Publications: 3 publications found

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

ACMG classification

Our verdict: Likely_benign. The variant received -6 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.52).
• BP6: Variant 6-152425389-A-G is Benign according to our data. Variant chr6-152425389-A-G is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 283030.
• BP7: Synonymous conserved (PhyloP=0.338 with no splicing effect.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SYNE1	NM_182961.4	c.5259T>C	p.Ile1753Ile	synonymous_variant	Exon 39 of 146	ENST00000367255.10	NP_892006.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SYNE1	ENST00000367255.10	c.5259T>C	p.Ile1753Ile	synonymous_variant	Exon 39 of 146	1	NM_182961.4	ENSP00000356224.5
SYNE1	ENST00000423061.6	c.5280T>C	p.Ile1760Ile	synonymous_variant	Exon 39 of 146	1		ENSP00000396024.1
SYNE1	ENST00000461872.6	n.5477T>C		non_coding_transcript_exon_variant	Exon 37 of 55	1

Frequencies

GnomAD3 genomes AF: 0.000499 AC: 76 AN: 152236 Hom.: 0 Cov.: 33

Gnomad AFR AF: 0.000169

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.000196

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.0000941

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.000955

Gnomad OTH AF: 0.00

GnomAD2 exomes AF: 0.000402 AC: 101 AN: 251214 AF XY: 0.000361

Gnomad AFR exome AF: 0.000123

Gnomad AMR exome AF: 0.0000579

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.000828

Gnomad OTH exome AF: 0.000490

GnomAD4 exome AF: 0.000577 AC: 843 AN: 1461734 Hom.: 0 Cov.: 31 AF XY: 0.000536 AC XY: 390 AN XY: 727174

African (AFR) AF: 0.000179 AC: 6 AN: 33470

American (AMR) AF: 0.0000447 AC: 2 AN: 44722

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26134

East Asian (EAS) AF: 0.00 AC: 0 AN: 39690

South Asian (SAS) AF: 0.00 AC: 0 AN: 86242

European-Finnish (FIN) AF: 0.0000749 AC: 4 AN: 53410

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5764

European-Non Finnish (NFE) AF: 0.000725 AC: 806 AN: 1111914

Other (OTH) AF: 0.000414 AC: 25 AN: 60388

GnomAD4 genome AF: 0.000499 AC: 76 AN: 152354 Hom.: 0 Cov.: 33 AF XY: 0.000389 AC XY: 29 AN XY: 74506

African (AFR) AF: 0.000168 AC: 7 AN: 41580

American (AMR) AF: 0.000196 AC: 3 AN: 15300

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3472

East Asian (EAS) AF: 0.00 AC: 0 AN: 5186

South Asian (SAS) AF: 0.00 AC: 0 AN: 4832

European-Finnish (FIN) AF: 0.0000941 AC: 1 AN: 10628

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 294

European-Non Finnish (NFE) AF: 0.000955 AC: 65 AN: 68038

Other (OTH) AF: 0.00 AC: 0 AN: 2112

Alfa AF: 0.000550 Hom.: 0

Bravo AF: 0.000457

EpiCase AF: 0.000763

EpiControl AF: 0.000652

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:2 Benign:7

Revision: criteria provided, conflicting classifications

Submissions by phenotype

not provided Uncertain:1 Benign:3

Oct 08, 2020

GeneDx

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Sep 14, 2015

Eurofins Ntd Llc (ga)

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Nov 01, 2022

CeGaT Center for Human Genetics Tuebingen

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

SYNE1: BP4, BP7 -

Aug 14, 2019

Athena Diagnostics

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

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. -

not specified Benign:1

Feb 16, 2025

Laboratory of Genetics, Children's Clinical University Hospital Latvia

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Autosomal recessive ataxia, Beauce type;C2751807:Emery-Dreifuss muscular dystrophy 4, autosomal dominant Benign:1

Feb 02, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

SYNE1-related disorder Benign:1

Jan 10, 2020

PreventionGenetics, part of Exact Sciences

Significance: Likely benign

Review Status: no assertion criteria provided

Collection Method: clinical testing

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

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
BayesDel_noAF	Benign	-0.52
CADD	Benign	1.1
DANN	Benign	0.69
PhyloP100		0.34
Mutation Taster		=98/2	polymorphism

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs147508177; hg19: chr6-152746524; COSMIC: COSV104541733;