rs147508177

chr6-152425389-A-G

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 0P and 10B. BP4_Strong BP6 BP7 BS2

The NM_182961.4(SYNE1):c.5259T>C(p.Ile1753=) 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:6
• Conservation: PhyloP100: 0.338

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]

ACMG classification

Verdict is Benign. Variant got -10 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 id is 283030.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=5, Uncertain_significance=2, Benign=1}.
• BP7: Synonymous conserved (PhyloP=0.338 with no splicing effect.
• BS2: High AC in GnomAd at 76 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
SYNE1	NM_182961.4	c.5259T>C	p.Ile1753=	synonymous_variant	39/146	ENST00000367255.10

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
SYNE1	ENST00000367255.10	c.5259T>C	p.Ile1753=	synonymous_variant	39/146	1	NM_182961.4	P1
SYNE1	ENST00000423061.6	c.5280T>C	p.Ile1760=	synonymous_variant	39/146	1
SYNE1	ENST00000461872.6	n.5477T>C		non_coding_transcript_exon_variant	37/55	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

GnomAD3 exomes AF: 0.000402 AC: 101 AN: 251214 Hom.: 0 AF XY: 0.000361 AC XY: 49 AN XY: 135778

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 SAS 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

Gnomad4 AFR exome AF: 0.000179

Gnomad4 AMR exome AF: 0.0000447

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.0000749

Gnomad4 NFE exome AF: 0.000725

Gnomad4 OTH exome AF: 0.000414

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

Gnomad4 AFR AF: 0.000168

Gnomad4 AMR AF: 0.000196

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.0000941

Gnomad4 NFE AF: 0.000955

Gnomad4 OTH AF: 0.00

Alfa AF: 0.000518 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:6

Revision: criteria provided, conflicting classifications

Submissions by phenotype

not provided Uncertain:1 Benign:3

Likely benign, criteria provided, single submitter	clinical testing	CeGaT Center for Human Genetics Tuebingen	Nov 01, 2022	SYNE1: BP4, BP7 -
Uncertain significance, criteria provided, single submitter	clinical testing	Eurofins Ntd Llc (ga)	Sep 14, 2015	- -
Likely benign, criteria provided, single submitter	clinical testing	GeneDx	Oct 08, 2020	- -
Likely benign, criteria provided, single submitter	clinical testing	Athena Diagnostics	Aug 14, 2019	- -

Autosomal recessive ataxia, Beauce type Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jan 12, 2018

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. -

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

Likely benign, criteria provided, single submitter

clinical testing

Invitae

Jan 12, 2024

- -

SYNE1-related disorder Benign:1

Likely benign, criteria provided, single submitter

clinical testing

PreventionGenetics, part of Exact Sciences

Jan 10, 2020

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

Benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jan 12, 2018

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

Splicing

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

Publications

LitVar

Other links and lift over

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