rs35378260

Variant summary

Our verdict is Benign. Variant got -19 ACMG points: 1P and 20B. PP2BP4_StrongBP6_Very_StrongBS1BS2

The NM_182961.4(SYNE1):c.3890C>T(p.Ala1297Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00111 in 1,613,574 control chromosomes in the GnomAD database, including 15 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/19 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. A1297T) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0059 ( 9 hom., cov: 33)

Exomes 𝑓: 0.00062 ( 6 hom. )

Consequence

SYNE1
NM_182961.4 missense

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:6

Conservation

PhyloP100: 0.545

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 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -19 ACMG points.

PP2

Missense variant where missense usually causes diseases, SYNE1

BP4

Computational evidence support a benign effect (MetaRNN=0.004220128).

BP6

Variant 6-152442193-G-A is Benign according to our data. Variant chr6-152442193-G-A is described in ClinVar as [Benign]. Clinvar id is 130443.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr6-152442193-G-A is described in Lovd as [Benign].

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00586 (892/152298) while in subpopulation AFR AF= 0.0204 (849/41556). AF 95% confidence interval is 0.0193. There are 9 homozygotes in gnomad4. There are 425 alleles in male gnomad4 subpopulation. This position pass quality control queck.

BS2

High AC in GnomAd at 889 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
SYNE1	NM_182961.4 linkuse as main transcript	c.3890C>T	p.Ala1297Val	missense_variant	31/146	ENST00000367255.10

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
SYNE1	ENST00000367255.10 linkuse as main transcript	c.3890C>T	p.Ala1297Val	missense_variant	31/146	1	NM_182961.4	P1	Q8NF91-1

Frequencies

GnomAD3 genomes

AF:

0.00584

AC:

889

AN:

152180

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0204

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00203

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:

0.0000588

Gnomad OTH

AF:

0.00382

GnomAD3 exomes

AF:

0.00158

AC:

394

AN:

249686

Hom.:

AF XY:

0.00109

AC XY:

147

AN XY:

135112

show subpopulations

Gnomad AFR exome

AF:

0.0225

Gnomad AMR exome

AF:

0.000579

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000980

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000533

Gnomad OTH exome

AF:

0.000328

GnomAD4 exome

AF:

0.000619

AC:

904

AN:

1461276

Hom.:

Cov.:

AF XY:

0.000542

AC XY:

394

AN XY:

726952

show subpopulations

Gnomad4 AFR exome

AF:

0.0228

Gnomad4 AMR exome

AF:

0.000850

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000580

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000108

Gnomad4 OTH exome

AF:

0.00134

GnomAD4 genome

AF:

0.00586

AC:

892

AN:

152298

Hom.:

Cov.:

AF XY:

0.00571

AC XY:

425

AN XY:

74480

show subpopulations

Gnomad4 AFR

AF:

0.0204

Gnomad4 AMR

AF:

0.00203

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000588

Gnomad4 OTH

AF:

0.00378

Alfa

AF:

0.00141

Hom.:

Bravo

AF:

0.00692

ESP6500AA

AF:

0.0204

AC:

ESP6500EA

AF:

0.00

AC:

ExAC

AF:

0.00198

AC:

241

Asia WGS

AF:

0.000866

AC:

AN:

3478

EpiCase

AF:

0.00

EpiControl

AF:

0.000119

ClinVar

Significance: Benign

Submissions summary: Benign:6

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:2

Benign, criteria provided, single submitter	clinical testing	GeneDx	Jun 16, 2017	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. -
Likely benign, no assertion criteria provided	clinical testing	Genetic Services Laboratory, University of Chicago	-	Likely benign based on allele frequency in 1000 Genomes Project or ESP global frequency and its presence in a patient with a rare or unrelated disease phenotype. NOT Sanger confirmed. -

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

Benign:1

Benign, criteria provided, single submitter

clinical testing

Invitae

Jan 04, 2024

- -

not provided

Benign:1

Benign, criteria provided, single submitter

clinical testing

Athena Diagnostics

Dec 27, 2018

- -

Autosomal recessive ataxia, Beauce type

Benign:1

Benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jan 13, 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. -

Emery-Dreifuss muscular dystrophy 4, autosomal dominant

Benign:1

Benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jan 13, 2018

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.081

BayesDel_addAF

Benign

-0.47

BayesDel_noAF

Benign

-0.43

Cadd

Benign

6.8

Dann

Benign

0.97

DEOGEN2

Benign

0.19

T;.;T;.;.;.

Eigen

Benign

-0.82

Eigen_PC

Benign

-0.92

FATHMM_MKL

Benign

0.16

LIST_S2

Benign

0.84

T;T;T;T;T;T

MetaRNN

Benign

0.0042

T;T;T;T;T;T

MetaSVM

Benign

-0.89

MutationAssessor

Benign

1.6

L;.;.;L;.;L

MutationTaster

Benign

1.0

N;N;N;N;N;N;N;N

PrimateAI

Benign

0.29

PROVEAN

Benign

-1.0

N;.;N;N;N;N

REVEL

Benign

0.11

Sift

Benign

0.27

T;.;T;T;T;T

Sift4G

Benign

0.30

T;T;T;T;T;T

Polyphen

0.30

B;.;.;P;B;.

Vest4

0.23

MVP

0.63

MPC

0.14

ClinPred

0.0027

GERP RS

-1.2

Varity_R

0.038

gMVP

0.096

Splicing

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

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over