rs756481940

Variant names:

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_182914.3(SYNE2):c.9812G>A(p.Ser3271Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000274 in 1,461,744 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Synonymous variant affecting the same amino acid position (i.e. S3271S) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000027 ( 0 hom. )

Consequence

SYNE2
NM_182914.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 1.96

Publications

0 publications found

Variant links:

Genes affected

SYNE2 (HGNC:17084): (spectrin repeat containing nuclear envelope protein 2) The protein encoded by this gene is a nuclear outer membrane protein that binds cytoplasmic F-actin. This binding tethers the nucleus to the cytoskeleton and aids in the maintenance of the structural integrity of the nucleus. Several transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Mar 2009]

SYNE2 Gene-Disease associations (from GenCC):

autosomal dominant Emery-Dreifuss muscular dystrophy
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
Emery-Dreifuss muscular dystrophy 5, autosomal dominant
Inheritance: AD, Unknown Classification: LIMITED, NO_KNOWN Submitted by: Illumina, Labcorp Genetics (formerly Invitae), Ambry Genetics
left ventricular noncompaction
Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics

SYNE2 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.06908432).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SYNE2	NM_182914.3 link	c.9812G>A	p.Ser3271Asn	missense_variant	Exon 49 of 116	ENST00000555002.6	NP_878918.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SYNE2	ENST00000555002.6 link	c.9812G>A	p.Ser3271Asn	missense_variant	Exon 49 of 116	1	NM_182914.3	ENSP00000450831.2		Q8WXH0-2A0A0C4DGK3

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000401

AC:

AN:

249484

AF XY:

0.00000739

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000883

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000274

AC:

AN:

1461744

Hom.:

Cov.:

AF XY:

0.00000413

AC XY:

AN XY:

727178

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33478

American (AMR)

AF:

0.00

AC:

AN:

44718

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39694

South Asian (SAS)

AF:

0.0000116

AC:

AN:

86254

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53414

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00000270

AC:

AN:

1111892

Other (OTH)

AF:

0.00

AC:

AN:

60390

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome 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

GnomAD4 genome

Cov.:

Alfa

AF:

0.0000329

Hom.:

Bravo

AF:

0.00000378

ExAC

AF:

0.00000827

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jun 02, 2025

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.9812G>A (p.S3271N) alteration is located in exon 49 (coding exon 48) of the SYNE2 gene. This alteration results from a G to A substitution at nucleotide position 9812, causing the serine (S) at amino acid position 3271 to be replaced by an asparagine (N). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Emery-Dreifuss muscular dystrophy 5, autosomal dominant

Uncertain:1

Sep 18, 2017

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

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. Algorithms developed to predict the effect of missense changes on protein structure and function do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Benign"; Align-GVGD: "Class C0"). This sequence change replaces serine with asparagine at codon 3271 of the SYNE2 protein (p.Ser3271Asn). The serine residue is weakly conserved and there is a small physicochemical difference between serine and asparagine. This variant is present in population databases (rs756481940, ExAC 0.001%). This variant has not been reported in the literature in individuals with SYNE2-related disease. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.077

BayesDel_addAF

Benign

-0.30

BayesDel_noAF

Benign

-0.67

CADD

Benign

6.9

(source)

DANN

Benign

0.88

DEOGEN2

Benign

0.015

.;T;T;T

Eigen

Benign

-0.92

Eigen_PC

Benign

-0.85

FATHMM_MKL

Benign

0.054

LIST_S2

Benign

0.75

T;T;T;T

M_CAP

Benign

0.0091

MetaRNN

Benign

0.069

T;T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.0

N;.;N;.

PhyloP100

2.0

PrimateAI

Benign

0.37

PROVEAN

Benign

-1.1

N;.;N;N

REVEL

Benign

0.12

Sift

Benign

0.32

T;.;T;T

Sift4G

Uncertain

0.014

D;D;D;D

Polyphen

0.068

B;.;B;.

Vest4

0.16

MVP

0.16

MPC

0.057

ClinPred

0.067

GERP RS

0.68

Varity_R

0.029

gMVP

0.13

Mutation Taster

=295/5

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.0

Details are displayed if max score is > 0.2

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

Publications

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over