chr14-64065437-G-T

Variant names:

Variant summary

Our verdict is Benign. The variant received -13 ACMG points: 0P and 13B. BP4_StrongBP6BS1BS2

The NM_182914.3(SYNE2):c.10218G>T(p.Leu3406Phe) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000423 in 1,613,886 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00026 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00044 ( 1 hom. )

Consequence

SYNE2
NM_182914.3 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:2

Conservation

PhyloP100: 1.01

Publications

2 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: Benign. The variant received -13 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.042994052).

BP6

Variant 14-64065437-G-T is Benign according to our data. Variant chr14-64065437-G-T is described in CliVar as Conflicting_classifications_of_pathogenicity. Clinvar id is 470909. Variant chr14-64065437-G-T is described in CliVar as Conflicting_classifications_of_pathogenicity. Clinvar id is 470909. Variant chr14-64065437-G-T is described in CliVar as Conflicting_classifications_of_pathogenicity. Clinvar id is 470909. Variant chr14-64065437-G-T is described in CliVar as Conflicting_classifications_of_pathogenicity. Clinvar id is 470909. Variant chr14-64065437-G-T is described in CliVar as Conflicting_classifications_of_pathogenicity. Clinvar id is 470909. Variant chr14-64065437-G-T is described in CliVar as Conflicting_classifications_of_pathogenicity. Clinvar id is 470909.

BS1

Variant frequency is greater than expected in population sas. GnomAd4 allele frequency = 0.000263 (40/152168) while in subpopulation SAS AF = 0.000829 (4/4824). AF 95% confidence interval is 0.000283. There are 0 homozygotes in GnomAd4. There are 22 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.

BS2

High AC in GnomAd4 at 40 AD,Unknown gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SYNE2	NM_182914.3 link	c.10218G>T	p.Leu3406Phe	missense_variant	Exon 51 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.10218G>T	p.Leu3406Phe	missense_variant	Exon 51 of 116	1	NM_182914.3	ENSP00000450831.2		Q8WXH0-2A0A0C4DGK3

Frequencies

GnomAD3 genomes

AF:

0.000263

AC:

AN:

152050

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000725

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000328

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000829

Gnomad FIN

AF:

0.0000944

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000397

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000265

AC:

AN:

249310

AF XY:

0.000259

show subpopulations

Gnomad AFR exome

AF:

0.0000646

Gnomad AMR exome

AF:

0.0000290

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000548

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000440

AC:

643

AN:

1461718

Hom.:

Cov.:

AF XY:

0.000433

AC XY:

315

AN XY:

727170

show subpopulations

African (AFR)

AF:

0.0000299

AC:

AN:

33480

American (AMR)

AF:

0.0000447

AC:

AN:

44714

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26134

East Asian (EAS)

AF:

0.0000252

AC:

AN:

39694

South Asian (SAS)

AF:

0.000162

AC:

AN:

86248

European-Finnish (FIN)

AF:

0.0000749

AC:

AN:

53386

Middle Eastern (MID)

AF:

0.000173

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.000546

AC:

607

AN:

1111906

Other (OTH)

AF:

0.000215

AC:

AN:

60388

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.466

Heterozygous variant carriers

126

158

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

110

<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:

0.000263

AC:

AN:

152168

Hom.:

Cov.:

AF XY:

0.000296

AC XY:

AN XY:

74402

show subpopulations

African (AFR)

AF:

0.0000723

AC:

AN:

41484

American (AMR)

AF:

0.000327

AC:

AN:

15280

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5182

South Asian (SAS)

AF:

0.000829

AC:

AN:

4824

European-Finnish (FIN)

AF:

0.0000944

AC:

AN:

10596

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000397

AC:

AN:

68018

Other (OTH)

AF:

0.00

AC:

AN:

2106

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.473

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome 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

Alfa

AF:

0.000394

Hom.:

Bravo

AF:

0.000223

TwinsUK

AF:

0.000539

AC:

ALSPAC

AF:

0.000259

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000612

AC:

ExAC

AF:

0.000406

AC:

EpiCase

AF:

0.000763

EpiControl

AF:

0.000356

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:2

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Emery-Dreifuss muscular dystrophy 5, autosomal dominant

Uncertain:1Benign: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. -

Jan 28, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces leucine, which is neutral and non-polar, with phenylalanine, which is neutral and non-polar, at codon 3406 of the SYNE2 protein (p.Leu3406Phe). This variant is present in population databases (rs201421128, gnomAD 0.05%), and has an allele count higher than expected for a pathogenic variant. This variant has not been reported in the literature in individuals affected with SYNE2-related conditions. ClinVar contains an entry for this variant (Variation ID: 470909). An algorithm developed to predict the effect of missense changes on protein structure and function outputs the following: PolyPhen-2: "Probably Damaging". The phenylalanine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. 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. -

not provided

Benign:1

Feb 01, 2023

CeGaT Center for Human Genetics Tuebingen

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

SYNE2: BP4 -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.13

BayesDel_addAF

Benign

-0.33

BayesDel_noAF

Benign

-0.36

CADD

Benign

(source)

DANN

Benign

0.75

DEOGEN2

Benign

0.040

.;T;T;T;T

Eigen

Benign

-0.55

Eigen_PC

Benign

-0.53

FATHMM_MKL

Benign

0.63

LIST_S2

Benign

0.79

T;T;T;T;T

M_CAP

Benign

0.035

MetaRNN

Benign

0.043

T;T;T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.6

L;.;L;.;.

PhyloP100

1.0

PrimateAI

Benign

0.40

PROVEAN

Uncertain

-2.5

D;.;D;N;N

REVEL

Benign

0.027

Sift

Benign

0.062

T;.;T;T;D

Sift4G

Uncertain

0.022

D;D;D;D;D

Polyphen

0.36

B;.;B;.;.

Vest4

0.28

MutPred

0.34

Loss of disorder (P = 0.069);.;Loss of disorder (P = 0.069);.;.;

MVP

0.36

MPC

0.32

ClinPred

0.061

GERP RS

1.4

Varity_R

0.074

gMVP

0.18

Mutation Taster

=76/24

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

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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