14-64225321-T-A

Variant names:

Variant summary

Our verdict is Benign. The variant received -9 ACMG points: 0P and 9B. BP4_StrongBS1_SupportingBS2

The NM_182914.3(SYNE2):c.20519T>A(p.Val6840Asp) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000041 in 1,461,832 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. 1/1 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. V6840G) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000041 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

SYNE2
NM_182914.3 missense, splice_region

Scores

Clinical Significance

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

Conservation

PhyloP100: -0.184

Publications

1 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 links:

ESR2 (HGNC:3468): (estrogen receptor 2) This gene encodes a member of the family of estrogen receptors and superfamily of nuclear receptor transcription factors. The gene product contains an N-terminal DNA binding domain and C-terminal ligand binding domain and is localized to the nucleus, cytoplasm, and mitochondria. Upon binding to 17beta-estradiol or related ligands, the encoded protein forms homo- or hetero-dimers that interact with specific DNA sequences to activate transcription. Some isoforms dominantly inhibit the activity of other estrogen receptor family members. Several alternatively spliced transcript variants of this gene have been described, but the full-length nature of some of these variants has not been fully characterized. [provided by RefSeq, Jul 2008]

ESR2 Gene-Disease associations (from GenCC):

male infertility with azoospermia or oligozoospermia due to single gene mutation
Inheritance: AR Classification: MODERATE Submitted by: King Faisal Specialist Hospital and Research Center
familial medullary thyroid carcinoma
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
ovarian dysgenesis 8
Inheritance: AD, Unknown Classification: LIMITED Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae)

ESR2 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -9 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.054312438).

BS1

Variant frequency is greater than expected in population nfe. GnomAdExome4 allele frequency = 0.000041 (60/1461832) while in subpopulation NFE AF = 0.0000504 (56/1112012). AF 95% confidence interval is 0.0000398. There are 0 homozygotes in GnomAdExome4. There are 27 alleles in the male GnomAdExome4 subpopulation. Median coverage is 32. This position passed quality control check. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

BS2

High AC in GnomAdExome4 at 60 AD,Unknown gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_182914.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
SYNE2	NM_182914.3	MANE Select	c.20519T>A	p.Val6840Asp	missense splice_region	Exon 116 of 116	NP_878918.2
SYNE2	NM_015180.6		c.20453T>A	p.Val6818Asp	missense splice_region	Exon 115 of 115	NP_055995.4
SYNE2	NM_182913.4		c.1466T>A	p.Val489Asp	missense splice_region	Exon 11 of 11	NP_878917.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
SYNE2	ENST00000555002.6	TSL:1 MANE Select	c.20519T>A	p.Val6840Asp	missense splice_region	Exon 116 of 116	ENSP00000450831.2
SYNE2	ENST00000344113.8	TSL:1	c.20453T>A	p.Val6818Asp	missense splice_region	Exon 115 of 115	ENSP00000341781.4
SYNE2	ENST00000458046.6	TSL:1	c.1466T>A	p.Val489Asp	missense splice_region	Exon 11 of 11	ENSP00000391937.2

Frequencies

GnomAD3 genomes

AF:

0.0000132

AC:

AN:

151992

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000208

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000322

AC:

AN:

248716

AF XY:

0.0000445

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:

0.0000719

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000410

AC:

AN:

1461832

Hom.:

Cov.:

AF XY:

0.0000371

AC XY:

AN XY:

727214

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33478

American (AMR)

AF:

0.00

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53364

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.0000504

AC:

AN:

1112012

Other (OTH)

AF:

0.0000662

AC:

AN:

60392

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.453

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

Data not reliable, filtered out with message: AS_VQSR

AF:

0.0000131

AC:

AN:

152110

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74380

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41496

American (AMR)

AF:

0.00

AC:

AN:

15290

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3468

East Asian (EAS)

AF:

0.00

AC:

AN:

5178

South Asian (SAS)

AF:

0.000208

AC:

AN:

4800

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10598

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

67972

Other (OTH)

AF:

0.00

AC:

AN:

2104

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.550

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.0000434

Hom.:

Bravo

AF:

0.0000151

ExAC

AF:

0.0000165

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

Aug 29, 2025

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.20519T>A (p.V6840D) alteration is located in exon 116 (coding exon 115) of the SYNE2 gene. This alteration results from a T to A substitution at nucleotide position 20519, causing the valine (V) at amino acid position 6840 to be replaced by an aspartic acid (D). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear.

Emery-Dreifuss muscular dystrophy 5, autosomal dominant

Uncertain:1

Jun 08, 2018

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces valine with aspartic acid at codon 6840 of the SYNE2 protein (p.Val6840Asp). The valine residue is weakly conserved and there is a large physicochemical difference between valine and aspartic acid. This variant is present in population databases (rs758858068, ExAC 0.01%). This variant has not been reported in the literature in individuals with SYNE2-related disease. Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Tolerated"; PolyPhen-2: "Possibly Damaging"; Align-GVGD: "Class C0"). 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.

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.11

BayesDel_addAF

Benign

-0.22

BayesDel_noAF

Benign

-0.36

CADD

Benign

6.5

(source)

DANN

Benign

0.78

DEOGEN2

Benign

0.022

Eigen

Benign

-0.87

Eigen_PC

Benign

-0.93

FATHMM_MKL

Benign

0.34

LIST_S2

Benign

0.83

M_CAP

Benign

0.024

MetaRNN

Benign

0.054

MetaSVM

Benign

-0.92

MutationAssessor

Benign

1.7

PhyloP100

-0.18

PrimateAI

Benign

0.34

PROVEAN

Benign

-0.010

REVEL

Benign

0.13

Sift

Benign

0.60

Sift4G

Benign

0.26

Polyphen

0.10

Vest4

0.29

MutPred

0.24

Loss of stability (P = 0.0496)

MVP

0.28

MPC

0.21

ClinPred

0.071

GERP RS

0.15

Varity_R

0.056

gMVP

0.31

Mutation Taster

=72/28

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

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over