rs150043310

Variant names:

Variant summary

Our verdict is Benign. The variant received -9 ACMG points: 0P and 9B. BP4_StrongBP6BS2

The NM_001039876.3(SYNE4):c.962G>A(p.Arg321Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000239 in 1,614,006 control chromosomes in the GnomAD database, including 6 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). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R321W) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00022 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00024 ( 6 hom. )

Consequence

SYNE4
NM_001039876.3 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:3

Conservation

PhyloP100: -2.21

Publications

3 publications found

Variant links:

Genes affected

SYNE4 (HGNC:26703): (spectrin repeat containing nuclear envelope family member 4) This gene is a member of the nesprin family of genes, that encode KASH (Klarsicht, Anc-1, Syne Homology) domain-containing proteins. In addition to the KASH domain, this protein also contains a coiled-coil and leucine zipper region, a spectrin repeat, and a kinesin-1 binding region. This protein localizes to the outer nuclear membrane, and is part of the linker of nucleoskeleton and cytoskeleton (LINC) complex in the nuclear envelope. LINC complexes are formed by SUN (Sad1, UNC-84)-KASH pairs, and are thought to mechanically couple nuclear components to the cytoskeleton. Mutations in this gene have been associated with progressive high-frequency hearing loss. The absence of this protein in mice also caused hearing loss, and changes in hair cell morphology in the ears. Alternative splicing results in multiple transcript variants encoding different isoforms. [provided by RefSeq, Aug 2015]

SYNE4 Gene-Disease associations (from GenCC):

autosomal recessive nonsyndromic hearing loss 76
Inheritance: AR Classification: STRONG Submitted by: PanelApp Australia, Labcorp Genetics (formerly Invitae)
nonsyndromic genetic hearing loss
Inheritance: AR Classification: MODERATE Submitted by: ClinGen
hearing loss, autosomal recessive
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

SYNE4 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=0.008342236).

BP6

Variant 19-36005343-C-T is Benign according to our data. Variant chr19-36005343-C-T is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 504862.

BS2

High Homozygotes in GnomAdExome4 at 6 AR gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SYNE4	NM_001039876.3 link	c.962G>A	p.Arg321Gln	missense_variant	Exon 6 of 8	ENST00000324444.9	NP_001034965.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SYNE4	ENST00000324444.9 link	c.962G>A	p.Arg321Gln	missense_variant	Exon 6 of 8	5	NM_001039876.3	ENSP00000316130.3		Q8N205-1

Frequencies

GnomAD3 genomes

AF:

0.000217

AC:

AN:

152074

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000328

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00135

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000221

Gnomad OTH

AF:

0.00191

GnomAD2 exomes

AF:

0.000341

AC:

AN:

249534

AF XY:

0.000288

show subpopulations

Gnomad AFR exome

AF:

0.000129

Gnomad AMR exome

AF:

0.000695

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00128

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000132

Gnomad OTH exome

AF:

0.00264

GnomAD4 exome

AF:

0.000241

AC:

352

AN:

1461814

Hom.:

Cov.:

AF XY:

0.000191

AC XY:

139

AN XY:

727206

show subpopulations

African (AFR)

AF:

0.0000896

AC:

AN:

33480

American (AMR)

AF:

0.000894

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26134

East Asian (EAS)

AF:

0.000453

AC:

AN:

39698

South Asian (SAS)

AF:

0.0000580

AC:

AN:

86256

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53412

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.000132

AC:

147

AN:

1111954

Other (OTH)

AF:

0.00230

AC:

139

AN:

60388

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

Exome Het

Exome Hom

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

AF:

0.000217

AC:

AN:

152192

Hom.:

Cov.:

AF XY:

0.000121

AC XY:

AN XY:

74402

show subpopulations

African (AFR)

AF:

0.0000482

AC:

AN:

41528

American (AMR)

AF:

0.000327

AC:

AN:

15278

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00135

AC:

AN:

5180

South Asian (SAS)

AF:

0.00

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10588

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000221

AC:

AN:

68002

Other (OTH)

AF:

0.00189

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.481

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:

0.000333

Hom.:

Bravo

AF:

0.000283

ExAC

AF:

0.000347

AC:

Asia WGS

AF:

0.00491

AC:

AN:

3478

EpiCase

AF:

0.000164

EpiControl

AF:

0.0000593

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:3

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:1Benign:2

Nov 04, 2019

Athena Diagnostics

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Aug 13, 2019

GeneDx

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Aug 09, 2022

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces arginine, which is basic and polar, with glutamine, which is neutral and polar, at codon 321 of the SYNE4 protein (p.Arg321Gln). This variant is present in population databases (rs150043310, gnomAD 0.1%). This variant has not been reported in the literature in individuals affected with SYNE4-related conditions. ClinVar contains an entry for this variant (Variation ID: 504862). Algorithms developed to predict the effect of missense changes on protein structure and function output the following: SIFT: "Tolerated"; PolyPhen-2: "Possibly Damaging"; Align-GVGD: "Class C0". The glutamine amino acid residue is found in multiple mammalian species, which suggests that this missense change does not adversely affect protein function. Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may create or strengthen a splice site. 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 specified

Benign:1

Sep 12, 2017

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

p.Arg321Gln in exon 6 of SYNE4: This variant is not expected to have clinical si gnificance due to a lack of conservation across species, including mammals. Of n ote, >10 mammals have a Gln at this position. In addition, computational predict ion tools do not suggest a high likelihood of impact to the protein. This varian t has also been identified in 0.11% (21/18870) of East Asian chromosomes includi ng 2 by the Genome Aggregation Database (gnomAD, http://gnomad.broadinstitute.or g; dbSNP rs150043310). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.080

BayesDel_addAF

Benign

-0.49

BayesDel_noAF

Benign

-0.54

CADD

Benign

1.4

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.0023

T;T;.

Eigen

Benign

-1.1

Eigen_PC

Benign

-1.1

FATHMM_MKL

Benign

0.017

LIST_S2

Benign

0.74

.;T;T

M_CAP

Benign

0.0060

MetaRNN

Benign

0.0083

T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.84

L;L;.

PhyloP100

-2.2

PrimateAI

Benign

0.20

PROVEAN

Benign

-0.080

N;.;N

REVEL

Benign

0.041

Sift

Benign

0.30

T;.;T

Sift4G

Benign

0.40

T;.;T

Polyphen

0.023

B;B;B

Vest4

0.13

MVP

0.23

MPC

0.32

ClinPred

0.052

GERP RS

-2.5

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.6

Varity_R

0.023

gMVP

0.092

Mutation Taster

=100/0

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