chr14-64051889-G-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.7976G>A(p.Arg2659Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000355 in 1,613,882 control chromosomes in the GnomAD database, including 1 homozygotes. 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 Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R2659P) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00041 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00035 ( 1 hom. )

Consequence

SYNE2
NM_182914.3 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:4B:1

Conservation

PhyloP100: 0.710

Publications

7 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
left ventricular noncompaction
Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics
Emery-Dreifuss muscular dystrophy 5, autosomal dominant
Inheritance: Unknown, AD Classification: LIMITED, NO_KNOWN Submitted by: Labcorp Genetics (formerly Invitae), Illumina, Ambry Genetics

SYNE2 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=0.0088279545).

BS1

Variant frequency is greater than expected in population amr. GnomAd4 allele frequency = 0.000414 (63/152258) while in subpopulation AMR AF = 0.000719 (11/15300). AF 95% confidence interval is 0.000521. There are 0 homozygotes in GnomAd4. There are 25 alleles in the male GnomAd4 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 GnomAd4 at 63 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

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SYNE2	NM_182914.3	MANE Select	c.7976G>A	p.Arg2659Gln	missense	Exon 48 of 116	NP_878918.2	Q8WXH0-2
	SYNE2	NM_015180.6		c.7976G>A	p.Arg2659Gln	missense	Exon 48 of 115	NP_055995.4

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
SYNE2	ENST00000555002.6	TSL:1 MANE Select	c.7976G>A	p.Arg2659Gln	missense	Exon 48 of 116	ENSP00000450831.2	Q8WXH0-2
SYNE2	ENST00000344113.8	TSL:1	c.7976G>A	p.Arg2659Gln	missense	Exon 48 of 115	ENSP00000341781.4	Q8WXH0-1
SYNE2	ENST00000358025.7	TSL:5	c.7976G>A	p.Arg2659Gln	missense	Exon 48 of 116	ENSP00000350719.3	Q8WXH0-2

Frequencies

GnomAD3 genomes

AF:

0.000414

AC:

AN:

152140

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000483

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000720

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.000189

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000676

Gnomad OTH

AF:

0.000955

GnomAD2 exomes

AF:

0.000284

AC:

AN:

246726

AF XY:

0.000298

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000203

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000558

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000349

AC:

510

AN:

1461624

Hom.:

Cov.:

AF XY:

0.000367

AC XY:

267

AN XY:

727090

show subpopulations

African (AFR)

AF:

0.0000597

AC:

AN:

33480

American (AMR)

AF:

0.000201

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39698

South Asian (SAS)

AF:

0.0000232

AC:

AN:

86244

European-Finnish (FIN)

AF:

0.0000376

AC:

AN:

53174

Middle Eastern (MID)

AF:

0.000347

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.000429

AC:

477

AN:

1112006

Other (OTH)

AF:

0.000265

AC:

AN:

60394

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.492

Heterozygous variant carriers

128

160

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

100

<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:

0.000414

AC:

AN:

152258

Hom.:

Cov.:

AF XY:

0.000336

AC XY:

AN XY:

74450

show subpopulations

African (AFR)

AF:

0.0000482

AC:

AN:

41532

American (AMR)

AF:

0.000719

AC:

AN:

15300

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3466

East Asian (EAS)

AF:

0.00

AC:

AN:

5184

South Asian (SAS)

AF:

0.00

AC:

AN:

4822

European-Finnish (FIN)

AF:

0.000189

AC:

AN:

10610

Middle Eastern (MID)

AF:

0.00

AC:

AN:

292

European-Non Finnish (NFE)

AF:

0.000676

AC:

AN:

68024

Other (OTH)

AF:

0.000945

AC:

AN:

2116

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.491

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:

0.000463

Hom.:

Bravo

AF:

0.000499

TwinsUK

AF:

0.00108

AC:

ALSPAC

AF:

0.000519

AC:

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000361

AC:

ExAC

AF:

0.000281

AC:

EpiCase

AF:

0.000436

EpiControl

AF:

0.000711

ClinVar

ClinVar submissions

Significance:Conflicting classifications of pathogenicity

Revision:criteria provided, conflicting classifications

View on ClinVar

Pathogenic

VUS

Benign

Condition

Emery-Dreifuss muscular dystrophy 5, autosomal dominant (3)

not provided (2)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.053

BayesDel_addAF

Benign

-0.55

BayesDel_noAF

Benign

-0.67

CADD

Benign

(source)

DANN

Benign

0.33

DEOGEN2

Benign

0.0038

Eigen

Benign

-1.6

Eigen_PC

Benign

-1.5

FATHMM_MKL

Benign

0.0097

LIST_S2

Benign

0.60

M_CAP

Benign

0.0047

MetaRNN

Benign

0.0088

MetaSVM

Benign

-1.0

MutationAssessor

Benign

-1.8

PhyloP100

0.71

PrimateAI

Benign

0.19

PROVEAN

Benign

1.2

REVEL

Benign

0.036

Sift

Benign

0.67

Sift4G

Benign

1.0

Polyphen

0.0

Vest4

0.095

MVP

0.31

MPC

0.052

ClinPred

0.027

GERP RS

0.37

Varity_R

0.023

gMVP

0.015

Mutation Taster

=297/3

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

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over