rs769564739

chr14-64177451-G-A

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4 BS1_Supporting BS2

The NM_182914.3(SYNE2):c.17524G>A(p.Glu5842Lys) variant causes a missense change. The variant allele was found at a frequency of 0.0000496 in 1,614,034 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

• Frequency:
  • Genomes: 𝑓 0.000059 (0 hom., cov: 32)
  • Exomes 𝑓: 0.000049 (0 hom.)
• Consequence: SYNE2 NM_182914.3 missense
• Clinical Significance: Uncertain significance criteria provided, multiple submitters, no conflicts U:2
• Conservation: PhyloP100: 5.46

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]

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]

ACMG classification

Verdict is Likely_benign. Variant got -6 ACMG points.

• BP4: Computational evidence support a benign effect (MetaRNN=0.28605646).
• BS1: Variant frequency is greater than expected in population amr. gnomad4 allele frequency = 0.0000591 (9/152172) while in subpopulation AMR AF= 0.000131 (2/15280). AF 95% confidence interval is 0.0000226. There are 0 homozygotes in gnomad4. There are 4 alleles in male gnomad4 subpopulation. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting
• BS2: High AC in GnomAd at 9 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
SYNE2	NM_182914.3	c.17524G>A	p.Glu5842Lys	missense_variant	96/116	ENST00000555002.6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
SYNE2	ENST00000555002.6	c.17524G>A	p.Glu5842Lys	missense_variant	96/116	1	NM_182914.3	P4

Frequencies

GnomAD3 genomes AF: 0.0000591 AC: 9 AN: 152172 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.0000724

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.000131

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.0000441

Gnomad OTH AF: 0.000478

GnomAD3 exomes AF: 0.0000199 AC: 5 AN: 251372 Hom.: 0 AF XY: 0.0000294 AC XY: 4 AN XY: 135864

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 SAS exome AF: 0.0000327

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000352

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.0000486 AC: 71 AN: 1461862 Hom.: 0 Cov.: 32 AF XY: 0.0000481 AC XY: 35 AN XY: 727232

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.0000116

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.0000585

Gnomad4 OTH exome AF: 0.0000828

GnomAD4 genome AF: 0.0000591 AC: 9 AN: 152172 Hom.: 0 Cov.: 32 AF XY: 0.0000538 AC XY: 4 AN XY: 74356

Gnomad4 AFR AF: 0.0000724

Gnomad4 AMR AF: 0.000131

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.0000441

Gnomad4 OTH AF: 0.000478

Alfa AF: 0.000113 Hom.: 0

Bravo AF: 0.0000680

ExAC AF: 0.0000165 AC: 2

EpiCase AF: 0.0000545

EpiControl AF: 0.0000593

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

Emery-Dreifuss muscular dystrophy 5, autosomal dominant Uncertain:2

Uncertain significance, criteria provided, single submitter	clinical testing	Invitae	Apr 05, 2018	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 output the following: SIFT: "Deleterious"; PolyPhen-2: "Possibly Damaging"; Align-GVGD: "Class C0". The lysine amino acid residue is found in multiple mammalian species, suggesting that this missense change does not adversely affect protein function. These predictions have not been confirmed by published functional studies and their clinical significance is uncertain. This variant has not been reported in the literature in individuals with SYNE2-related disease. ClinVar contains an entry for this variant (Variation ID: 313632). This sequence change replaces glutamic acid with lysine at codon 5842 of the SYNE2 protein (p.Glu5842Lys). The glutamic acid residue is moderately conserved and there is a small physicochemical difference between glutamic acid and lysine. This variant is present in population databases (rs769564739, ExAC 0.006%). -
Uncertain significance, criteria provided, single submitter	clinical testing	Illumina Laboratory Services, Illumina	Jan 12, 2018	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, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.11
BayesDel_addAF	Uncertain	0.16	D
BayesDel_noAF	Uncertain	0.090
Cadd	Uncertain	24
Dann	Uncertain	1.0
Eigen	Uncertain	0.59
Eigen_PC	Uncertain	0.63
FATHMM_MKL	Uncertain	0.95	D
LIST_S2	Uncertain	0.86	D;D;D;D;D
M_CAP	Uncertain	0.21	D
MetaRNN	Benign	0.29	T;T;T;T;T
MetaSVM	Uncertain	0.013	D
MutationAssessor	Uncertain	2.2	M;.;M;.;.
MutationTaster	Benign	1.0	D;D;D;D;D;D;D
PrimateAI	Benign	0.45	T
PROVEAN	Uncertain	-3.7	D;.;D;D;D
REVEL	Uncertain	0.46
Sift	Benign	0.032	D;.;D;D;D
Sift4G	Uncertain	0.0070	D;D;D;D;D
Polyphen		0.97	D;.;D;D;.
Vest4		0.43
MutPred		0.31		Gain of ubiquitination at E5842 (P = 0.0031);.;Gain of ubiquitination at E5842 (P = 0.0031);.;.;
MVP		0.79
MPC		0.28
ClinPred		0.84	D
GERP RS		6.1
Varity_R		0.42
gMVP		0.28

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

LitVar

Other links and lift over

dbSNP: rs769564739; hg19: chr14-64644169; COSMIC: COSV59956424;