14-64126740-C-T

Position:

• chr14-64126740-C-T

Variant summary

Our verdict is Benign. Variant got -13 ACMG points: 0P and 13B. BP4_Strong BP6 BS1 BS2

The NM_182914.3(SYNE2):​c.13850C>T​(p.Thr4617Ile) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000945 in 1,614,202 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 14/21 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 0.00082 (0 hom., cov: 32)
  • Exomes 𝑓: 0.00096 (1 hom.)
• Consequence: SYNE2 NM_182914.3 missense
• Clinical Significance: Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1 B:4
• Conservation: PhyloP100: 0.698

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 Benign. Variant got -13 ACMG points.

• BP4: Computational evidence support a benign effect (MetaRNN=0.0087682605).
• BP6: Variant 14-64126740-C-T is Benign according to our data. Variant chr14-64126740-C-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 282872.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=3, Benign=1, Uncertain_significance=1}.
• BS1: Variant frequency is greater than expected in population amr. gnomad4 allele frequency = 0.000821 (125/152340) while in subpopulation AMR AF= 0.000915 (14/15302). AF 95% confidence interval is 0.000664. There are 0 homozygotes in gnomad4. There are 52 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
• BS2: High AC in GnomAd4 at 125 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
SYNE2	NM_182914.3	c.13850C>T	p.Thr4617Ile	missense_variant	73/116	ENST00000555002.6	NP_878918.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
SYNE2	ENST00000555002.6	c.13850C>T	p.Thr4617Ile	missense_variant	73/116	1	NM_182914.3	ENSP00000450831	P4

Frequencies

GnomAD3 genomes AF: 0.000821 AC: 125 AN: 152222 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.000241

Gnomad AMI AF: 0.0461

Gnomad AMR AF: 0.000916

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.0000942

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.000838

Gnomad OTH AF: 0.000479

GnomAD3 exomes AF: 0.000617 AC: 155 AN: 251080 Hom.: 1 AF XY: 0.000612 AC XY: 83 AN XY: 135702

Gnomad AFR exome AF: 0.000123

Gnomad AMR exome AF: 0.000752

Gnomad ASJ exome AF: 0.0000994

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.0000327

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00104

Gnomad OTH exome AF: 0.00114

GnomAD4 exome AF: 0.000958 AC: 1401 AN: 1461862 Hom.: 1 Cov.: 32 AF XY: 0.000942 AC XY: 685 AN XY: 727238

Gnomad4 AFR exome AF: 0.0000299

Gnomad4 AMR exome AF: 0.00103

Gnomad4 ASJ exome AF: 0.000115

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.0000116

Gnomad4 FIN exome AF: 0.0000375

Gnomad4 NFE exome AF: 0.00115

Gnomad4 OTH exome AF: 0.000960

GnomAD4 genome AF: 0.000821 AC: 125 AN: 152340 Hom.: 0 Cov.: 32 AF XY: 0.000698 AC XY: 52 AN XY: 74498

Gnomad4 AFR AF: 0.000241

Gnomad4 AMR AF: 0.000915

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.0000942

Gnomad4 NFE AF: 0.000838

Gnomad4 OTH AF: 0.000474

Alfa AF: 0.000888 Hom.: 1

Bravo AF: 0.000956

TwinsUK AF: 0.00135 AC: 5

ALSPAC AF: 0.000778 AC: 3

ESP6500AA AF: 0.00 AC: 0

ESP6500EA AF: 0.000698 AC: 6

ExAC AF: 0.000601 AC: 73

EpiCase AF: 0.00174

EpiControl AF: 0.00119

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1 Benign:4

Revision: criteria provided, conflicting classifications

Submissions by phenotype

not specified Uncertain:1 Benign:1

Uncertain significance, criteria provided, single submitter	clinical testing	Ambry Genetics	Dec 22, 2023	The c.13850C>T (p.T4617I) alteration is located in exon 73 (coding exon 72) of the SYNE2 gene. This alteration results from a C to T substitution at nucleotide position 13850, causing the threonine (T) at amino acid position 4617 to be replaced by an isoleucine (I). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -
Likely benign, criteria provided, single submitter	clinical testing	Eurofins Ntd Llc (ga)	Sep 09, 2015	- -

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

Benign, 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 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. -
Likely benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Jan 12, 2024	- -

not provided Benign:1

Likely benign, criteria provided, single submitter

not provided

Breakthrough Genomics, Breakthrough Genomics

-

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.17
BayesDel_addAF	Benign	-0.40	T
BayesDel_noAF	Benign	-0.39
CADD	Benign	4.3
DANN	Benign	0.68
DEOGEN2	Benign	0.012	.;T;T;T;T
Eigen	Benign	-0.85
Eigen_PC	Benign	-0.85
FATHMM_MKL	Benign	0.15	N
LIST_S2	Benign	0.67	T;T;T;T;T
M_CAP	Benign	0.026	D
MetaRNN	Benign	0.0088	T;T;T;T;T
MetaSVM	Benign	-0.99	T
MutationAssessor	Uncertain	2.2	M;.;M;.;.
MutationTaster	Benign	1.0	N;N;N;N;N;N;N
PrimateAI	Benign	0.31	T
PROVEAN	Benign	-1.2	N;.;N;N;N
REVEL	Benign	0.045
Sift	Benign	0.18	T;.;T;D;T
Sift4G	Uncertain	0.055	T;D;T;D;T
Polyphen		0.013	B;.;B;.;.
Vest4		0.40
MVP		0.39
MPC		0.051
ClinPred		0.010	T
GERP RS		0.99
Varity_R		0.022
gMVP		0.19

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: rs148582250; hg19: chr14-64593458;